<PAGE>

                   AMENDED AND RESTATED BUSINESS LOAN AGREEMENT

BORROWER:  SPECTRIAN CORPORATION
           350 WEST JAVA DRIVE
           SUNNYVALE, CA 94089

LENDER:    SILICON VALLEY BANK
           3003 TASMAN DRIVE
           SANTA CLARA, CA 95054

===============================================================================

THIS AMENDED AND RESTATED BUSINESS LOAN AGREEMENT BETWEEN SPECTRIAN 
CORPORATION ("BORROWER") AND SILICON VALLEY BANK ("LENDER") IS MADE AND 
EXECUTED ON THE FOLLOWING TERMS AND CONDITIONS. BORROWER HAS RECEIVED PRIOR 
COMMERCIAL LOANS FROM LENDER OR HAS APPLIED TO LENDER FOR A COMMERCIAL LOAN 
OR LOANS AND OTHER FINANCIAL ACCOMMODATIONS, INCLUDING THOSE WHICH MAY BE 
DESCRIBED ON ANY EXHIBIT OR SCHEDULE ATTACHED TO THIS AGREEMENT. ALL SUCH 
LOANS AND FINANCIAL ACCOMMODATIONS, TOGETHER WITH ALL FUTURE LOANS AND 
FINANCIAL ACCOMMODATIONS FROM LENDER TO BORROWER, ARE REFERRED TO IN THIS 
AGREEMENT INDIVIDUALLY AS THE "LOAN" AND COLLECTIVELY AS THE "LOANS." 
BORROWER UNDERSTANDS AND AGREES THAT: (A) IN GRANTING, RENEWING, OR 
EXTENDING ANY LOAN, LENDER IS RELYING UPON BORROWER'S REPRESENTATIONS, 
WARRANTIES, AND AGREEMENTS, AS SET FORTH IN THIS AGREEMENT; (B) THE GRANTING, 
RENEWING, OR EXTENDING OF ANY LOAN BY LENDER AT ALL TIMES SHALL BE SUBJECT TO 
LENDER'S SOLE JUDGMENT AND DISCRETION; AND (C) ALL SUCH LOANS SHALL BE AND 
SHALL REMAIN SUBJECT TO THE FOLLOWING TERMS AND CONDITIONS OF THIS AGREEMENT.

TERM. This Agreement shall be effective as of FEBRUARY 11, 1997, and shall 
continue thereafter until all Indebtedness of Borrower to Lender has been 
performed in full and the parties terminate this Agreement in writing.

DEFINITIONS. The following words shall have the following meanings when used 
in this Agreement. Terms not otherwise defined in this Agreement shall have 
the meanings attributed to such terms in the Uniform Commercial Code. All 
references to dollar amounts shall mean amounts in lawful money of the 
United States of America.

    AGREEMENT. The word "Agreement" means this Amended and Restated Business 
    Loan Agreement, as this Amended and Restated Business Loan Agreement may 
    be amended or modified from time to time, together with all exhibits and 
    schedules attached to this Amended and Restated Business Loan Agreement 
    from time to time.
    
    BORROWER. The word "Borrower" means Spectrian Corporation. The word 
    "Borrower" also includes, as applicable, all subsidiaries and affiliates 
    of Borrower as provided below in the paragraph titled "Subsidiaries and 
    Affiliates."
    
    CERCLA. The word "CERCLA" means the Comprehensive Environmental 
    Response, Compensation, and Liability Act of 1980, as amended.
    
    CASH FLOW. The words "Cash Flow" mean net income after taxes, and 
    exclusive of extraordinary gains and income, plus depreciation and 
    amortization.
    
    COLLATERAL. The word "Collateral" means and includes without limitation 
    all property and assets granted as collateral security for a Loan, 
    whether real or personal property, whether granted directly or 
    indirectly, whether granted now or in the future, and whether granted 
    in the form of a security interest, mortgage, deed of trust, assignment, 
    pledge, chattel mortgage, chattel trust, factor's lien, equipment trust, 
    conditional sale, trust receipt, lien, charge, lien or title retention 
    contract, lease or consignment intended as a security device, or any 
    other security or lien interest whatsoever, whether created by law, 
    contract, or otherwise.
    
    DEBT. The word "Debt" means all of Borrower's liabilities excluding 
    Subordinated Debt.
    
    ERISA. The word "ERISA" means the Employee Retirement Income Security 
    Act of 1974, as amended.
    
    EVENT OF DEFAULT. The words "Event of Default" mean and include without 
    limitation any of the Events of Default set forth below in the section 
    titled "EVENTS OF DEFAULT."
    
    GRANTOR. The word "Grantor" means and includes without limitation each 
    and all of the persons or entities granting a Security Interest in any 
    Collateral for the Indebtedness, including without limitation all 
    Borrowers granting such a Security Interest.
    
    GUARANTOR. The word "Guarantor" means and includes without limitation 
    each and all of the guarantors, sureties, and accommodation parties in 
    connection with any Indebtedness.
    
    INDEBTEDNESS. The word "Indebtedness" means and includes indebtedness 
    now existing or hereinafter arising, or incurred, including, without 
    limitation, the indebtedness evidence by the Note, including, all 
    principal and interest, together with all other indebtedness and costs 
    and expenses for which Borrower is responsible under this Agreement or 
    under any of the Related Documents.
    
    LENDER. The word "Lender" means Silicon Valley Bank, its successors and 
    assigns.
    
    LIQUID ASSETS. The words "Liquid Assets" mean Borrower's cash on hand 
    plus Borrower's readily marketable securities.
    
    LOAN. The word "Loan" or "Loans" means and includes without limitation 
    any and all commercial loans and financial accommodations from Lender to 
    Borrower, whether now or hereafter existing, and however evidenced, 
    including without limitation those loans and financial accomodations 
    described herein or described on any exhibit or schedule attached to 
    this Agreement from time to time.
    
    NOTE. The word "Note" means and includes without limitation Borrower's 
    promissory note or notes, if any, evidencing Borrower's Loan obligations 
    in favor of Lender, as well as any substitute, replacement or 
    refinancing note or notes therefor.
    
<PAGE>


                   AMENDED AND RESTATED BUSINESS LOAN AGREEMENT
                                  PAGE 2

    PERMITTED LIENS. The words "Permitted Liens" mean: (a) liens and 
    security interests securing Indebtedness owed by Borrower to Lender; 
    (b) liens for taxes, assessments, or similar charges either not yet due or
    being contested in good faith; (c) liens of materialmen, mechanics, 
    warehousemen, or carriers, or other like liens arising in the ordinary 
    course of business and securing obligations which are not yet 
    delinquent; (d) purchased money liens or purchase money security 
    interests upon or in any property acquired or held by Borrower in the 
    ordinary course of business to secure indebtedness outstanding on the 
    date of this Agreement or permitted to be incurred under the paragraph 
    of this Agreement titled "Indebtedness and Liens"; (e) liens and 
    security interests which, as of the date of this Agreement, have been 
    disclosed to and approved by the Lender in writing; and (f) those liens 
    and security interests which in the aggregate constitute an immaterial 
    and insignificant monetary amount with respect to the net value of 
    Borrower's assets.
    
    RELATED DOCUMENTS. The words "Related Documents" mean and include 
    without limitation all promissory notes, credit agreements, loan 
    agreements, environmental agreements, guaranties, security agreements, 
    mortgages, deeds of trust, and all other instruments, agreements and 
    documents, whether now or hereafter existing, executed in connection 
    with the Indebtedness.
    
    SECURITY AGREEMENT. The words "Security Agreement" mean and include 
    without limitation any agreements, promises, covenants, arrangements, 
    understandings or other agreements, whether created by law, contract, 
    or otherwise, evidencing, governing, representing, or creating a 
    Security Interest.
    
    SECURITY INTEREST. The words "Security Interest" mean and include 
    without limitation any type of collateral security, whether in the form 
    of a lien, charge, mortgage, deed or trust, assignment, pledge, chattel 
    mortgage, chattel trust, factor's lien, equipment trust, conditional 
    sale, trust receipt, lien or title retention contract, lease or 
    consignment intended as a security device, or any other security or 
    lien interest whatsoever, whether created by law, contract, or 
    otherwise.

    SARA. The word "SARA" means the Superfund Amendments and 
    Reauthorization Act of 1986 as now or hereafter amended.

    SUBORDINATED DEBT. The words "Subordinated Debt"  mean indebtedness and 
    liabilities of Borrower which have been subordinated by written 
    agreement to indebtedness owed by Borrower to Lender in form and 
    substance acceptable to Lender.
    
    TANGIBLE NET WORTH. The words "Tangible Net Worth" mean Borrower's 
    total assets excluding all intangible assets (i.e., goodwill, 
    trademarks, patents, copyrights, organizational expenses, and similar 
    intangible items, but including leaseholds and leasehold improvements) 
    less total Debt.
    
    WORKING CAPITAL. The words "Working Capital" mean Borrower's current 
    assets, excluding prepaid expenses, less Borrower's current liabilities.
    
CONDITIONS PRECEDENT TO EACH ADVANCE. Lender's obligation to make the 
initial Loan Advance and each subsequent Loan Advance under this Agreement 
shall be subject to the fulfillment to Lender's satisfaction of all of the 
conditions set forth in this Agreement and in the Related Documents.


    LOAN DOCUMENTS. Borrower shall provide to Lender in form satisfactory 
    to Lender the following documents for the Loan: (a) the Note, (b) 
    Security Agreements granting to Lender security interests in the 
    Collateral, (c) Financing Statements perfecting Lender's Security 
    Interests; (d) evidence of insurance as required below; and (e) any 
    other documents required under this Agreement or by Lender or its 
    counsel.

    BORROWER'S AUTHORIZATION. Borrower shall have provided in form and 
    substance satisfactory to Lender properly certified resolutions, duly 
    authorizing the execution and delivery of this Agreement, the Note and 
    the Related Documents, and such other authorizations and other 
    documents and instruments as Lender or its counsel, in their sole 
    discretion, may require.

    PAYMENT OF FEES AND EXPENSES. Borrower shall have paid to Lender all 
    fees, charges, and other expenses which are then due and payable as 
    specified in this Agreement or any Related Document.
    
    REPRESENTATIONS AND WARRANTIES. The representations and warranties set 
    forth in this Agreement, in the Related Documents, and in any document 
    or certificate delivered to Lender under this Agreement are true and 
    correct.
    
    NO EVENT OF DEFAULT. There shall not exist at the time of any advance a 
    condition which would constitute an Event of Default under this 
    Agreement.
    
REPRESENTATIONS AND WARRANTIES. Borrower represents and warrants to 
Lender, as of the date of this Agreement, as of the date of each 
disbursement of Loan proceeds, as of the date of any renewal, extension 
or modification of any Loan, and at all times any Indebtedness exists:
    
    ORGANIZATION. Borrower is a corporation which is duly organized, 
    validly existing, and in good standing under the laws of the State of 
    California and is validly existing and in good standing in all states 
    in which Borrower is doing business. Borrower has the full power and 
    authority to own its properties and to transact the businesses in which 
    it is presently engaged or presently proposes to engage. Borrower also 
    is duly qualified as a foreign corporation and is in good standing in 
    all states in which the failure to so qualify would have a material 
    adverse effect on its businesses or financial condition.
    
