UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
 Washington, D.C. 20549
 
 FORM 11-K
 FOR ANNUAL REPORTS OF EMPLOYEE STOCK
PURCHASE, SAVINGS AND SIMILAR PLANS PURSUANT TO
SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 þ
    
    ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 For the fiscal year ended December 31, 2010
 OR
 o
    
    TRANSITION REPORT PURSUANT TO SECTION 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934
 Commission file number: 001-31650
 MINDSPEED TECHNOLOGIES, INC.
RETIREMENT SAVINGS PLAN
 MINDSPEED TECHNOLOGIES, INC.
  4000 MacArthur Boulevard, East Tower
Newport Beach, California 92660-3095




---



##### 



MINDSPEED TECHNOLOGIES, INC.
RETIREMENT SAVINGS PLAN
 Annual Report on Form 11-K
 Index
 PageReport of Independent Registered Public Accounting Firm
    
    3Statements of Net Assets Available for Benefits  December 31, 2010 and 2009
    
    4Statements of Changes in Net Assets Available for Benefits  Years Ended December
31, 2010 and 2009
    
    5Notes to Financial Statements
    
    6SUPPLEMENTAL SCHEDULE*Schedule H, Line 4i  Schedule of Assets (Held at End of Year)  December 31, 2010
    
    12
 
 *
    
    Other schedules are omitted because they are not required or are not applicable
based on disclosure requirements of the Employee Retirement Income Security Act of
1974 and regulations issued by the Department of Labor. 2




---



##### 



REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
 
      
 3




---



##### 



MINDSPEED TECHNOLOGIES, INC. RETIREMENT SAVINGS PLAN
 STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS
 December 31,2010
    
    
    2009ASSETSCash
    
    $
    269,802
    
    
    $
    237,757Investments, at fair value
    
    
    34,117,972
    
    
    
    26,636,216Total assets held for investment
    
    
    34,387,774
    
    
    
    26,873,973ReceivablesEmployee contributions
    
    
    123,163
    
    
    
    120,426Employer contributions
    
    
    44,441
    
    
    
    45,570Notes receivable from participants
    
    
    738,136
    
    
    
    522,102Other receivables
    
    
    9,869
    
    
    
    65Total receivables
    
    
    915,609
    
    
    
    688,163Total assets
    
    
    35,303,383
    
    
    
    27,562,136LIABILITIESOther
    
    
    3,200
    
    
    
    908Total liabilities
    
    
    3,200
    
    
    
    908NET ASSETS AVAILABLE FOR BENEFITS, AT FAIR VALUE
    
    
    35,300,183
    
    
    
    27,561,228Adjustments from fair value to contract value for fully benefit-responsive
investment contracts
    
    
    (20,526
    )
    
    
    37,842NET ASSETS AVAILABLE FOR BENEFITS
    
    $
    35,279,657
    
    
    $
    27,599,070
  4




---



##### 



MINDSPEED TECHNOLOGIES, INC. RETIREMENT SAVINGS PLAN
 STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
 Years Ended December 31,2010
    
    
    2009ADDITIONS TO NET ASSETS ATTRIBUTED TO:Investment incomeNet appreciation in fair value of investments
    
    $
    5,210,024
    
    
    $
    9,366,564Interest and dividends
    
    
    445,310
    
    
    
    339,2145,655,334
    
    
    
    9,705,778ContributionsParticipants
    
    
    2,913,649
    
    
    
    2,942,364Company
    
    
    1,176,188
    
    
    
    1,215,852Rollovers
    
    
    83,418
    
    
    
    312,3544,173,255
    
    
    
    4,470,570Total additions
    
    
    9,828,589
    
    
    
    14,176,348DEDUCTIONS FROM NET ASSETS ATTRIBUTED TO:Benefits paid to participants
    
    
    2,130,329
    
    
    
    1,512,561Administrative expenses
    
    
    17,673
    
    
    
    17,732Total deductions
    
    
    2,148,002
    
    
    
