Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
CASE THURMAN K
   2. Issuer Name and Ticker or Trading Symbol
CIRRUS LOGIC INC [CRUS] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP and CFO
(Last)
(First)
(Middle)
2901 VIA FORTUNA		 3. Date of Earliest Transaction (Month/Day/Year)
02/01/2011
(Street)

AUSTIN, TX 78746		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 02/01/2011   M   12,005 A $ 8.41 12,005 D  
Common Stock 02/01/2011   S(1)   12,005 D $ 21.3177 0 D  
Common Stock 02/01/2011   M   255 A $ 8.41 255 D  
Common Stock 02/01/2011   S(1)   255 D $ 21.3177 0 D  
Common Stock 02/01/2011   M   1,133 A $ 6.51 1,133 D  
Common Stock 02/01/2011   S(1)   1,133 D $ 21.3177 0 D  
Common Stock 02/01/2011   M   2,500 A $ 6.51 2,500 D  
Common Stock 02/01/2011   S(1)   2,500 D $ 21.3177 0 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Incentive Stock Option (right to buy) $ 6.51 02/01/2011   M     1,133   (2) 10/03/2017 Common Stock 1,133 $ 0 10,191 D  
Incentive Stock Option (right to buy) $ 8.41 02/01/2011   M     12,005   (3) 03/07/2017 Common Stock 12,005 $ 0 2,084 D  
Non-Qualified Stock Option (right to buy) $ 6.51 02/01/2011   M     2,500   (4) 10/03/2017 Common Stock 2,500 $ 0 44,615 D  
Non-Qualified Stock Option (right to buy) $ 8.41 02/01/2011   M     255   (5) 03/07/2017 Common Stock 255 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
CASE THURMAN K
2901 VIA FORTUNA
AUSTIN, TX 78746		       VP and CFO  

Signatures

 Thurman K. Case   02/02/2011
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The sales price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.30 to $21.3450. The reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to any security holder of Cirrus Logic, Inc. or the staff of the Securities and Exchange Commission, upon request.
(2) This incentive employee stock option grant and its companion non-qualified employee stock option grant, together totaling 75,000 options, were granted to the reporting person on 10/3/2007. The options are exercisable according to the following 4-year schedule: 25% of the shares vested and became exercisable on 10/3/2008. The remaining 75% of the shares vest in 36 equal monthly installments beginning on 11/3/2008. The option will be fully vested and exercisable on 10/3/2011.
(3) This incentive employee stock option grant and its companion non-qualified employee stock option grant, together totaling 50,000 options, were granted to the reporting person on 3/7/2007. The options are exercisable according to the following 4-year schedule: 25% of the shares vested and became exercisable on 3/7/2008. The remaining 75% of the shares vest in 36 equal monthly installments beginning on 4/7/2008. The option will be fully vested and exercisable on 3/7/2011.
(4) This non-qualified employee stock option grant and its companion incentive employee stock option grant, together totaling 75,000 options, were granted to the reporting person on 10/3/2007. The options are exercisable according to the following 4-year schedule: 25% of the shares vested and became exercisable on 10/3/2008. The remaining 75% of the shares vest in 36 equal monthly installments beginning on 11/3/2008. The option will be fully vested and exercisable on 10/3/2011.
(5) This non-qualified employee stock option grant and its companion incentive employee stock option grant, together totaling 50,000 options, were granted to the reporting person on 3/7/2007. The options are exercisable according to the following 4-year schedule: 25% of the shares vested and became exercisable on 3/7/2008. The remaining 75% of the shares vest in 36 equal monthly installments beginning on 4/7/2008. The option will be fully vested and exercisable on 3/7/2011.

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