    AUTHORIZATION. The execution, delivery, and performance of this 
    Agreement and all Related Documents by Borrower, to the extent to be 
    executed, delivered or performed by Borrower, have been duly authorized 
    by all necessary action by Borrower, do not require the consent or 
    approval of any other person, regulatory authority or governmental 
    body; and do not conflict with, result in a violation of, or constitute 
    a default under (a) any provision of its articles of incorporation or 
    organization, or bylaws, or any agreement or other instrument binding 
    upon Borrower or (b) any law, governmental regulation, court decree, or 
    order applicable to Borrower.
    
    FINANCIAL INFORMATION. Each financial statement of Borrower supplied to 
    Lender truly and completely disclosed Borrower's financial condition as 
    of the date of the statement, and there has been no material adverse 
    change in Borrower's financial condition subsequent to the date of the 
    most recent financial statement supplied to Lender. Borrower has no 
    material contingent obligations as disclosed in such financial 
    statements.
    
    LEGAL EFFECT. This Agreement constitutes, and any instrument or 
    agreement required hereunder to be given by Borrower when delivered 
    will constitute, legal, valid and binding obligations of Borrower 
    enforceable against Borrower in accordance with their respective terms.
    
    PROPERTIES. Except as contemplated by this Agreement or as previously 
    disclosed in Borrower's financial statements or in writing to Lenders as 
    as accepted by Lender, and except for property tax liens for taxes not 
    presently due and payable. Borrower owns and has good title to all of 
    Borrower's

<PAGE>

                  AMENDED AND RESTATED BUSINESS LOAN AGREEMENT
                                     PAGE 3

     properties free and clear of all Security Interests, and has not 
     executed any security documents or financing statements relating to 
     such properties. All of Borrower's properties are titled in Borrower's 
     legal name, and Borrower has not used, or filed a financing statement 
     under, any other name for at least the last five (5) years.

     HAZARDOUS SUBSTANCES. The terms "hazardous waste," "hazardous 
     substance," "disposal," "release," and "threatened release", as used in 
     this Agreement, shall have the same meanings as set forth in the 
     "CERCLA," "SARA," the Hazardous Materials Transportation Act, 49 U.S.C. 
     Section 1801, et seq., the Resource Conservation and Recovery Act, 42 
     U.S.C. Section 6901, et seq., Chapters 6.5 through 7.7 of Division 20 
     of the California Health and Safety Code, Section 25100, et seq., or 
     other applicable state or Federal laws, rules, or regulations adopted 
     pursuant to any of the foregoing. Except as disclosed to and 
     acknowledged by Lender in writing, Borrower represents and warrants 
     that: (a) During the period of Borrower's ownership of the properties, 
     there has been no use, generation, manufacture, storage, treatment, 
     disposal, release or threatened release of any hazardous waste or 
     substance by any person on, under, about or from any of the properties. 
     (b) Borrower has no knowledge of, or reason to believe that there has 
     been (i) any use, generation, manufacture, storage, treatment, 
     disposal, release, or threatened release of any hazardous waste or 
     substance on, under, about or from the properties by any prior owners 
     or occupants of any of the properties, or (ii) any actual or threatened 
     litigation or claims of any kind by any person relating to such 
     matters. (c) Neither Borrower nor any tenant, contractor, agent or 
     other authorized user of any of the properties shall use, generate, 
     manufacture, store, treat, dispose of, or release any hazardous waste 
     or substance on, under, about or from any of the properties; and any 
     such activity shall be conducted in compliance with all applicable 
     federal, state, and local laws, regulations, and ordinances, including 
     without limitation those laws, regulations and ordinances described 
     above. Borrower authorizes Lender and its agents to enter upon the 
     properties to make such inspections and tests as Lender may deem 
     appropriate to determine compliance of the properties with this section 
     of the Agreement. Any inspections or tests made by Lender shall be at 
     Borrower's expense and for Lender's purposes only and shall not be 
     construed to create any responsibility or liability on the part of 
     Lender to Borrower or to any other person. The representations and 
     warranties contained herein are based on Borrower's due diligence in 
     investigating the properties for hazardous waste and hazardous 
     substances. Borrower hereby (a) releases and waives any future claims 
     against Lender for indemnity or contribution in the event Borrower 
     becomes liable for cleanup or other costs under any such laws, and (b) 
     agrees to indemnify and hold harmless Lender against any and all 
     claims, losses, liabilities, damages, penalties, and expenses which 
     Lender may directly or indirectly sustain or suffer resulting from a 
     breach of this section of the Agreement or as a consequence of any use, 
     generation, manufacture, storage, disposal, release or threatened 
     release occurring prior to Borrower's ownership or interest in the 
     properties, whether or not the same was or should have been known to 
     Borrower. The provisions of this section of the Agreement, including 
     the obligation to indemnify, shall survive the payment of the 
     Indebtedness and the termination or expiration of this Agreement and 
     shall not be affected by Lender's acquisition of any interest in any of 
     the properties, whether by foreclosure or otherwise.

     LITIGATION AND CLAIMS. No litigation, claim, investigation, 
     administrative proceeding or similar action (including those for unpaid 
     taxes) against Borrower is pending or threatened, and no other event 
     has occurred which may materially adversely affect Borrower's financial 
     condition or properties, other than litigation, claims, or other 
     events, if any, that have been disclosed to and acknowledged by Lender 
     in writing.

     TAXES. To the best of Borrower's knowledge, all tax returns and reports 
     of Borrower that are or were required to be filed, have been filed, and 
     all taxes, assessments and other governmental charges have been paid in 
     full, except those presently being or to be contested by Borrower in 
     good faith in the ordinary course of business and for which adequate 
     reserves have been provided.

     LIEN PRIORITY. Unless otherwise previously disclosed to Lender in 
     writing, Borrower has not entered into or granted any Security 
     Agreements, or permitted the filing or attachment of any Security 
     Interests on or affecting any of the Collateral directly or indirectly 
     securing repayment of Borrower's Loan and Note, that would be prior or 
     that may in any way be superior to Lender's Security Interests and 
     rights in and to such Collateral.

     BINDING EFFECT. This Agreement, the Note, all Security Agreements 
     directly or indirectly securing repayment of Borrower's Loan and Note 
     and all of the Related Documents are binding upon Borrower as well as 
     upon Borrower's successors, representatives and assigns, and are 
     legally enforceable in accordance with their respective terms.

     COMMERCIAL PURPOSES. Borrower intends to use the Loan proceeds solely 
     for business or commercial related purposes.

     EMPLOYEE BENEFIT PLANS. Each employee benefit plan as to which Borrower 
     may have any liability complies in all material respects with all 
     applicable requirements of law and regulations, and (i) no Reportable 
     Event nor Prohibited Transaction (as defined in ERISA) has occurred 
     with respect to any such plan, (ii) Borrower has not withdrawn from any 
     such plan or initiated steps to do so, (iii) no steps have been taken 
     to terminate any such plan, and (iv) there are no unfunded liabilities 
     other than those previously disclosed to Lender in writing.

     INVESTMENT COMPANY ACT. Borrower is not an "investment company" or a 
     company "controlled" by an "investment company", within the meaning of 
     the Investment Company Act of 1940, as amended.

     PUBLIC UTILITY HOLDING COMPANY ACT. Borrower is not a "holding 
     company", or a "subsidiary company" of a "holding company", or an 
     "affiliate" of a "holding company" or of a "subsidiary company" of a 
     "holding company", within the meaning of the Public Utility Holding 
     Company Act of 1935, as amended.

     REGULATIONS G, T, AND U. Borrower is not engaged principally, or as one 
     of its important activities, in the business of extending credit for 
     the purpose of purchasing or carrying margin stock (within the meaning 
     of Regulations G, T and U of the Board of Governors of the Federal 
     Reserve System).

     LOCATION OF BORROWER'S OFFICES AND RECORDS. Borrower's place of 
     business, or Borrower's Chief executive office, if Borrower has more 
     than one place of business, is located at 350 West Java Drive, 
     Sunnyvale, CA 94089. Unless Borrower has designated otherwise in 
     writing this location is also the office or offices where Borrower 
     keeps its records concerning the Collateral.

     INFORMATION. All information heretofore or contemporaneously herewith 
     furnished by Borrower to Lender for the purposes of or in connection 
     with this Agreement or any transaction contemplated hereby is, and all 
     information hereafter furnished by or on behalf of Borrower to Lender 
     will be, true and accurate in every material respect on the date as of 
     which such information is dated or certified; and none of such 
     information is or will be incomplete by omitting to state any material 
     fact necessary to make such information not misleading.

     CLAIMS AND DEFENSES. There are no defenses or counterclaims, offsets or 
     other adverse claims, demands or actions of any kind, personal 
     or otherwise, that Borrower, Grantor, or any Guarantor could assert 
     with respect to the Note, Loan, Indebtedness, this Agreement, or the 
     Related Documents.

<PAGE>
                  AMENDED AND RESTATED BUSINESS LOAN AGREEMENT
                                     PAGE 4

     SURVIVAL OF REPRESENTATIONS AND WARRANTIES. Borrower understands and 
     agrees that Lender, without independent investigation, is relying upon 
     the above representations and warranties in extending Loan Advances to 
     Borrower. Borrower further agrees that the foregoing representations 
     and warranties shall be continuing in nature and shall remain in full 
     force and effect until such time as Borrower's indebtedness shall be 
     paid in full, or until this Agreement shall be terminated in the manner 
     provided above, whichever is the last to occur.

AFFIRMATIVE COVENANTS. Borrower covenants and agrees with Lender that, while 
this Agreement is in effect, Borrower will:

     LITIGATION. Promptly inform Lender in writing of (a) all material 
     adverse changes in Borrower's financial condition, and (b) all existing 
     and all threatened litigation, claims, investigations, administrative 
     proceedings or similar actions affecting Borrower or any Guarantor 
     which could materially affect the financial condition of Borrower or 
     the financial condition of any Guarantor.

     FINANCIAL RECORDS. Maintain its books and records in accordance with 
     generally accepted accounting principles, applied on a consistent 
     basis, and permit Lender to examine and audit Borrower's books and 
     records at all reasonable times.

     FINANCIAL STATEMENTS. Furnish Lender with, as soon as available, but in 
     no event later than five (5) days upon becoming available, copies of 
     all statements, reports and notices sent or made available generally by 
     each Borrower to its security holders or to any holders of Subordinated 
     Debt and all reports on Form 10-K, 10-Q and 8-K filed with the 
     Securities and Exchange Commission. All financial reports required to 
     be provided under this Agreement shall be prepared in accordance with 
     generally accepted accounting principles, applied on a consistent 
     basis, and certified by Borrower as being true and correct.

     COMPLIANCE CERTIFICATE. Unless waived in writing by Lender, provide 
     Lender, at the same time the Financial Statements referred to above are 
     submitted to Lender, and at the time of each disbursement of Loan 
     proceeds, with a certificate executed by Borrower's chief financial 
     officer, or other officer or person acceptable to Lender, certifying 
     that the representations and warranties set forth in this Agreement are 
     true and correct as of the date of the certificate and further 
     certifying that, as of the date of the certificate, no Event of Default 
     exists under this Agreement.

     ACCOUNTS RECEIVABLE AND ACCOUNTS PAYABLE. Borrower shall provide to 
     Lender, prior to the initial advance under the line of credit facility, 
     and, thereafter, not later than twenty (20) days after the end of each 
     month, with an aged list of accounts receivable and accounts payable 
     (or 20 days after the end of each fiscal quarter if the outstanding 
     balance under the line of credit facility remains at zero ($0.00)). 
     Lender shall conduct audits at Lender's discretion. Borrower's deposit 
     account will be debited for the audit expense and a notification will 
     be mailed to Borrower.