    1,530,293NET INCREASE IN NET ASSETS AVAILABLE FOR BENEFITS
    
    
    7,680,587
    
    
    
    12,646,055NET ASSETS AVAILABLE FOR BENEFITS, beginning of year
    
    
    27,599,070
    
    
    
    14,953,015NET ASSETS AVAILABLE FOR BENEFITS, end of year
    
    $
    35,279,657
    
    
    $
    27,599,070
  5




---



##### 



MINDSPEED TECHNOLOGIES, INC. RETIREMENT SAVINGS PLAN
NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2010 AND 2009
 NOTE 1  DESCRIPTION OF THE PLAN AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
  General
 Eligibility
 Contributions
  Participant Accounts
 1 2
 Vesting
 6




---



##### 



Forfeitures
 Administrative Expenses
 Payment of Benefits
 1 2
 Notes Receivable from Participants
 Plan AccountingDefined Contribution Plans
 Non-Distributed Benefits
 Non-Discrimination Testing for Employee and Employer Contributions
 Investment Valuation and Income Recognition
   Accounting Estimates
 7




---



##### 



New Accounting Pronouncements Improving Disclosures about Fair Value Measurements (Topic 820) Fair Value Measurements and
Disclosures
 Plan AccountingDefined Contribution Pension
Plans (Topic 962)- Reporting Loans to Participants by Defined Contribution Pension Plans
 Amendments to Achieve Common Fair Value Measurement
and Disclosure Requirements in U.S. GAAP and International Financial Reporting Standards (Topic
820)Fair Value Measurement
 NOTE 2  INVESTMENTS
  December 31,2010
    
    
    2009PARTICIPANT DIRECTED INVESTMENTSCommon/collective trust:Fully benefit-responsive investment contract:Fidelity Managed Income Portfolio Trust
    
    $
    2,524,354
    *
    
    $
    2,035,035
    *Mutual funds:Fidelity Diversified International Stock Fund
    
    
    1,914,568
    *
    
    
    1,786,541
    *T. Rowe Price Emerging Markets Stock Fund
    
    
    2,371,279
    *
    
    
    1,740,392
    *Spartan U.S. Equity Index Fund
    
    
    2,247,636
    *
    
    
    1,722,441
    *Baron Growth Fund
    
    
    2,037,380
    *
    
    
    1,542,332
    *Fidelity Mid Cap Stock Fund
    
    
    1,781,220
    *
    
    
    1,333,041
    *Fidelity U.S. Bond Index Fund
    
    
    1,591,267
    *
    
    
    1,275,121
    *Fidelity Low-Priced Stock Fund
    
    
    1,787,913
    *
    
    
    1,340,157
    *Fidelity Growth Company
    
    
    1,829,039
    *
    
    
    1,149,452
    *Other
    
    
    8,964,807
    
    
    
    6,419,680Total mutual funds
    
    
    24,525,109
    
    
    
    18,309,157Mindspeed Technologies, Inc. common stock
    
    
    7,068,509
    *
    
    
    6,292,024
    *Interest bearing cash
    
    
    269,802
    
    
    
    237,757$
    34,387,774
    
    
    $
    26,873,973
 
 *
    
    Represents 5% or more of the Plans net assets 8




---



##### 



Years Ended December 31,2010
    
    
    2009Mindspeed Technologies, Inc. common stock
    
    $
    839,376
    
    
    $
    5,616,761Common/collective trust
    
    
    31,782
    
    
    
    32,221Mutual funds
    
    
    4,338,866
    
    
    
    3,717,582$
    5,210,024
    
    
    $
    9,366,564
  NOTE 3  PLAN TERMINATION
  NOTE 4  TAX STATUS
   NOTE 5  RISKS AND UNCERTAINTIES
  NOTE 6  RELATED PARTY TRANSACTIONS
  9




---



##### 



NOTE 7  FAIR VALUE MEASUREMENTS
   Mutual Funds and the Mindspeed Technologies Common Stock Fund:
   Common/Collective Investment Trusts:
    10




