Eight-Channel Flagship CS3318 Delivers Unmatched Control Flexibility While Reducing System Cost

AUSTIN, Texas – Feb. 27, 2006 – Designers of high-end multichannel audio systems have a new industry standard analog volume control integrated circuit (IC): the CS3318 from Cirrus Logic Inc (Nasdaq: CRUS). With a superior dynamic range of 127 dB, 118 dB adjustable range and negligible distortion, the CS3318 delivers unmatched audio quality performance for high-end consumer and professional audio applications such as multichannel audio/video receivers, home theater systems, digital mixing consoles, outboard audio converters, PC sound cards and automotive entertainment applications.

“Unlike some digital volume control products that limit the dynamic range, the CS3318 is a digitally-controlled analog volume control IC that offers a much broader dynamic range, 127 dB, and inherently superior audio quality as a result,” said Jason Rhode, vice president, Mixed-Signal Audio Products Division, Cirrus Logic.

Supporting eight channels of audio, such as for 7.1 surround-sound entertainment systems, the CS3318 provides a single-chip solution designed to reduce the need for external components, reducing circuit board space and helping OEMs achieve more compact designs at lower costs. The CS3318 operates from a ±9 V power supply, with 118 dB adjustable range from +22 db to -96 dB, negligible distortion and interchannel isolation. Cirrus Logic also offers the CS3308 IC, a pin-compatible ±5 V version with a very high dynamic range of 123 dB. Both the CS3318 and CS3308 feature a .25 dB step size, which is improved from the industry standard of .5 dB, provides upgraded resolution to ensure considerably smoother, finer volume adjustment.

Additionally, patent-pending technologies such as dynamic address assignment and simultaneous master volume controls across devices over a single serial control bus (eg. I²C/SPI) gives additional flexibility to designers and helps to simplify designs.

Pricing and Availability

The CS3318 and CS3308 are now available and are priced at $9.22 and $6.97, respectively, in quantities of 10,000.

Cirrus Logic Inc.

Cirrus Logic develops high-precision analog and mixed-signal integrated circuits for a broad range of consumer and industrial markets. Building on its diverse analog mixed-signal patent portfolio, Cirrus Logic delivers highly optimized products for consumer and commercial audio, automotive entertainment and industrial applications. The company operates from headquarters in Austin, Texas, with offices in Colorado, Europe, Japan and Asia.

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Cirrus Logic and Cirrus are trademarks of Cirrus Logic Inc. All other product names noted herein may be trademarks of their respective holders.

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