     FINANCIAL COVENANTS. Borrower shall maintain, on a quarterly basis, 
     beginning quarter ending March 31, 1997, a minimum quick ratio of 1.25 
     to 1.00; a minimum tangible net worth of $38,000,000.00; a minimum 
     liquidity of 2 times the outstanding balance under Borrower's term loan 
     facilities; and a maximum total debt to tangible net worth ratio of 
     1.00 to 1.00. Furthermore, Borrower shall achieve quarterly 
     profitability, with an allowance for one quarterly loss in each fiscal 
     year not to exceed $750,000.00.

     ADDITIONAL INFORMATION. Furnish such additional information and 
     statements, lists of assets and liabilities, agings of receivables and 
     payables, inventory schedules, budgets, forecasts, tax returns, and 
     other reports with respect to Borrower's financial condition and 
     business operations as Lender may request from time to time.

     INSURANCE. Maintain fire and other risk insurance, public liability 
     insurance, and such other insurance as Lender may require with respect 
     to Borrower's properties and operations, in form, amounts, coverages 
     and with insurance companies reasonably acceptable to Lender. Borrower, 
     upon request of Lender, will deliver to Lender from time to time the 
     policies or certificates of insurance in form satisfactory to Lender, 
     including stipulations that coverages will not be cancelled or diminished 
     without at least ten (10) days' prior written notice to Lender. Each 
     insurance policy also shall include an endorsement providing that 
     coverage in favor of Lender will not be impaired in any way by any act, 
     omission or default of Borrower or any other person. In connection with 
     all policies covering assets in which Lender holds or is offered a 
     security interest for the Loans, Borrower will provide Lender with such 
     loss payable or other endorsements as Lender may require.

     INSURANCE REPORTS. Furnish to Lender, upon request of Lender, reports 
     on each existing insurance policy showing such information as Lender 
     may reasonably request, including without limitation the following: (a) 
     the name of the insurer; (b) the risks insured; (c) the amount of the 
     policy; (d) the properties insured; (e) the then current property 
     values on the basis of which insurance has been obtained, and the 
     manner of determining those values; and (f) the expiration date of the 
     policy. In addition, upon request of Lender (however not more often 
     than annually), Borrower will have an independent appraiser 
     satisfactory to Lender determine, as applicable, the actual cash value 
     or replacement cost of any Collateral. The cost of such appraisal shall 
     be paid by Borrower.

     OTHER AGREEMENTS. Comply with all terms and conditions of all other 
     agreements, whether now or hereafter existing, between Borrower and any 
     other party and notify Lender immediately in writing of any default in 
     connection with any other such agreements.

     LOAN PROCEEDS. Use all Loan proceeds solely for Borrower's business 
     operations, unless specifically consented to the contrary by Lender in 
     writing.

     TAXES, CHARGES AND LIENS. Pay and discharge when due all of its 
     indebtedness and obligations, including without limitation all 
     assessments, taxes, governmental charges, levies and liens, of every 
     kind and nature, imposed upon Borrower or its properties, income, or 
     profits, prior to the date on which penalties would attach, and all 
     lawful claims that, if unpaid, might become a lien or charge upon any 
     of Borrower's properties, income, or profits. Provided however, 
     Borrower will not be required to pay and discharge any such assessment, 
     tax, charge, levy, lien or claim so long as (a) the legality of the 
     same shall be contested in good faith by appropriate proceedings, and 
     (b) Borrower shall have established on its books adequate reserves with 
     respect to such contested assessment, tax, charge, levy, lien, or claim 
     in accordance with generally accepted accounting practices. Borrower, 
     upon demand of Lender, will furnish to Lender evidence of payment of 
     the assessments, taxes, charges, levies, liens and claims and will 
     authorize the appropriate governmental official to deliver to Lender at 
     any time a written statement of any assessments, taxes, charges, 
     levies, liens and claims against Borrower's properties, income, or 
     profits.

     PERFORMANCE. Perform and comply with all terms, conditions, and 
     provisions set forth in this Agreement and in the Related Documents in 
     a timely manner, and promptly notify Lender if Borrower learns of the 
     occurrence of any event which constitutes an Event of Default under this 
     Agreement or under any of the Related Documents.

<PAGE>


          AMENDED AND RESTATED BUSINESS LOAN AGREEMENT
                            PAGE 5

OPERATIONS. Maintain executive and management personnel with substantially 
the same qualifications and experience as the present executive and 
management personnel; provide written notice to Lender of any change in 
executive and management personnel; conduct its business affairs in a 
reasonable and prudent manner and in compliance with all applicable federal, 
state and municipal laws, ordinances, rules and regulations respecting its 
properties, charters, businesses and operations, including without 
limitation, compliance with the Americans With Disabilities Act and with all 
minimum funding standards and other requirements of ERISA and other laws 
applicable to Borrower's employee benefit plans.

ENVIRONMENTAL STUDIES. Promptly conduct and complete, at Borrower's expense, 
all such investigations, studies, samplings and testings as may be requested 
by Lender or any governmental authority relative to any substance defined as 
toxic or a hazardous substance under any applicable federal, state, or local 
law, rule, regulation, order or directive, or any waste or by-product thereof, 
at or affecting any property or any facility owned, leased or used by 
Borrower.

INSPECTION. Permit employees or agents of Lender at any reasonable time to 
inspect any and all Collateral for the Loan or Loans and Borrower's other 
properties and to examine or audit Borrower's books, accounts, and records 
and to make copies and memoranda of Borrower's books, accounts, and records. 
If Borrower now or at any time hereafter maintains any records (including 
without limitation computer generated records and computer software programs 
for the generation of such records) in the possession of a third party, 
Borrower, upon request of Lender, shall notify such party to permit Lender 
free access to such records at all reasonable times and to provide Lender 
with copies of any records it may request, all at Borrower's expense.

ENVIRONMENTAL COMPLIANCE AND REPORTS. Borrower shall comply in all respects 
with all environmental protection federal, state and local laws, statutes, 
regulations and ordinances; not cause or permit to exist, as a result of an 
intentional or unintentional action or omission on its part or on the part of 
any third party, on property owned and/or occupied by Borrower, any 
environmental activity where damage may result to the environment, unless 
such environmental activity is pursuant to and in compliance with the 
conditions of a permit issued by the appropriate federal, state or local  
governmental authorities; shall furnish to Lender promptly and in any event 
within thirty (30) days after receipt thereof a copy of any notice, summons, 
lien, citation, directive, letter or other communication from any 
governmental agency or instrumentality concerning any intentional or 
unintentional action or omission on Borrower's part in connection with any 
environmental activity whether or not there is damage to the environment 
and/or other natural resources.

ADDITIONAL ASSURANCES. Make, execute and deliver to Lender such promissory 
notes, mortgages, deeds of trust, security agreements, financing statements, 
instruments, documents and other agreements as Lender or its attorneys may 
reasonably request to evidence and secure the Loans and to perfect all 
Security Interests.

NEGATIVE COVENANTS. Borrower covenants and agrees with Lender that while this 
Agreement is in effect, Borrower shall not, without the prior written consent 
of Lender.

   INDEBTEDNESS AND LIENS. (a) Except for trade debt incurred in the normal 
   course of business and indebtedness to Lender contemplated by this 
   Agreement, create, incur or assume indebtedness for borrowed money, 
   including capital leases, (b) except as allowed as a Permitted Lien, sell, 
   transfer, mortgage, assign, pledge, lease, grant a security interest in, 
   or encumber any of Borrower's assets, or (c) sell with recourse any of 
   Borrower's accounts, except to Lender.

   CONTINUITY OF OPERATIONS. (a) Engage in any business activities 
   substantially different than those in which Borrower is presently engaged, 
   (b) cease operations, liquidate, merge, transfer, acquire or consolidate 
   with any other entity, change ownership, change its name, dissolve or 
   transfer or sell Collateral out of the ordinary course of business, (c) pay 
   any dividends on Borrower's stock (other than dividends payable in its 
   stock), provided, however that notwithstanding the foregoing, but only so 
   long as no Event of Default has occurred and is continuing or would result 
   from the payment of dividends, if Borrower is a "Subchapter S Corporation" 
   (as defined in the Internal Revenue Code of 1986, as amended), Borrower 
   may pay cash dividends on its stock to its shareholders from time to time 
   in amounts necessary to enable the shareholders to pay income taxes and make
   estimated income tax payments to satisfy their liabilities under federal and 
   state law which arise solely from their status as Shareholders of a 
   Subchapter S Corporation because of their ownership of shares of stock of 
   Borrower, or (d) purchase or retire any of Borrower's outstanding shares or 
   alter or amend Borrower's capital structure.

   LOANS, ACQUISITIONS AND GUARANTIES. (a) Loan, invest in or advance money 
   or assets, (b) purchase, create or acquire any interest in any other 
   enterprise or entity, or (c) incur any obligation as surety or guarantor 
   other than in the ordinary course of business.

CESSATION OF ADVANCES. If Lender has made any commitment to make any Loan to 
Borrower, whether under this Agreement or under any other agreement, Lender 
shall have no obligation to make Loan Advances or to disburse Loan proceeds 
if: (a) Borrower or any Guarantor is in default under the terms of this 
Agreement or any of the Related Documents or any other agreement that Borrower 
or any Guarantor has with Lender; (b) Borrower or any Guarantor becomes 
insolvent, files a petition in bankruptcy or similar proceedings, or is 
adjudged a bankrupt; (c) there occurs a material adverse change in Borrower's 
financial condition, in the financial condition of any Guarantor, or in the 
value of any Collateral securing any Loan; or (d) any Guarantor seeks, claims 
or otherwise attempts to limit, modify or revoke such Guarantor's guaranty of 
the Loan or any other loan with Lender.

BORROWING BASE FORMULA. Funds shall be advanced under the Line according to a 
borrowing base formula, as determined by Lender on a monthly basis, defined as 
follows: (a) the lessor of (i) $6,000,000.00 or (ii) the sum of eighty percent
(80%) of eligible domestic, Canadian and pre-approved accounts receivable and 
one hundred percent (100%) of accounts receivable supported by letters of 
credit (in form and substance acceptable to Lender), minus (b) the face amount 
of outstanding letters of credit (including drawn but unreimbursed letters of 
credit, minus (c) the Credit Card Sublimit. Eligible accounts receivable 
shall include, but not be limited to, those accounts outstanding less than 90 
days from the date of invoice, excluding government, non-approved foreign, 
contra, and intercompany accounts; and exclude accounts wherein 50% or more 
of the account is outstanding more than 90 days from the date of invoice. 
Except for Northern Telecom, which shall be allowed a concentration of up to 
40% of total accounts, any account which alone exceeds 25% of total accounts 
will be ineligible to the extend said account exceeds 25% of total accounts. 
Also exclude any credit balances which are aged past 90 days. Also ineligible 
are any accounts which Lender in its sole judgment excludes for valid credit 
reasons.

