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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
 Washington, D.C. 20549
 
 FORM 11-K
 þ
    
    ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 For the fiscal year ended December 31, 2006
 OR
 o
    
    TRANSITION REPORT PURSUANT TO SECTION 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934
 Commission file number: 000-50499
 MINDSPEED TECHNOLOGIES, INC.
RETIREMENT SAVINGS PLAN
 MINDSPEED TECHNOLOGIES, INC.
  4000 MacArthur Boulevard, East Tower
Newport Beach, California 92660-3095




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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, 2006 and 2005
    
    
    4Statements of Changes in Net Assets Available for Benefits  Years Ended December
31, 2006 and 2005
    
    
    5Notes to Financial Statements
    
    
    6SUPPLEMENTAL SCHEDULE*
Schedule H, Line 4i  Schedule of Assets (Held at End of Year)  December 31, 2006
    
    
    10Signature
    
    
    11Exhibit Index
    
    
    12EXHIBIT 23
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Report of Independent Registered Public Accounting Firm
 
      
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##### Table of Contents



MINDSPEED TECHNOLOGIES, INC. RETIREMENT SAVINGS PLAN
 STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS
 December 31,2006
    
    
    2005ASSETSInvestments, at fair value (Note 2)
    
    $
    19,839,779
    
    
    $
    15,062,721ReceivablesOther
    
    
    531
    
    
    
    21,288Total assets
    
    
    19,840,310
    
    
    
    15,084,009LIABILITY
    
    
    
    
    
    
    NET ASSETS AVAILABLE FOR BENEFITS AT FAIR VALUE
    
    
    19,840,310
    
    
    
    15,084,009Adjustments from fair value to contract value for fully benefit-responsive
investment contracts
    
    
    18,045
    
    
    
    18,854NET ASSETS AVAILABLE FOR BENEFITS
    
    $
    19,858,355
    
    
    $
    15,102,863
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##### Table of Contents



MINDSPEED TECHNOLOGIES, INC. RETIREMENT SAVINGS PLAN
 STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
 Years Ended December 31,2006
    
    
    2005ADDITIONS TO NET ASSETS ATTRIBUTED TO:Investment incomeNet appreciation in fair value of investments (Note 2)
    
    $
    1,068,777
    
    
    $
    791,324Interest and dividends
    
    
    89,671
    
    
    
    58,3561,158,448
    
    
    
    849,680ContributionsParticipants
    
    
    3,856,731
    
    
    
    4,192,126Company  Mindspeed Technologies, Inc. common stock
    
    
    785,433
    
    
    
    866,759Rollovers
    
    
    304,381
    
    
    
    407,1044,946,545
    
    
    
    5,465,989Total additions
    
    
    6,104,993
    
    
    
    6,315,669DEDUCTIONS FROM NET ASSETS ATTRIBUTED TO:Benefits paid to participants
    
    
    1,329,177
    
    
    
    813,277Administrative expenses
    
    
    20,324
    
    
    
    20,007Total deductions
    
    
    1,349,501
    
    
    
    833,284NET INCREASE
    
    
    4,755,492
    
    
    
    5,482,385NET ASSETS AVAILABLE FOR BENEFITS, beginning of year
    
    
    15,102,863
    
    
    
    9,620,478NET ASSETS AVAILABLE FOR BENEFITS, end of year
    
    $
    19,858,355
    
    
    $
    15,102,863
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MINDSPEED TECHNOLOGIES, INC. RETIREMENT SAVINGS PLAN
NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2006 AND 2005
 NOTE 1  DESCRIPTION OF THE PLAN AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
  General
 Eligibility
 Contributions
  Participant Accounts
  Vesting
 Forfeitures
 Administrative Expenses
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Payment of Benefits
 1 2
 Participant Loans
 Non-Distributed Benefits
 Non-Discrimination Testing for Employee and Employer Contributions
 Investment Valuation and Income Recognition
   Accounting Estimates
 New Accounting Pronouncements
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NOTE 2  INVESTMENTS
  December 31,2006
    