---



##### 



December 31, 2010
    
    Level 1
    
    
    Level 2
    
    
    TotalMutual fundsBlended funds
    
    $
    6,572,489
    
    
    $
    
    
    
    $
    6,572,489Large cap
    
    
    5,291,714
    
    
    
    
    
    
    
    5,291,714International
    
    
    4,285,847
    
    
    
    
    
    
    
    4,285,847Mid cap
    
    
    3,767,152
    
    
    
    
    
    
    
    3,767,152Bond funds
    
    
    2,570,527
    
    
    
    
    
    
    
    2,570,527Small cap
    
    
    2,037,380
    
    
    
    
    
    
    
    2,037,380Mindspeed Technologies Common
Stock Fund
    
    
    7,068,509
    
    
    
    
    
    
    
    7,068,509Collective trusts
    
    
    
    
    
    
    2,524,354
    
    
    
    2,524,354Investments, at fair value
    
    $
    31,593,618
    
    
    $
    2,524,354
    
    
    $
    34,177,972
 December 31, 2009
    
    Level 1
    
    
    Level 2
    
    
    TotalMutual fundsBlended funds
    
    $
    4,500,369
    
    
    $
    
    
    
    $
    4,500,369Large cap
    
    
    3,816,054
    
    
    
    
    
    
    
    3,816,054International
    
    
    3,526,933
    
    
    
    
    
    
    
    3,526,933Mid cap
    
    
    2,825,746
    
    
    
    
    
    
    
    2,825,746Bond funds
    
    
    2,097,723
    
    
    
    
    
    
    
    2,097,723Small cap
    
    
    1,542,332
    
    
    
    
    
    
    
    1,542,332Mindspeed Technologies Common
Stock Fund
    
    
    6,292,024
    
    
    
    
    
    
    
    6,292,024Collective trusts
    
    
    
    
    
    
    2,035,035
    
    
    
    2,035,035Investments, at fair value
    
    $
    24,601,181
    
    
    $
    2,035,035
    
    
    $
    26,636,216
 NOTE 8  RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500
  December 31,2010Net assets available for benefits per the financial statements
    
    $
    35,279,657Less: Employee contribution related receivable
    
    
    (123,163
    )Less: Employer contribution related receivable
    
    
    (44,441
    )Less: Adjustment from fair value to contract value for fully
benefit-responsive
investment contracts
    
    
    20,526Net assets available for benefits per the Form 5500
    
    $
    35,132,579
  Year EndedDecember 31,2010Total investment income per the financial statements
    
    $
    5,655,334Less: Change in adjustment from fair value to contract value
for fully benefit-responsive investment contracts
    
    
    58,367Total investment income per the Form 5500
    
    $
    5,713,701
 11




---



##### 



MINDSPEED TECHNOLOGIES, INC. RETIREMENT SAVINGS PLAN  SUPPLEMENTAL SCHEDULE  DECEMBER 31, 2010  FEIN: 01-0616769  PLAN NUMBER: 001
 SCHEDULE H, LINE 4i  SCHEDULE OF ASSETS  HELD AT END OF YEAR
 (c) Description ofInvestment Including(b) Identity of Issue,
    
    Maturity Date, Rate ofBorrower,
    
    Interest, Collateral,
    
    
    
    
    
    (e) Current(a)
    
    Lessor or Similar Party
    
    Par or Maturity Value
    
    (d) Cost
    
    
    Value*
    
    Fidelity Investments
    
    Interest bearing cash
    
    
    
    **
    
    $
    269,802*
    
    Fidelity Investments
    
    Fidelity Fund
    
    
    
    **
    
    
    333,448*
    
    Fidelity Investments
    
    Fidelity Growth Company Fund
    
    
    
    **
    
    
    1,829,039*
    
    Fidelity Investments
    
    Fidelity OTC Portfolio Fund
    
    
    