LETTERS OF CREDIT. Subject to the terms and conditions of this Agreement, 
Lender agrees to issue or cause to be issued letters of credit for the 
account of Borrower in an aggregate face amount not to exceed the lesser of 
(i) $6,000,000.00 or the Borrowing Base formula minus (ii) the Credit Card 
Sublimit, minus (iii) the then outstanding principal balance of the line of 
credit facility; PROVIDED that the face amount of outstanding letters of 
credit (including drawn but unreimbursed Letters of Credit) shall not in any 
case exceed One Million and 00/100 Dollars ($1,000,000.00). Each such letter 
of

<PAGE>

          AMENDED AND RESTATED BUSINESS LOAN AGREEMENT
                            PAGE 6

credit shall have an expiry date no later than one hundred eighty (180) days 
after the maturity date of the line of credit provided that Borrower's letter 
of credit reimbursement obligation shall be secured by cash on terms 
acceptable to Lender at any time after the maturity date if the term of the 
Agreement is not extended by Lender. All such letters of credit shall be, in 
form and substance, acceptable to Lender in its sole discretion and shall be 
subject to the terms and conditions of Lender's form of application and 
letter of credit agreement.

Borrower shall indemnify, defend and hold Lender harmless from any loss, 
cost, expense or liability, including, without limitation, reasonable 
attorneys' fees, arising out of or in connection with any letters of credit 
agreement.

Borrower may request that Lender issue a letter of credit payable in a 
currency other than United States Dollars. If a demand for payment is made 
under any such letter of credit, Lender shall treat such demand as an Advance 
to Borrower of the equivalent of the amount thereof (plus cable charges) in 
United States currency at the then prevailing rate of exchange in San 
Francisco, California, for sales of that other currency for cable transfer to 
the country of which it is the currency.

Upon the issuance of any letter of credit payable in a currency other than 
United States Dollars, Lender shall create a reserve (the "Letter of Credit 
Reserve") under the line of credit for letters of credit against fluctuations 
in currency exchange rates, in an amount equal to ten percent (10%) of the 
face amount of such letter of credit. The amount of such reserve may be 
amended by Lender from time to time to account for fluctuations in the 
exchange rate. The availability of funds under the line of credit shall be 
reduced by the amount of such reserve for so long as such letter of credit 
remains outstanding.

CREDIT CARD SUBLIMIT. Subject to the terms and conditions of the Loan 
Agreement, Lender agrees to issue or cause to be issued corporate credit 
cards for the executives of Borrower in an aggregate credit limit not to 
exceed One Hundred Thousand and 00/100 Dollars ($100,000.00). Such aggregate 
credit limit shall reduce the amount otherwise available to be borrowed under 
the line of credit, by a factor of 1.25 (i.e. in an amount equal to 
$125,000.00) (the "Credit Card Sublimit"). All such credit cards shall be 
subject to Lender's forms, in its sole discretion.

LOAN ADVANCES. Lender, in its discretion, will make Loans to Borrower, in 
amounts determined by Lender, up to the amounts defined and permitted in this 
Agreement and the Related Documents, including, but not limited to the Note 
or Notes executed by Borrower (the "Credit Limit"). Borrower's responsible 
for monitoring the total amount of Loans and Indebtedness outstanding from 
time to time, and Borrower shall not permit the same, at any time, to exceed 
the Credit Limit. If, at any time, the total of all outstanding Loans and 
Indebtedness exceed the Credit Limit. Borrower shall immediately pay the 
amount of the excess to Lender, without notice or demand.

AMENDMENT AND RESTATEMENT. This Amended and Restated Business Loan Agreement 
amends and restates the terms and conditions of that certain Business Loan 
Agreement dated May 21, 1992, as amended. The indebtedness continues to be 
secured by, among other things a Commercial Security Agreement dated March 
21, 1996, executed by Borrower.

EVENTS OF DEFAULT. Each of the following shall constitute an Event of Default 
under this Agreement:

   DEFAULT ON INDEBTEDNESS. Failure of Borrower to make any payment when due 
   on the Loans.

   OTHER DEFAULTS. Failure of Borrower or any Grantor to comply with or to 
   perform when due any other term, obligation, covenant or condition 
   contained in this Agreement or in any of the Related Documents, or 
   failure of Borrower to comply with or to perform any other term, 
   obligation, covenant or condition contained in any other agreement 
   between Lender and Borrower.

   DEFAULT IN FAVOR OF THIRD PARTIES. Should Borrower or any Grantor default 
   under any loan, extension of credit, security agreement, purchase or sales 
   agreement, or any other agreement, in favor of any other creditor or person 
   that may materially affect any of Borrower's property or Borrower's or any 
   Grantor's ability to repay the Loans or perform their respective obligations
   under this Agreement or any of the Related Documents.

   FALSE STATEMENTS. Any warranty, representation or statement made or 
   furnished to Lender by or on behalf of Borrower or any Grantor under this 
   Agreement or the Related Documents is false or misleading in any material 
   respect at the time made or furnished, or becomes false or misleading at any 
   time thereafter.

   DEFECTIVE COLLATERALIZATION. This Agreement or any of the Related 
   Documents ceases to be in full force and effect (including failure of any 
   Security Agreement to create a valid and perfected Security Interest) at any 
   time and for any reason.

   INSOLVENCY. The dissolution or termination of Borrower's existence as a 
   going business, the insolvency of Borrower, the appointment of a receiver for
   any part of Borrower's property, any assignment for the benefit of creditors,
   any type of creditor workout, or the commencement of any proceeding under any
   bankruptcy or insolvency laws by or against Borrower.

   CREDITOR OR FORFEITURE PROCEEDINGS. Commencement of foreclosure or 
   forfeiture proceedings, whether by judicial proceeding, self-help, 
   repossession or any other method, by any creditor of Borrower, any creditor
   of any Grantor against any collateral securing the indebtedness, or by any 
   governmental agency. This includes a garnishment, attachment, or levy on or
   of any of Borrower's deposit accounts with Lender.

   EVENTS AFFECTING GUARANTOR. Any of the preceding events occurs with 
   respect to any Guarantor of any of the indebtedness or any Guarantor dies or 
   becomes incompetent, or revokes or disputes the validity of, or liability 
   under, any Guaranty of the indebtedness.

   CHANGE IN OWNERSHIP. Any change in ownership of twenty-five percent (25%) 
   or more of the common stock of Borrower.

   ADVERSE CHANGE. A material adverse change occurs in Borrower's financial 
   condition, or Lender believes the prospect of payment or performance of the 
   indebtedness is impaired.

EFFECT OF AN EVENT OF DEFAULT. If any Event of Default shall occur, except 
where otherwise provided in this Agreement or the Related Documents, all 
commitments and obligations of Lender under this Agreement or the Related 
Documents or any other agreement immediately will terminate (including any 
obligation to make Loan Advances or disbursements), and, at Lender's option, 
all Indebtedness immediately will become due and payable, all without notice 
of any kind to Borrower, except that in the case of an Event of Default of 
the type described in the "Insolvency" subsection above, such acceleration 
shall be automatic and not optional. In addition, Lender shall have all the 
rights and remedies provided in the Related Documents or available at law, in 
equity, or

<PAGE>

                  AMENDED AND RESTATED BUSINESS LOAN AGREEMENT
                                    PAGE 7


otherwise. Except as may be prohibited by applicable law, all of Lender's 
rights and remedies shall be cumulative and may be exercised singularly or 
concurrently. Election by Lender to pursue any remedy shall not exclude 
pursuit of any other remedy, and an election to make expenditures or to take 
action to perform an obligation of Borrower or of any Grantor shall not 
affect Lender's right to declare a default and to exercise its rights and 
remedies.

DEFAULT RATE. Following an Event of Default, including failure to pay upon 
final maturity, Lender, at its option, may de one or both of the following: 
(i) increase the variable interest rate on the Note to five (5) percentage 
points over the otherwise effective interest rate, and (ii) add any unpaid 
accrued interest to the principal and such sum shall bear interest therefrom 
until paid in full.

MISCELLANEOUS PROVISIONS. The following miscellaneous provisions are a part 
of this Agreement:

     AMENDMENTS. This Agreement, together with any Related Documents, 
     constitutes the entire understanding and agreement of the parties as to 
     the matters set forth in this Agreement. No alteration of or amendment to 
     this Agreement shall be effective unless given in writing and signed by 
     the party or parties sought to be charged or bound by the alteration or 
     amendment.

     APPLICABLE LAW. This Agreement has been delivered to Lender and 
     accepted by Lender in the State of California. If there is a lawsuit, 
     Borrower agrees upon Lender's request to submit to the jurisdiction of 
     the courts of Santa Clara County, the State of California. Lender and 
     Borrower hereby waive the right to any jury trial in any action, 
     proceeding, or counterclaim brought by either Lender or Borrower against 
     the other. This Agreement shall be governed by and construed in 
     accordance with the laws of the State of California.

     CAPTION HEADINGS. Caption headings in this Agreement are for 
     convenience purposes only and are not to be used to interpret or define 
     the provisions of this Agreement.

     MULTIPLE PARTIES; CORPORATE AUTHORITY. All obligations of Borrower 
     under this Agreement shall be joint and several, and all references to 
     Borrower shall mean each and every Borrower. This means that each of the 
     persons signing below is responsible for all obligations in this 
     Agreement.

     CONSENT TO LOAN PARTICIPATION. Borrower agrees and consents to 
     Lender's sale or transfer, whether now or later, of one or more 
     participation interests in the Loans to one or more purchasers, whether 
     related or unrelated to Lender. Lender may provide, without any 
     limitation whatsoever, to any one or more purchasers, or potential 
     purchasers, any information or knowledge Lender may have about Borrower 
     or about any other matter relating to the Loan, and Borrower hereby 
     waives any rights to privacy it may have with respect to such matters. 
     Borrower additionally waives any and all notices of sale of participation
     interests, as well as all notices of any repurchase of such 
     participation interests. Borrower also agrees that the purchasers of any 
     such participation interests will be considered as the absolute owners 
     of such interests in the Loans and will have all the rights granted 
     under the participation agreement or agreements governing the sale of 
     such participation interests. Borrower further waives all rights of 
     offset or counterclaim that it may have now or later against Lender or 
     against any purchaser of such a participation interest and 
     unconditionally agrees that either Lender or such purchaser may enforce 
     Borrower's obligation under the Loans irrespective of the failure or 
     insolvency of any holder of any interest in the Loans. Borrower further 
     agrees that the purchaser of any such participation interests may 
     enforce its interests irrespective of any personal claims or defenses 
     that Borrower may have against Lender.

     BORROWER INFORMATION. Borrower consents to the release of 
     information on or about Borrower by Lender in accordance with any court 
     order, law or regulation and in response to credit inquiries concerning 
     Borrower.

     NON-LIABILITY OF LENDER. The relationship between Borrower and 
     Lender is a debtor and creditor relationship and not fiduciary in 
     nature, nor is the relationship to be construed as creating any 
     partnership or joint venture between Lender and Borrower. Borrower is 
     exercising its own judgment with respect to Borrower's business. All 
     information supplied to Lender is for Lender's protection only and no 
     other party is entitled to rely on such information. There is no duty 
     for Lender to review, inspect, supervise, or inform Borrower of any 
     matter with respect to Borrower's business. Lender and Borrower intend 
     that Lender may reasonably rely on all information supplied by Borrower 
     to Lender, together with all representations and warranties given by 
     Borrower to Lender, without investigation or confirmation by Lender and 
     that any investigation or failure to investigate will not diminish 
     Lender's right to so rely.