    
    
    
    
    
    2005PARTICIPANT DIRECTED INVESTMENTSCommon/collective trust:Fully benefit-responsive investment contract:Fidelity Managed Income Portfolio Trust
    
    $
    1,795,386
    
    
    
    *
    
    
    $
    1,660,711
    
    
    
    *Mutual funds:Spartan U.S. Equity Index Fund
    
    
    1,673,763
    
    
    
    *
    
    
    
    1,235,519
    
    
    
    *Fidelity Dividend Growth Fund
    
    
    1,584,658
    
    
    
    *
    
    
    
    1,265,709
    
    
    
    *Fidelity Diversified International Stock Fund
    
    
    1,522,775
    
    
    
    *
    
    
    
    584,637Baron Growth Fund
    
    
    1,502,361
    
    
    
    *
    
    
    
    935,522
    
    
    
    *Fidelity Mid Cap Stock Fund
    
    
    1,177,089
    
    
    
    *
    
    
    
    672,209Fidelity Low-Priced Stock Fund
    
    
    1,122,569
    
    
    
    *
    
    
    
    964,640
    
    
    
    *The Oakmark Select Fund Class I
    
    
    919,690
    
    
    
    
    
    
    
    876,127
    
    
    
    *Other
    
    
    4,983,666
    
    
    
    
    
    
    
    3,366,314Total mutual funds
    
    
    14,486,571
    
    
    
    
    
    
    
    9,900,677Mindspeed Technologies, Inc. common stock
    
    
    3,209,251
    
    
    
    *
    
    
    
    3,275,916
    
    
    
    *Interest bearing cash
    
    
    134,901
    
    
    
    
    
    
    
    113,796Participant loans
    
    
    213,670
    
    
    
    
    
    
    
    111,621$
    19,839,779
    
    
    
    
    
    
    $
    15,062,721
   Years Ended December 31,2006
    
    
    2005Mindspeed Technologies, Inc. common stock
    
    $
    (618,029
    )
    
    $
    266,416Common/collective trust
    
    
    73,264
    
    
    
    51,093Mutual funds
    
    
    1,613,542
    
    
    
    473,815$
    1,068,777
    
    
    $
    791,324
 NOTE 3  PLAN TERMINATION
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NOTE 4  TAX STATUS
   NOTE 5  RISKS AND UNCERTAINTIES
  NOTE 6  RELATED PARTY TRANSACTIONS
  NOTE 7  RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500
  December 31,2006Net assets available for benefits per the financial statements
    
    $
    19,858,355Less: Adjustment from fair value to contract value for fully
benefit-responsive
investment contracts
    
    
    (18,045
    )Net assets available for benefits per the Form 5500
    
    $
    19,840,310
  Year EndedDecember 31,2006Total investment income per the financial statements
    
    $
    1,158,448Less: Adjustment from fair value to contract value for fully
benefit-responsive
investment contracts
    
    
    (18,045
    )Total investment income per the Form 5500
    
    $
    1,140,403
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MINDSPEED TECHNOLOGIES, INC. RETIREMENT SAVINGS PLAN  SUPPLEMENTAL SCHEDULE  DECEMBER 31, 2006  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
    
    Maturity Date, Rate ofIssue, Borrower,
    
    Interest, Collateral,
    
    
    
    
    
    (e) Current(a)
    
