LOS ANGELES, Calif., – Audio Engineering Society Show – September 21, 2000 – Cirrus Logic Inc. (NASDAQ:CRUS), the worldwide market share leader in audio chips, today introduced the CS43122, a new Crystal® digital-to-analog (D/A) Converter that achieves the highest performance of any audio D/A Converter on the market. The CS43122 leverages Cirrus Logic’s analog design expertise in an integrated, single-chip D/A Converter with 122dB dynamic range and transparent audio conversion that delivers unprecedented sound quality for high performance audio systems.

Dynamic range is a key audio specification that measures the amount of noise that a converter introduces to a system, which directly impacts sound quality and audio performance. By minimizing the noise level to the lowest in the industry, the CS43122 achieves 122dB dynamic range and provides transparent digital-to-analog conversion for the ultimate listening experience.

“We have combined our analog expertise and broad portfolio of intellectual property to once again set the standard for D/A Converter performance with the CS43122,” said Jason Carlson, vice president and general manager of Cirrus Logic’s Consumer Products Division. “Consumers can look forward to a new level of performance in next generation audio products, as manufacturers can integrate the CS43122 to deliver professional, high-fidelity audio products with unprecedented sound quality.”

Consumers will now be able to enjoy audio performance once confined to professional settings such as recording studios. The CS43122 preserves the essence of original audio recordings by delivering transparent digital-to-analog conversion. This ability to reproduce the ambience and atmosphere of a live performance is a characteristic that manufacturers strive to deliver in audio systems such as high-end DVD-Audio players (24-bit, 192kHz sample rates), A/V receivers, outboard converters, mixing consoles and effects processors.

The CS43122 achieves the highest dynamic range of any audio D/A Converter in the market (122dB) and THD+N of 0.0007 percent. The new chip is based on Cirrus Logic’s patented multi-bit delta sigma modulator architecture, analog filter technology, and second generation dynamic element matching. Combined, these proprietary technologies allow the CS43122 to achieve a flat noise floor that remains constant regardless of input signal characteristics. The CS43122 is an integrated, single-chip solution that allows manufacturers to achieve the highest level of performance so they can provide innovative professional and high-fidelity audio products to consumers.

Pricing and Availability

The Crystal CS43122 is offered in a 28-pin SOIC package and is currently available, priced at $12.20 in OEM quantities.

Cirrus Logic

Cirrus Logic is a premier supplier of high-performance analog and DSP chip solutions for Internet entertainment electronics. Building on its global market share leadership in audio integrated circuits and its rich mixed-signal patent portfolio, the company targets high-volume audio, storage and communications applications. Cirrus Logic sells its products under the Crystal®, Maverick™ and 3Ci™ brands as well as its own name. Founded in 1984 in Silicon Valley, Cirrus Logic operates from headquarters in Austin, Texas and major sites located in Fremont, California and Broomfield, Colorado as well as offices in Europe, Japan and Asia. More information about Cirrus Logic is available at www.cirrus.com.

Safe Harbor Provision

Any forward-looking statements and all other statements that may be made in this news release that are not historical facts are subject to a number of risks and uncertainties, and actual results may differ materially. Please refer to Cirrus Logic’s current Form 10-K and other filings with the Securities and Exchange Commission for more information on the risk factors that could cause actual results to differ.

Note to editors: Cirrus Logic, Crystal® and Maverick™ are registered trademarks of Cirrus Logic Inc. All other product names noted herein may be trademarks of their respective holders.

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