     NOTICE OF LENDER'S BREACH. Borrower must notify Lender in writing 
     of any breach of this Agreement or the Related Documents by Lender and 
     any other claim, cause of action or offset against Lender within thirty 
     (30) days after the occurrence of such breach or after the accrual of such 
     claim, cause of action or offset. Borrower waives any claim, cause of 
     action or offset for which notice is not given in accordance with this 
     paragraph. Lender is entitled to rely on any failure to give such notice.

     BORROWER INDEMNIFICATION. Borrower shall indemnify and hold Lender 
     harmless from and against all claims, costs, expenses, losses, damages, 
     and liabilities of any kind, including but not limited to attorneys' 
     fees and expenses, arising out of any matter relating directly or 
     indirectly to the indebtedness, whether resulting from internal disputes 
     of the Borrower, disputes between Borrower and any Guarantor, or whether 
     involving any third parties, or out of any other matter whatsoever 
     related to this Agreement or the Related Documents, but excluding any 
     claim or liability which arises as a direct result of Lender's gross 
     negligence or willful misconduct. This indemnity shall survive full 
     repayment and satisfaction of the indebtedness and termination of this 
     Agreement.

     COUNTERPARTS. This Agreement may be executed in multiple 
     counterparts, each of which, when so executed, shall be deemed an 
     original, but all such counterparts, taken together, shall constitute 
     one and the same Agreement.

     COSTS AND EXPENSES. Borrower agrees to pay upon demand all of 
     Lender's expenses, including without limitation attorneys' fees, 
     incurred in connection with the preparation, execution, enforcement, 
     modification and collection of this Agreement or in connection with the 
     Loans made pursuant to this Agreement. Lender may pay someone else to 
     help collect the Loans and to enforce this Agreement, and Borrower will 
     pay that amount. This includes, subject to any limits under applicable 
     law. Lender's attorneys' fees and Lender's legal expenses, whether or 
     not there is a lawsuit, including attorneys' fees for bankruptcy 
     proceedings (including efforts to modify or vacate any automatic stay or 
     injunction), appeals, and any anticipated post-judgment collection 
     services. Borrower also will pay any court costs, in addition to all 
     other sums provided by law.

     NOTICES. All notices required to be given under this Agreement 
     shall be given in writing, may be sent by telefacsimile, and shall be 
     effective when actually delivered or when deposited with a nationally 
     recognized overnight courier or deposited in the United States mail, 
     first class, postage prepaid, addressed to the party to whom the notice 
     is to be given at the address shown above. Any party may change its 
     address for notices under this Agreement by giving formal written notice 
     to the other parties, specifying that the purpose of the notice is to 
     change the party's address. To the extent

<PAGE>

                 AMENDED AND RESTATED BUSINESS LOAN AGREEMENT
                                  PAGE 8


     permitted by applicable law, if there is more than one Borrower, notice 
     to any Borrower will constitute notice to all Borrowers. For notice 
     purposes, Borrower will keep Lender informed at all times of Borrower's 
     current address(es).

     SEVERABILITY. If a court of competent jurisdiction finds any 
     provision of this Agreement to be invalid or unenforceable as to any 
     person or circumstance, such finding shall not render that provision 
     invalid or unenforceable as to any other persons or circumstances. If 
     feasible, any such offending provision shall be deemed to be modified to 
     be within the limits of enforceability or validity; however, if the 
     offending provision cannot be so modified, it shall be stricken and all 
     other provisions of this Agreement in all other respects shall remain 
     valid and enforceable.

     SUBSIDIARIES AND AFFILIATES OF BORROWER. To the extent the context 
     of any provisions of this Agreement makes it appropriate, including 
     without limitation any representation, warranty or covenant, the word 
     "Borrower" as used herein shall include all subsidiaries and affiliates 
     of Borrower. Notwithstanding the foregoing however, under no 
     circumstances shall this Agreement be construed to require Lender to 
     make any Loan or other financial accommodation to any subsidiary or 
     affiliate of Borrower.

     SUCCESSORS AND ASSIGNS. All covenants and agreements contained by 
     or on behalf of Borrower shall bind its successors and assigns and shall 
     inure to the benefit of Lender, its successors and assigns. Borrower 
     shall not, however, have the right to assign its rights under this 
     Agreement or any interest therein, without the prior written consent of 
     Lender.

     SURVIVAL. All warranties, representations, and covenants made by 
     Borrower in this Agreement or in any certificate or other instrument 
     delivered by Borrower to Lender under this Agreement shall be considered 
     to have been relied upon by Lender and will survive the making of the 
     Loan and delivery to Lender of the Related Documents, regardless of any 
     investigation made by Lender or on Lender's behalf.

     TIME IS OF THE ESSENCE. Time is of the essence in the performance 
     of this Agreement.

     WAIVER. Lender shall not be deemed to have waived any rights under 
     this Agreement unless such waiver is given in writing and signed by 
     Lender. No delay or omission on the part of Lender in exercising any 
     right shall operate as a waiver of such right or any other right. A 
     waiver by Lender of a provision of this Agreement shall not prejudice or 
     constitute a waiver of Lender's right otherwise to demand strict 
     compliance with that provision or any other provision of this Agreement. 
     No prior waiver by Lender, nor any course of dealing between Lender and 
     Borrower, or between Lender and any Grantor, shall constitute a waiver 
     of any of Lender's rights or of any obligations of Borrower or of any 
     Grantor as to any future transactions. Whenever the consent of Lender is 
     required under this Agreement, the granting of such consent by Lender in 
     any instance shall not constitute continuing consent in subsequent 
     instances where such consent is required, and in all cases such consent 
     may be granted or withheld in the sole discretion of Lender.

BORROWER ACKNOWLEDGES HAVING READ ALL THE PROVISIONS OF THIS AMENDED AND 
RESTATED BUSINESS LOAN AGREEMENT, AND BORROWER AGREES TO ITS TERMS. THIS 
AGREEMENT IS DATED AS OF FEBRUARY 11, 1997.


BORROWER:
Spectrian Corporation

By: /s/ Garrett A. Garrettson
    ------------------------------
Name: Garrett A. Garrettson
      ----------------------------
Title: President and CEO
       ---------------------------





LENDER:
Silicon Valley Bank

By: /s/ Michael J. Rose
    -----------------------------
Name: Michael J. Rose
      ---------------------------
Title: Vice President
       --------------------------

<PAGE>

                              AMENDED AND RESTATED

                                 PROMISSORY NOTE

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

BORROWER:   SPECTRIAN CORPORATION         LENDER:   SILICON VALLEY BANK
            350 WEST JAVA DRIVE                     3003 TASMAN DRIVE
            SUNNYVALE, CA  94089                    SANTA CLARA, CA  95054

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
<TABLE>
<CAPTION>

<S>                                <C>                      <C>
Principal Amount: $6,000,000.00    Initial Rate: 8.250%     Date of Note: February 11, 1997
</TABLE>

PROMISE TO PAY.  Spectrian Corporation ("Borrower") promises to pay to Silicon
Valley Bank ("Lender"), or order, in lawful money of the United States of
America, the principal amount of Six Million & 00/100 Dollars ($6,000,000.00) or
so much as may be outstanding, together with interest on the unpaid outstanding
principal balance of each advance.  Interest shall be calculated from the date
of each advance until repayment of each advance.

PAYMENT.  Borrower will pay this loan in one payment of all outstanding
principal plus all accrued unpaid interest on July 31, 1997.  In addition,
Borrower will pay regular monthly payments of accrued unpaid interest beginning
February 28, 1997, and all subsequent interest payments are due on the same day
of each month after that.  Interest on this Note is computed on a 365/360 simple
interest basis; that is, by applying the ratio of the annual interest rate over
a year of 360 days, multiplied by the outstanding principal balance, multiplied
by the actual number of days the principal balance is outstanding.  Borrower
will pay Lender at Lender's address shown above or at such other place as Lender
may designate in writing.  Unless otherwise agreed or required by applicable
law, payments will be applied first to accrued unpaid interest, then to
principal, and any remaining amount to any unpaid collection costs and late
charges.

VARIABLE INTEREST RATE.  The interest rate on this Note is subject to change
from time to time based on changes in an index which is Lender's Prime Rate (the
"Index").  This is the rate Lender charges, or would charge, on 90-day unsecured
loans to the most creditworthy corporate customers.  This rate may or may not be
the lowest rate available from Lender at any given time.  Lender will tell
Borrower the current index rate upon Borrower's request.  Borrower understands
that Lender may make loans based on other rates as well.  The interest rate
change will not occur more often than each time the prime rate is adjusted by
Silicon Valley Bank.  The Index currently is 8.250% per annum.  The interest
rate to be applied to the unpaid principal balance of this Note will be at a
rate equal to the index, resulting in an initial rate of 8.250% per annum.
NOTICE:  Under no circumstances will the interest rate on this Note be more than
the maximum rate allowed by applicable law.

PREPAYMENT.  Borrower may pay without penalty all or a portion of the amount
owed earlier than it is due.  Early payments will not, unless agreed to by
Lender in writing, relieve Borrower of Borrower's obligation to continue to make
payments of accrued unpaid interest.  Rather, they will reduce the principal
balance due.

DEFAULT.  Borrower will be in default if any of the following happens: (a)
Borrower fails to make any payment when due.  (b) Borrower breaks any promise
Borrower has made to Lender, or Borrower fails to comply with or to perform when
due any other term, obligation, covenant, or condition contained in this Note or
any agreement related to this Note, or in any other agreement or loan Borrower
has with Lender.  (c) Borrower defaults under any loan, extension of credit,
security agreement, purchase or sales agreement, or any other agreement, in
favor of any other creditor or person that may materially affect any of
Borrower's property or Borrower's ability to repay this Note or perform
Borrower's obligations under this Note or any of the Related Documents.  (d) Any
representation or statement made or furnished to Lender by Borrower or on
Borrower's behalf is false or misleading in any material respect either now or
at the time made or furnished.  (e) Borrower becomes insolvent, a receiver is
appointed for any part of Borrower's property, Borrower makes an assignment for
the benefit of creditors, or any proceeding is commenced either by Borrower or
against Borrower under any bankruptcy or insolvency laws.  (f) Any creditor
tries to take any of Borrower's property on or in which Lender has a lien or
security interest.  This includes a garnishment of any of Borrower's accounts
with Lender.  (g) Any guarantor dies or any of the other events described in
this default section occurs with respect to any guarantor of this Note.  (h) A
material adverse change occurs in Borrower's financial condition, or Lender
believes the prospect of payment or performance of the indebtedness is impaired.

LENDER'S RIGHTS.  Upon default, Lender may declare the entire unpaid principal
balance on this Note and all accrued unpaid interest immediately due, without
notice, and then Borrower will pay that amount.  Upon Borrower's failure to pay
all amounts declared due pursuant to this section, including failure to pay upon
final maturity, Lender, at its option, may also, if permitted under applicable
law, do one or both of the following:  (a) increase the variable interest rate
on this Note to 5.000 percentage points over the index, and (b) add any unpaid
accrued interest to principal and such sum will bear interest therefrom until
paid at the rate provided in this Note (including any increased rate).  Lender
may hire or pay someone else to help collect this Note if Borrower does not pay.
Borrower also will pay Lender that amount.  This includes, subject to any limits
under applicable law, Lender's attorneys' fees and Lender's legal expenses
whether or not there is a lawsuit, including attorneys' fees and legal expenses
for bankruptcy proceedings (including efforts to modify or vacate any automatic
stay or injunction), appeals, and any anticipated post-judgment collection
services.  Borrower also will pay any court costs, in addition to all other sums
provided by law.  This Note has been delivered to Lender and accepted by Lender
in the State of California.  If there is a lawsuit, Borrower agrees upon
Lender's request to submit to the jurisdiction of the courts of Santa Clara
County, the State of California.  Lender and Borrower hereby waive the right to
any jury trial in any action, proceeding, or counterclaim brought by either
Lender or Borrower against the other.  (Initial Here /s/ GAG)  This Note shall 
be governed by and construed in accordance with the laws of the State of
California.