    Lessor or Similar Party
    
    Par or Maturity Value
    
    (d) Cost
    
    
    Value*
    
    Fidelity Investments
    
    Interest bearing cash
    
    
    *
    *
    
    $
    134,901*
    
    Fidelity Investments
    
    Fidelity Fund
    
    
    *
    *
    
    
    164,245*
    
    Fidelity Investments
    
    Fidelity Growth Company Fund
    
    
    *
    *
    
    
    792,864*
    
    Fidelity Investments
    
    Fidelity OTC Portfolio Fund
    
    
    *
    *
    
    
    105,753*
    
    Fidelity Investments
    
    Fidelity Low-Priced Stock Fund
    
    
    *
    *
    
    
    1,122,569*
    
    Fidelity Investments
    
    Fidelity Diversified International Fund
    
    
    *
    *
    
    
    1,522,775*
    
    Fidelity Investments
    
    Fidelity Dividend Growth Fund
    
    
    *
    *
    
    
    1,584,658*
    
    Fidelity Investments
    
    Fidelity Mid-Cap Stock Fund
    
    
    *
    *
    
    
    1,177,089*
    
    Fidelity Investments
    
    Fidelity Freedom Income Fund
    
    
    *
    *
    
    
    77,619*
    
    Fidelity Investments
    
    Fidelity Freedom 2000 Fund
    
    
    *
    *
    
    
    56,130*
    
    Fidelity Investments
    
    Fidelity Freedom 2005 Fund
    
    
    *
    *
    
    
    2,000*
    
    Fidelity Investments
    
    Fidelity Freedom 2010 Fund
    
    
    *
    *
    
    
    234,648*
    
    Fidelity Investments
    
    Fidelity Freedom 2015 Fund
    
    
    *
    *
    
    
    35,237*
    
    Fidelity Investments
    
    Fidelity Freedom 2020 Fund
    
    
    *
    *
    
    
    410,191*
    
    Fidelity Investments
    
    Fidelity Freedom 2025 Fund
    
    
    *
    *
    
    
    43,017*
    
    Fidelity Investments
    
    Fidelity Freedom 2030 Fund
    
    
    *
    *
    
    
    336,163*
    
    Fidelity Investments
    
    Fidelity Freedom 2035 Fund
    
    
    *
    *
    
    
    121,032*
    
    Fidelity Investments
    
    Fidelity Freedom 2040 Fund
    
    
    *
    *
    
    
    113,264*
    
    Fidelity Investments
    
    Fidelity Freedom 2050 Fund
    
    
    *
    *
    
    
    314*
    
    Fidelity Investments
    
    Fidelity Intermediate Government Income Fund
    
    
    *
    *
    
    
    119,993*
    
    Fidelity Investments
    
    Fidelity Managed Income Portfolio Trust
    
    
    *
    *
    
    
    1,795,386*
    
    Fidelity Investments
    
    Fidelity U.S. Bond Index Fund
    
    
    *
    *
    
    
    585,535T. Rowe Price
    
    T. Rowe Price Emerging Market Stock Fund
    
    
    *
    *
    
    
    807,092Ariel
    
    Ariel Fund
    
    
    *
    *
    
    
    484,553Baron Funds
    
    Baron Growth Fund
    
    
    *
    *
    
    
    1,502,361Oakmark Funds
    
    The Oakmark Select Fund Class I
    
    
    *
    *
    
    
    919,690Spartan
    
    Spartan U.S. Equity Index Fund
    
    
    *
    *
    
    
    1,673,763Van Kampen
    
    Van Kampen Growth & Income Fund Class A
    
    
    *
    *
    
    
    494,016*
    
    MindspeedTechnologies, Inc.
    
    Common stock, 1,680,236 shares
    
    
    *
    *
    
    
    3,209,251*
    
    Participant loans
    
    Interest rates ranging from 5.75% to 10%
    
    $
    0
    
    
    
    213,670$
    19,839,779
 * Party-in-interest for which a statutory exception exists
** Historical cost information is not required for participant directed investment funds
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SIGNATURE
 The Plan.
 MINDSPEED TECHNOLOGIES, INC.RETIREMENT SAVINGS PLANDate: June 28, 2007
    By:
    /s/  Bradley W. YatesBradley W. YatesSenior Vice President and Chief Administrative Officer of Mindspeed Technologies, Inc. and Member of the Plan Administrative Committee 11




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EXHIBIT INDEX
 23
    
    Consent of Independent Registered Public Accounting Firm
 12