    **
    
    
    395,958*
    
    Fidelity Investments
    
    Fidelity Low-Priced Stock Fund
    
    
    
    **
    
    
    1,787,913*
    
    Fidelity Investments
    
    Fidelity Diversified International Fund
    
    
    
    **
    
    
    1,914,568*
    
    Fidelity Investments
    
    Fidelity Mid-Cap Stock Fund
    
    
    
    **
    
    
    1,781,220*
    
    Fidelity Investments
    
    Fidelity Freedom Income Fund
    
    
    
    **
    
    
    298,521*
    
    Fidelity Investments
    
    Fidelity Freedom 2000 Fund
    
    
    
    **
    
    
    233,376*
    
    Fidelity Investments
    
    Fidelity Freedom 2005 Fund
    
    
    
    **
    
    
    25,947*
    
    Fidelity Investments
    
    Fidelity Freedom 2010 Fund
    
    
    
    **
    
    
    408,181*
    
    Fidelity Investments
    
    Fidelity Freedom 2015 Fund
    
    
    
    **
    
    
    637,984*
    
    Fidelity Investments
    
    Fidelity Freedom 2020 Fund
    
    
    
    **
    
    
    1,119,523*
    
    Fidelity Investments
    
    Fidelity Freedom 2025 Fund
    
    
    
    **
    
    
    1,133,832*
    
    Fidelity Investments
    
    Fidelity Freedom 2030 Fund
    
    
    
    **
    
    
    1,013,457*
    
    Fidelity Investments
    
    Fidelity Freedom 2035 Fund
    
    
    
    **
    
    
    1,204,142*
    
    Fidelity Investments
    
    Fidelity Freedom 2040 Fund
    
    
    
    **
    
    
    307,966*
    
    Fidelity Investments
    
    Fidelity Freedom 2045 Fund
    
    
    
    **
    
    
    66,739*
    
    Fidelity Investments
    
    Fidelity Freedom 2050 Fund
    
    
    
    **
    
    
    122,819*
    
    Fidelity Investments
    
    Fidelity Intermediate Government Income Fund
    
    
    
    **
    
    
    979,260*
    
    Fidelity Investments
    
    Fidelity Managed Income Portfolio Trust
    
    
    
    **
    
    
    2,524,354*
    
    Fidelity Investments
    
    Fidelity U.S. Bond Index Fund
    
    
    
    **
    
    
    1,591,267T. Rowe Price
    
    T. Rowe Price Emerging Markets Stock Fund
    
    
    
    **
    
    
    2,371,279Baron Funds
    
    Baron Growth Fund
    
    
    
    **
    
    
    2,037,380Spartan
    
    Spartan U.S. Equity Index Fund
    
    
    
    **
    
    
    2,247,636Virtus
    
    Virtus Mid-Cap Value Fund Class A
    
    
    
    **
    
    
    198,020Van Kampen
    
    Van Kampen Growth & Income Fund Class A
    
    
    
    **
    
    
    485,634*
    
    Mindspeed Technologies, Inc.
    
    Common stock, shares
    
    
    
    **
    
    
    7,068,509Total investments, at fair value
    
    
    
    
    
    $
    34,387,774*
    
    Notes receivable from participants
    
    Interest rates ranging from 4.25% to 9.25%
    
    $
    
    
    
    $
    738,136
 
 *
    
    Party-in-interest for which a statutory exception exists**
    
    Historical cost information is not required for participant directed investment funds  12




---



##### 



SIGNATURE
  MINDSPEED TECHNOLOGIES, INC. RETIREMENT SAVINGS
PLAN
MINDSPEED TECHNOLOGIES, INC., PLAN 
ADMINISTRATORDate: June 27, 2011
    By
    /s/  ALLISON GARCIAAllison GarciaSenior Vice President, Human Resources, of  Mindspeed
Technologies, Inc. 13




---



##### 



EXHIBIT INDEX
 23.1
    
    Consent of Independent Registered Public Accounting Firm
 14