LINE OF CREDIT.  This Note evidences a revolving line of credit.  Advances under
this Note, as well as directions for payment from Borrower's accounts, may be
requested orally or in writing by Borrower or by an authorized person.  Lender
may, but need not, require that all oral requests be confirmed in writing.
Borrower agrees to be liable for all sums either: (a) advanced in accordance
with the instructions of an authorized person or (b) credited to any of
Borrower's accounts with Lender.  The unpaid principal balance owing on this
Note at any time may be evidenced by endorsements on this Note or by Lender's
internal records, including daily computer print-outs.  Lender will have no
obligation to advance funds under this Note if: (a) Borrower or any guarantor is
in default under the terms of this Note or any agreement that Borrower or any
guarantor has with Lender, including any agreement made in connection with the
signing of this Note; (b) Borrower or any guarantor ceases doing business or is
insolvent; (c) any guarantor seeks, claims or otherwise attempts to limit,
modify or revoke such guarantor's guarantee of this Note or any other loan with
Lender; or (d) Borrower has applied funds provided pursuant to this Note for
purposes other than those authorized by Lender.

REQUEST TO DEBIT ACCOUNTS.  Borrower will regularly deposit funds received from
its business activities in accounts maintained by Borrower at Silicon Valley
Bank.  Borrower hereby requests and authorizes Lender to debit any of Borrower's
accounts with Lender, specifically, without limitation, Account Number
___________, for payments of principal and interest due on the loan and any
other obligations owing by Borrower to Lender.  Lender will notify Borrower of
all debits which Lender makes against Borrower's accounts.  Any such debits
against Borrower's accounts in no way shall be deemed a set-off.

AMENDED AND RESTATED BUSINESS LOAN AGREEMENT.  This Note is subject to and shall
be governed by all the terms and conditions of the Amended and Restated Business
Loan Agreement of even date herewith, between Lender and Borrower, as such
agreement may be amended from time to time, which Amended and Restated Business
Loan Agreement is incorporated herein by reference.

AMENDMENT AND RESTATEMENT.  This Amended and Restated Promissory Note amends and
restates the terms and conditions of the obligations of Borrower under that
certain Promissory Note dated May 21, 1992, as amended (the "Original Note")
from Borrower to Lender.  Nothing contained in

<PAGE>

                              AMENDED AND RESTATED
02-11-1997                       PROMISSORY NOTE                          Page 2
                                   (Continued)

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

this Amended and Restated Promissory Note shall be deemed to create or represent
the issuance of new indebtedness or exchange by Borrower of the Original Note
for a new Promissory Note.

GENERAL PROVISIONS.  Lender may delay or forgo enforcing any of its rights or
remedies under this Note without losing them.  Borrower and any other person who
signs, guarantees or endorses this Note, to the extent allowed by law, waive any
applicable statute of limitations, presentment, demand for payment, protest and
notice of dishonor.  Upon any change in the terms of this Note, and unless
otherwise expressly stated in writing, no party who signs this Note, whether as
maker, guarantor, accommodation maker or endorser, shall be released from
liability.  All such parties agree that Lender may renew or extend (repeatedly
and for any length of time) this loan, or release any party or guarantor or
collateral; or impair, fail to realize upon or perfect Lender's security
interest in the collateral; and take any other action deemed necessary by Lender
without the consent of or notice to anyone.  All such parties also agree that
Lender may modify this loan without the consent of or notice to anyone other
than the party with whom the modification is made.

PRIOR TO SIGNING THIS NOTE, BORROWER READ AND UNDERSTOOD ALL THE PROVISIONS OF
THIS NOTE, INCLUDING THE VARIABLE INTEREST RATE PROVISIONS.  BORROWER AGREES TO
THE TERMS OF THE NOTE AND ACKNOWLEDGES RECEIPT OF A COMPLETED COPY OF THE NOTE.

BORROWER:

Spectrian Corporation

By:  /s/  Garrett A. Garrettson
   -------------------------------------
   Name:  Garrett A. Garrettson         , Title:  President and CEO
        --------------------------------        ----------------------

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

<PAGE>

                     DISBURSEMENT REQUEST AND AUTHORIZATION

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


BORROWER:   SPECTRIAN CORPORATION         LENDER:   SILICON VALLEY BANK
            350 WEST JAVA DRIVE                     3003 TASMAN DRIVE
            SUNNYVALE, CA   94089                   SANTA CLARA, CA  95054

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

LOAN TYPE.  This is a Variable Rate (at SILICON VALLEY BANK PRIME RATE, making
an initial rate of 8.250%), Revolving Line of Credit Loan to a Corporation for
$6,000,000.00 due on July 31, 1997.

PRIMARY PURPOSE OF LOAN.  The primary purpose of this loan is for (please
initial):

     / / _____ Personal, Family, or Household Purposes or Personal Investment.

     /x/ _____ Business (Including Real Estate Investment).

SPECIFIC PURPOSE.  The specific purpose of this loan is: Working Capital.

DISBURSEMENT INSTRUCTIONS.  Borrower understands that no loan proceeds will be
disbursed until all of Lender's conditions for making the loan have been
satisfied.  Please disburse the loan proceeds of $6,000,000.00 as follows:

               Amount paid to Borrower directly:                      $0.00
               Undisbursed Funds:                             $6,000,000.00
                                                              -------------

               Note Principal:                                $6,000,000.00

FINANCIAL CONDITION.  BY SIGNING THIS AUTHORIZATION, BORROWER REPRESENTS AND
WARRANTS TO LENDER THAT THE INFORMATION PROVIDED ABOVE IS TRUE AND CORRECT AND
THAT THERE HAS BEEN NO MATERIAL ADVERSE CHANGE IN BORROWER'S FINANCIAL CONDITION
AS DISCLOSED IN BORROWER'S MOST RECENT FINANCIAL STATEMENT TO LENDER.  THIS
AUTHORIZATION IS DATED FEBRUARY 11, 1997.

BORROWER:

Spectrian Corporation

By:  /s/ Garrett A. Garrettson
   -------------------------------------
   Name: Garrett A. Garrettson          , Title: President and CEO
        --------------------------------        ----------------------

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

<PAGE>
                                   PROMISSORY NOTE
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

BORROWER:     SPECTRIAN CORPORATION              LENDER:   SILICON VALLEY BANK
              350 WEST JAVA DRIVE                          3003 TASMAN DRIVE
              SUNNYVALE, CA 94089                          SANTA CLARA, CA 95054

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
PRINCIPAL AMOUNT: $4,000,000.00  INITIAL RATE: 9.000%  DATE OF NOTE: 
                                                            FEBRUARY 11, 1997

PROMISE TO PAY.  Spectrian Corporation ("Borrower") promises to pay to Silicon
Valley Bank ("Lender"), or order, in lawful money of the United States of
America, the principal amount of Four Million & 00/100 Dollars ($4,000,000.00)
or so much as may be outstanding, together with interest on the unpaid
outstanding principal balance of each advance. Interest shall be calculated from
the date of each advance until repayment of each advance.

PAYMENT.  Borrower will pay this loan in accordance with the following payment
schedule:

    The Draw Period shall begin as of this date and shall end on October 31,
    1997 (the "Draw Period"). Borrower will pay regular monthly payments of all
    accrued unpaid Interest due as of each payment date, beginning February 28,
    1997 and all subsequent Interest payments will be due on the last day of
    each month thereafter. The outstanding principal balance on October 31,
    1997 will be payable in thirty-six (36) even payments of principal, plus
    interest due as of each payment date, beginning November 30, 1997 and all
    subsequent payments of principal and interest will be due on the last day
    of each month thereafter. The final payment, due on October 31, 2000, will 
    be for all outstanding principal plus all accrued interest not yet paid.

Interest on this Note is computed on a 365/360 simple interest basis; that is,
by applying the ratio of the annual interest rate over a year of 360 days,
multiplied by the outstanding principal balance, multiplied by the actual number
of days the principal balance is outstanding. Borrower will pay Lender at
Lender's address shown above or at such other place as Lender may designate in
writing. Unless otherwise agreed or required by applicable law, payments will be
applied first to accrued unpaid interest, then to principal, and any remaining
amount to any unpaid collection costs and late charges.

VARIABLE INTEREST RATE.  The interest rate on this Note is subject to change 
from time to time based on changes in an index which is Lender's Prime Rate 
(the "Index"). This is the rate Lender charges, or would charge, on 90-day 
unsecured loans to the most creditworthy corporate customers. This rate may 
or may not be the lowest rate available from Lender at any given time. Lender 
will tell Borrower the current Index rate upon Borrower's request. Borrower 
understands that Lender may make loans based on other rates as well. The 
interest rate change will not occur more often than each time the prime rate 
is adjusted by Silicon Valley Bank. THE INDEX CURRENTLY IS 8.250% PER ANNUM. 
THE INTEREST RATE TO BE APPLIED TO THE UNPAID PRINCIPAL BALANCE OF THIS NOTE 
WILL BE AT A RATE OF 0.750 PERCENTAGE POINTS OVER THE INDEX, RESULTING IN AN 
INITIAL RATE OF 9.000% PER ANNUM. NOTICE: Under no circumstances will the 
interest rate on this Note be more than the maximum rate allowed by 
applicable law.

PREPAYMENT.  Borrower agrees that all loan fees and other prepaid finance
charges are earned fully as of the date of the loan and will not be subject to
refund upon early payment (whether voluntary or as a result of default), except
as otherwise required by law. Except for the foregoing, Borrower may pay without
penalty all or a portion of the amount owed earlier than it is due. Early
payments will not, unless agreed to by Lender in writing, relieve Borrower of
Borrower's obligation to continue to make payments of accrued unpaid interest.
Rather, they will reduce the principal balance due.


DEFAULT.  Borrower will be in default if any of the following happens: (a) 
Borrower fails to make any payment when due. (b) Borrower breaks any promise 
Borrower has made to Lender, or Borrower fails to comply with or to perform 
when due any other term, obligation, covenant, or condition contained in this 
Note or any agreement related to this Note, or in any other agreement or loan 
Borrower has with Lender. (c) Borrower defaults under any loan, extension of 
credit, security agreement, purchase or sales agreement, or any other 
agreement, in favor of any other creditor or person that may materially 
affect any of Borrower's property or Borrower's ability to repay this Note or 
perform Borrower's obligations under this Note or any of the Related 
Documents. (d) Any representation or statement made or furnished to Lender by 
Borrower or on Borrower's behalf is false or misleading in any material 
respect either now or at the time made or furnished. (e) Borrower becomes 
insolvent, a receiver is appointed for any part of Borrower's property, 
Borrower makes an assignment for the benefit of creditors, or any proceeding 
is commenced either by Borrower or against Borrower under any bankruptcy or 
insolvency laws. (f) Any creditor tries to take any of Borrower's property on 
or in which Lender has a lien or security interest. This includes a 
garnishment of any of Borrower's accounts with Lender. (g) Any guarantor dies 
or any of the other events described in this default section occurs with 
respect to any guarantor of this Note. (h) A material adverse change occurs 
in Borrower's financial condition, or Lender believes the prospect of payment 
or performance of the Indebtedness is impaired.

