Exhibit 32.2

Certification Pursuant to 18 U.S.C. Section 1350,

as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Form 10-Q of Cirrus Logic, Inc. (the “Company”) for the quarter ended June 28, 2003, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, W. Kirk Patterson, acting Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ W. KIRK PATTERSON

W. Kirk Patterson

Acting Chief Financial Officer

Date: August 6, 2003