LENDER'S RIGHTS.  Upon default, Lender may declare the entire unpaid 
principal balance on this Note and all accrued unpaid interest immediately 
due, without notice, and then Borrower will pay that amount. Upon Borrower's 
failure to pay all amounts declared due pursuant to this section, including 
failure to pay upon final maturity, Lender, at its option, any also, if 
permitted under applicable law, increase the variable interest rate on this 
Note to 5.750 percentage points over the Index. Lender may hire or pay 
someone else to help collect this Note if Borrower does not pay. Borrower 
also will pay Lender that amount. This includes, subject to any limits under 
applicable law, Lender's attorneys' fees and Lender's legal expenses whether 
or not there is a lawsuit, including attorneys' fees and legal expenses for 
bankruptcy proceedings (including efforts to modify or vacate any automatic 
stay or injunction), appeals, and any anticipated post-judgment collection 
services. Borrower also will pay any court costs, in addition to all other 
sums provided by law. THIS NOTE HAS BEEN DELIVERED TO LENDER AND ACCEPTED BY 
LENDER IN THE STATE OF CALIFORNIA. IF THERE IS A LAWSUIT, BORROWER AGREES 
UPON LENDER'S REQUEST TO SUBMIT TO THE JURISDICTION OF THE COURTS OF SANTA 
CLARA COUNTY, THE STATE OF CALIFORNIA. LENDER AND BORROWER HEREBY WAIVE THE 
RIGHT TO ANY JURY TRIAL IN ANY ACTION, PROCEEDING, OR COUNTERCLAIM BROUGHT BY 
EITHER LENDER OR BORROWER AGAINST THE OTHER. THIS NOTE SHALL BE GOVERNED BY 
AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF CALIFORNIA.

LINE OF CREDIT.  This Note evidences a straight line of credit through the draw
period. Once the total amount of principal has been advanced, Borrower is not
entitled to further loan advances. Advances under this Note, as well as
directions for payment from Borrower's accounts, may be requested orally or in
writing by Borrower or by an authorized person. Lender may, but need not,
require that all oral requests be confirmed in writing. Borrower agrees to be
liable for all sums either: (a) advanced in accordance with the instructions of
an authorized person or (b) credited to any of Borrower's accounts with Lender.
The unpaid principal balance owing on this Note at any time may be evidenced by
endorsements on this Note or by Lender's internal records, including daily
computer print-outs. Lender will have no obligation to advance funds under this
Note if: (a) Borrower or any guarantor is in default under the terms of this
Note or any agreement that Borrower or any guarantor has with Lender,
including any agreement made in connection with the signing of this Note; (b)
Borrower or any guarantor ceases doing business or is insolvent; (c) any
guarantor seeks, claims or otherwise attempts to limit, modify or revoke such
guarantor's guarantee of this Note or any other loan with Lender; or (d)
Borrower has applied funds provided pursuant to this Note for purposes other
than those authorized by Lender.

AMENDED AND RESTATED BUSINESS LOAN AGREEMENT.  This Note is governed by all 
the terms and conditions of the Amended and Restated Business Loan Agreement 
of even date herewith, between Borrower and Lender, as such agreement may be 
amended from time to time, which Amended and Restated Business Loan Agreement 
is incorporated herein by this reference.

PAYMENT OF LOAN FEE.  Borrower shall pay to Lender a fee in the amount of Twenty
Thousand and 00/100 Dollars ($20,000.00) plus all

<PAGE>

                                   PROMISSORY NOTE                        PAGE 2
                                     (CONTINUED)
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
out-of-pocket expenses.

REQUEST TO DEBIT ACCOUNTS.  Borrower will regularly deposit funds received 
from its business activities in accounts maintained by Borrower at Silicon 
Valley Bank. Borrower hereby requests and authorizes Lender to debit any of 
Borrower's accounts with Lender, including, without limitation, Account 
Number ___________ for payments of principal and interest due on the loan and 
any other obligations owing from Borrower to Lender. Lender will notify 
Borrower of all debits which Lender makes against Borrower's accounts. Any 
such debits against Borrower's accounts in no way shall be deemed a set-off.

ADVANCE RATE.  At any time from  the date hereof through the end of the Draw
Period, Borrower may request advances (each an "Advance" and collectively, the
"Advances") from Lender in an aggregate amount not to exceed the principal
amount of the Note. To evidence the Advances, Borrower shall deliver to Lender,
at the time of each Advance request, an invoice for the equipment to be
purchased. The Advances shall only be used to purchase equipment between
November 1, 1996 and October 31, 1997 and shall not exceed one hundred percent
(100%) of the invoice amount approved by Lender, excluding taxes, shipping and
installation expense.

GENERAL PROVISIONS.  Lender may delay or forgo enforcing any of its rights or
remedies under this Note without losing them. Borrower and any other person who
signs, guarantees or endorses this Note, to the extent allowed by law, waive any
applicable statute of limitations, presentment, demand for payment, protest and
notice of dishonor. Upon any change in the terms of this Note, and unless
otherwise expressly stated in writing, no party who signs this Note, whether as
maker, guarantor, accommodation maker or endorser, shall be released from
liability. All such parties agree that Lender may renew or extend (repeatedly
and for any length of time) this loan, or release any party or guarantor or
collateral; or impair, fail to realize upon perfect Lender's security interest
in the collateral; and take any other action deemed necessary by Lender without
the consent of or notice to anyone. All such parties also agree that Lender may
modify this loan without the consent or notice to anyone other than the party
with whom the modification is made.

PRIOR TO SIGNING THIS NOTE, BORROWER READ AND UNDERSTOOD ALL OF THE PROVISIONS
OF THIS NOTE, INCLUDING THE VARIABLE INTEREST RATE PROVISIONS. BORROWER AGREES
TO THE TERMS OF THE NOTE AND ACKNOWLEDGES RECEIPT OF A COMPLETED COPY OF THE
NOTE.

BORROWER:

SPECTRIAN CORPORATION

BY: /s/ Garrett A. Garrettson
   ------------------------------
   NAME: Garrett A. Garrettson, TITLE: President and CEO
        ----------------------        -------------------

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

<PAGE>

                 DISBURSEMENT REQUEST AND AUTHORIZATION

-------------------------------------------------------------------------------
-------------------------------------------------------------------------------

BORROWER:  SPECTRIAN CORPORATION               LENDER:  SILICON VALLEY BANK
           350 WEST JAVA DRIVE                          3003 TASMAN DRIVE
           SUNNYVALE, CA 94089                          SANTA CLARA, CA 95054

-------------------------------------------------------------------------------
-------------------------------------------------------------------------------

LOAN TYPE.  This is a Variable Rate (0.750% over SILICON VALLEY BANK PRIME 
RATE, making an initial rate of 9.000%), Non-Revolving Line of Credit Loan to 
a Corporation for $4,000,000.00 due on October 31, 2000.

PRIMARY PURPOSE OF LOAN.  The primary purpose of this loan is for:

     / / Personal, Family, or Household Purposes or Personal Investment.

     /X/ Business (Including Real Estate Investment).


SPECIFIC PURPOSE.  The specific purpose of this loan is:  Purchase of new 
equipment.

DISBURSEMENT INSTRUCTIONS.  Borrower understands that no loan proceeds will 
be disbursed until all of Lender's conditions for making the loan have been 
satisfied. Please disburse the loan proceeds of $4,000,000.00 as follows:

         Undisbursed Funds:                          $4,000,000.00
                                                     -------------
         Note Principal:                             $4,000,000.00

CHARGES PAID IN CASH.  Borrower has paid or will pay in cash as agreed the 
following charges:

         Prepaid Finance Charges Paid In Cash:          $20,000.00
             $20,000.00 Loan Fees

         Other Charges Paid In Cash:                        $35.00
             $35.00 UCC Search
                                                     -------------
         Total Charges Paid In Cash:                    $20,035.00

FINANCIAL CONDITION.  BY SIGNING THIS AUTHORIZATION, BORROWER REPRESENTS AND 
WARRANTS TO LENDER THAT THE INFORMATION PROVIDED ABOVE IS TRUE AND CORRECT 
AND THAT THERE HAS BEEN NO MATERIAL ADVERSE CHANGE IN BORROWER'S FINANCIAL 
CONDITION AS DISCLOSED IN BORROWER'S MOST RECENT FINANCIAL STATEMENT TO 
LENDER. THIS AUTHORIZATION IS DATED FEBRUARY 11, 1997.

BORROWER:

Spectrian Corporation

By:  /s/ Garrett A. Garrettson
    ------------------------------------------------
    Name:  Garrett A. Garrettson,  Title:  President and CEO
          -----------------------         -------------------

-------------------------------------------------------------------------------
-------------------------------------------------------------------------------

<PAGE>

                          CORPORATE RESOLUTION TO BORROW
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------

BORROWER: SPECTRIAN CORPORATION                  LENDER: SILICON VALLEY BANK
          350 WEST JAVA DRIVE                            3003 TASMAN DRIVE
          SUNNYVALE, CA 94089                            SANTA CLARA, CA 95054

-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
I, THE UNDERSIGNED SECRETARY OR ASSISTANT SECRETARY OF SPECTRIAN CORPORATION 
(THE "CORPORATION"), HEREBY CERTIFY that the Corporation is organized and 
existing under and by virtue of the laws of the State of California as a 
corporation for profit, with its principal office at 350 West Java Drive, 
Sunnyvale, CA 94089, and is duly authorized to transact business in the State 
of California.

I FURTHER CERTIFY that at a meeting of the Directors of the Corporation, duly 
called and held on 2/5/97, at which a quorum was present and voting, or by 
other duly authorized corporate action in lieu of a meeting, the following 
resolutions were adopted:

BE IT RESOLVED, that ANY ONE (1) of the following named officers, employees, 
or agents of this Corporation, whose actual signatures are shown below:

NAMES                    POSITIONS               ACTUAL SIGNATURES
-----                    ---------               -----------------
Garrett A. Garrettson    President and CEO       x /s/ Garrett A. Garrettson
---------------------    -----------------       ---------------------------
Steven J. Blair          Acting CFO/Secy         x /s/ Steven J. Blair
---------------------    -----------------       ---------------------------

acting for and on behalf of the Corporation and as its act and deed be, and 
they hereby are, authorized and empowered:

    BORROW MONEY. To borrow from time to time from Silicon Valley Bank 
    ("Lender"), on such terms as may be agreed upon between the Corporation 
    and Lender, such sum or sums of money as in their judgment should be 
    borrowed, without limitation.
    
    EXECUTE NOTES. To execute and deliver to Lender the promissory note or 
    notes, or other evidence of credit accomodations of the Corporation, on 
    Lender's forms, at such rates of interest and on such terms as may be 
    agreed upon, evidencing the sums of money so borrowed or any 
    indebtedness of the Corporation to Lender, and also to execute and 
    deliver to Lender one or more renewals, extensions, modifications, 
    refinancings, consolidations, or substitutions for one or more of the 
    notes, any portion of the notes, or any other evidence of credit 
    accomodations.
    
    GRANT SECURITY. To mortgage, pledge, transfer, endorse, hypothecate, or 
    otherwise encumber and deliver to Lender, as security for the payment 
    of any loans or credit accomodations so obtained, any promissory notes 
    so executed (including any amendments to or modifications, renewals, 
    and extensions of such promissory notes), or any other or further 
    indebtedness of the Corporation to lender at any time owing, however 
    the same may be evidenced, any property now or hereafter belonging to 
    the Corporation or in which the Corporation now or hereafter may have 
    an interest, including without limitation all real property and all 
    personal property (tangible or intangible) of the Corporation. Such 
    property may be mortgaged, pledged, transferred, endorsed, 
    hypothecated, or encumbered at the time such loans are obtained or such 
    indebtedness is incurred, or at any other time or times, and may be 
    either in addition to or in lieu of any property theretofore mortgaged, 
    pledged, transferred, endorsed, hypothecated, or encumbered.
    
    EXECUTE SECURITY DOCUMENTS. To execute and deliver to Lender the forms 
    of mortgage, deed of trust, pledge agreement, hypothecation agreement, 
    and other security agreements and financing statements which may be 
    required by Lender, and which shall evidence the terms and conditions 
    under and pursuant to which such liens and encumbrances, or any of 
    them, are given; and also to execute and deliver to Lender any other 
    written instruments, any chattel paper, or any other collateral, of any 
    kind or nature, which Lender may deem necessary or proper in connection 
    with or pertaining to the giving of the liens and encumbrances.
    
    NEGOTIATE ITEMS. To draw, endorse, and discount with Lender all drafts, 
    trade acceptances, promissory notes, or other evidences of indebtedness 
    payable to or belonging to the Corporation in which the Corporation may 
    have an interest, and either to receive cash for the same or to cause 
    such proceeds to be credited to the account of the Corporation with 
    Lender, or to cause such other disposition of the proceeds derived 
    therefrom as they may deem advisable.

    FURTHER ACTS. In the case of lines of credit, to designate additional 
    or alternate individuals as being authorized to request advances 
    thereunder, and in all cases, to do and perform such other acts and 
    things, to pay any and all fees and costs, and to execute and deliver 
    such other documents and agreements, INCLUDING AGREEMENTS WAIVING THE 
    RIGHT TO A TRIAL BY JURY, as they may in their discretion deem 
    reasonably necessary or proper in order to carry into effect the 
    provisions of these Resolutions.

BE IT FURTHER RESOLVED, that any and all acts authorized pursuant to 
these Resolutions and performed prior to the passage of these 
Resolutions are hereby ratified and approved, that these Resolutions 
shall remain in full force and effect and Lender may rely on these 
Resolutions until written notice of their revocation shall have been 
delivered to and received by Lender. Any such notice shall not affect 
any of the Corporation's agreements or commitments in effect at the 
time notice is given.

BE IT FURTHER RESOLVED, that the Corporation will notify Lender in 
writing at Lender's address shown above (or such other addresses as 
Lender may designate from time to time) prior to any (a) change in the 
name of the Corporation, (b) change in the assumed business name(s) of 
the Corporation, (c) change in the management of the Corporation, (d) 
change in the authorized signer(s), (e) conversion of the Corporation 
to a new or different type of business entity, or (f) change in any 
other aspect of the Corporation that directly or indirectly relates to 
any agreements between the Corporation and Lender. No change in the 
name of the Corporation will take effect until after Lender has been 
notified.

LETTERS OF CREDIT. To execute letter of credit applications and other 
related documents pertaining to Lender's issuance of letters of credit.

FOREIGN EXCHANGE CONTRACTS. To execute and deliver foreign exchange 
contracts, either spot or forward, from time to time, in such amounts 
as, in the judgment of an authorized signer or signers herein authorized.

ISSUE WARRANTS. To issue warrants to purchase Borrower's capital stock 
for such class, series and number and on such terms, as an officer of 
Borrower shall deem appropriate.

I FURTHER CERTIFY that the officers, employees, and agents named above 
are duly elected, appointed, or employed by or for the Corporation, as 
the case may be, and occupy the positions set opposite their respective 
names; that the foregoing Resolutions now stand of record on the books 
of the Corporation; and that the Resolutions are in full force and 
effect and have not been modified or revoked in any manner whatsoever. The 
Corporation has no corporate seal, and therefore, no seal is affixed to 
this certificate.

<PAGE>

02-11-1997          CORPORATE RESOLUTION T0 BORROW                     Page 2
                          (Continued)
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
IN TESTIMONY WHEREOF, I have hereunto set my hand on February 11, 1997 and 
attest that the signatures set opposite the names listed above are their 
genuine signatures.
                           
                                            CERTIFIED TO AND ATTESTED BY:
                                            x /s/ Steven J. Blair
                                              -------------------------------

                                            x 
                                              -------------------------------

NOTE: In case the Secretary or other certifying officer is designated by the 
foregoing resolutions as one of the signing officers, it is advisable to have 
this certificate signed by a second Officer or Director of the Corporation.

-------------------------------------------------------------------------------
-------------------------------------------------------------------------------

<PAGE>

[LOGO]

                             SILICON VALLEY BANK


                      PRO FORMA INVOICE FOR LOAN CHARGES


BORROWER:           Spectrian Corporation


LOAN OFFICER:       Mike Rose

DATE:               February 11, 1997


                    Loan Fee                 -- pd up
                    UCC Search               35.00

                    TOTAL FEE DUE           $35.00
                    -------------           ------



Please indicate the method of payment:

     { } A check for the total amount is attached.

     {X} Debit DDA# ____________ for the total amount.

     { } Loan proceeds


By:  /s/ PO Monahan
----------------------
  (Authorized Signer)




/s/ Michael Rose  3/3/97
------------------------------
Silicon Valley Bank     (Date)
Account Officer's Signature




<PAGE>


                        BORROWING BASE CERTIFICATE
                           COLLATERAL SCHEDULE

-------------------------------------------------------------------------------
Borrower: Spectrian Corporation             Lender: Silicon Valley Bank
          350 West Java Drive                       3003 Tasman Drive
          Sunnyvale, CA 94089                       Santa Clara, CA 95054
                         COMMITMENT AMOUNT: $6,000,000.00

-------------------------------------------------------------------------------

ACCOUNTS RECEIVABLE
-------------------
1. Accounts Receivable Book 
      Value as of                                                $
                  --------                                        -------------
                                        Non LC Supported      LC Supported

        a. Amounts over 90 days         $                     $
                                         ----------------      --------------
        b. Balance of 50% over 90       $                     $
           day accounts                  ----------------      --------------
        c. Credit balances over         $                     $
           90 days                       ----------------      --------------
        d. Non Approved Foreign         $                     $
           Accounts                      ----------------      --------------
        e. Governmental Accounts        $                     $
                                         ----------------      --------------
        f. Contra Accounts              $                     $
                                         ----------------      --------------
        g. Intercompany/Employee        $                     $
           Accounts                      ----------------      --------------
        h. Excess 25% Concentration*    $                     $
                                         ----------------      --------------
        i. Other (please explain on     $                     $
           reverse)                      ----------------      --------------
2.    TOTAL ACCOUNTS RECEIVABLE         $                     $
      DEDUCTIONS                         ----------------      --------------
3.    Eligible Accounts (Line #1        $                     $
      minus line #2                      ----------------      --------------
4(a). Funds Available (Advance          $
      Rate 80% Non LC Supported)         ----------------
4(b). Funds Available (Advance                                $ 
                                                                -------------
4(c). Funds Available (4(a) plus
      4(b))                                                      $
                                                                  -------------
* 40% Concentration allowed for 
      Northern Telecom

OTHER COLLATERAL (Explain: NONE)
----------------
5.    Other Collateral Value as of _______                 $
                                                            --------------
6.    Net value of Other Collateral (____%)                $
      (ineligible)                                          --------------
7.    Funds available: The lesser of $______ or            $
      _______% of Line #6                                   --------------
 
LOAN ACTIVITY
-------------
8.    Total Funds Available (Lesser Line #4(c) or          $
      $6,000,000.00)                                        --------------
9.    Loan Balance as of ______________                    $
                                                            --------------
10.  Outstanding under Sublimits (e.g. L/C,                $
     Credit Card) as of _________                           --------------
11.  RESERVE POSITION (Line #8 minus Line #9 and           $
     Line #10)                                              --------------

The undersigned represents and warrants that as of __________, 19_____, the 
foregoing is true, complete and correct, and that the information reflected in 
this Collateral Schedule complies with the representations and warranties set 
forth in the AMENDED AND RESTATED BUSINESS LOAN AGREEMENT, as may be amended 
from time to time, between the undersigned and Silicon Valley Bank February 11,
1997.
COMMENTS:

                                                ----------------------------
                                                        BANK USE ONLY
                                                
                                                Received By:
                                                            ---------------
                                                Date: 
                                                     --------------

                                                Reviewed By:
                                                            --------------
                                                Date:
                                                     -----------------
                                                ----------------------------

SPECTRIAN CORPORATION

By:
   ------------------------
Name:
     ----------------------
Title:
      ---------------------








<PAGE>

                          COMPLIANCE CERTIFICATE


To:     SILICON VALLEY BANK
        Credit Department
        3003 Tasman Drive
        Santa Clara, CA 95054


        From:    SPECTRIAN CORPORATION

The undersigned authorized Officer of SPECTRIAN CORPORATION, hereby certifies 
that in accordance with the terms and conditions of the Amended and Restated 
Business Loan Agreement the borrower is in complete compliance for the period 
ending __________________ of all required conditions and terms except as 
noted below. Attached herewith are the required documents supporting the 
above certification. The Officer further certifies that these are prepared in 
accordance with Generally Accepted Accounting Principles (GAAP) and are 
consistent from one period to the next except as explained in an accompanying 
letter or footnotes.

 PLEASE INDICATE COMPLIANCE STATUS BY CIRCLING YES/NO UNDER "COMPLIES" COLUMN.

REPORTING COVENANT           REQUIRED                                 COMPLIES
------------------           --------                                 --------
10K, 10Q and 8K + CC         Within five (5) days after filing w/SEC   YES/NO
A/R, A/P + BBC               Monthly, within 20 days*                  YES/NO

*If line of credit is at zero ($0.00) balance, then quarterly, within 20 days.

FINANCIAL COVENANT           REQUIRED              ACTUAL          COMPLIES
------------------           --------              ------          --------

MAINTAIN ON A QUARTERLY BASIS (UNLESS OTHERWISE NOTED):

Minimum Quick Ratio          1.25:1.00             ____:1.00         YES/NO
Max. Debt/TNW                1.00:1.00             ____:1.00         YES/NO
Min. Tangible Net Worth      $38,000,000.00        $__________       YES/NO
Min. Liquidity               2.00 X outstanding
                             term loan balance     $__________       YES/NO
Profitability                Quarterly basis       $__________       YES/NO
                             With allowance for one quarterly loss not to 
                             exceed $750,000.00 in any fiscal year.

COMMENTS REGARDING EXCEPTIONS:

For purposes of the foregoing, Liquidity shall be defined as unrestricted 
cash (and equivalents) plus the net available under Borrower's accounts 
receivable line of credit facility.

Very truly yours,

SPECTRIAN CORPORATION

By: ______________________________

Name: ____________________________

Title: ___________________________


                                                  ______________________________

                                                         BANK USE ONLY

                                                    RECEIVED BY: _____________

                                                    DATE: ________________

                                                    REVIEWED BY: _____________

                                                    COMPLIANCE STATUS: YES/NO
                                                  ______________________________