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Cirrus Logic's New Seismic Measurement Chip Pumps Up Next-Generation Energy-Exploration System Capabilities.

Business Editors & High-Tech Writers

AUSTIN, Texas--(BUSINESS WIRE)--Sept. 10, 2001

To help meet the increase in worldwide energy demand, Cirrus Logic Inc. (Nasdaq:CRUS) today introduced the newest member of its CS537x family of seismic survey and seismology measurement chips -- the CS5371 -- a single channel delta-sigma modulator.

The CS537x family gives designers the opportunity to improve data resolution up to 10 times and meet the increased channel count requirements of next-generation exploration systems. This enables the identification of potential oil pockets to plus/minus 4 meters, versus the plus/minus 40 meters using today's technology -- while allowing up to a 50 percent reduction in seismic system size. The CS537x family was designed specifically for use in land and ocean-based oil exploration, seismology and high-resolution earthquake monitoring equipment.

The increase in worldwide energy demand has resulted in renewed oil exploration activity. The Oil and Gas Journal forecasts that operators will increase total outlays for drilling and completions in the United States by 36 percent to $32 billion this year.

"As the seismic equipment market transitions to single sensor (1C) survey systems and multi-component (3C, 4C) reservoir monitoring systems, the number of measurement channels per system continues to increase," said Jac Coupe, seismic product marketing manager for Cirrus Logic. "Our new chip family gives manufacturers of seismic exploration equipment the flexibility of a multi-channel solution that minimizes size, integrates system peripherals, and cuts power in half while improving measurement performance."

The CS5371, when combined with the CS5372 dual channel delta-sigma modulator and the CS5376 quad channel digital filter, gives exploration equipment manufacturers increased design flexibility to create single and multi-channel seismic applications.

A complete four-channel modulator/digital filter solution can be implemented using only three devices, producing a compact cost-effective, high-resolution measurement system. Multi-channel system support, combined with integrated peripherals and customizable digital filter coefficients, provide for innovation and flexibility in design configuration.

Integrated system peripherals within the CS537X chip family simplify the design of seismic measurement systems by providing user programmable gain and offset correction factors for each channel, digital outputs for a delta-sigma test DAC, 12 general purpose I/O pins, a secondary master mode serial port, a time break controller for data tagging, and a JTAG port for boundary scan testing.

The digital filtering engine within the CS537X chip family is flexible because it can be programmed with custom filter coefficients, permitting system designers to offer optimized digital filters without the need for additional processing using a DSP. Customization lets system designers tailor the digital filters for specific applications while maintaining the key benefits of smaller size and lower power. The CS5376 digital filtering engine supports custom coefficients for linear phase or minimum phase FIR filters and first, second, or third order IIR filters, with a set of general-purpose FIR and IIR coefficients included on-chip for systems where custom digital filters are not required.

Cirrus Logic's new generation of seismic measurement chips provide higher performance, lower power, smaller size, and lower cost per channel compared with its previous generation industry-standard CS5321 delta-sigma modulator and CS5322 digital filter.

About Cirrus Logic

Cirrus Logic is the premiere supplier of high-performance analog and DSP chip solutions for consumer entertainment electronics that allow people to see, hear, connect and enjoy digital entertainment. Building on its global market share leadership in audio integrated circuits and its rich mixed-signal patent portfolio, the company targets mainstream audio, video and Internet entertainment applications in the consumer entertainment market. Cirrus Logic operates from headquarters in Austin, Texas and major sites located in Fremont, Calif. and Broomfield, Colo., as well as offices in Europe, Japan and Asia. More information about Cirrus Logic is available at

Except for historical information contained herein, the matters set forth in this news release are forward-looking statements that are dependent on certain risks and uncertainties including such factors, among others, as the ability of the CS5371 single channel delta-sigma modulator to perform as anticipated; the ability of the Company to close its pending acquisitions of ShareWave Inc., LuxSonor Semiconductors Inc. and Stream Machine Company; the ability of the Company to successfully integrate these acquisitions into its operations and realize the anticipated synergies; the ability of the Company to complete future acquisitions to acquire additional technologies; overall conditions in the semiconductor market; the resolution of the Company's litigation with Western Digital; the Company's shift away from magnetic storage and towards consumer-entertainment electronics; the rate of consumer electronics market adoption of new products; customer cancellations of orders, or the failure to place orders consistent with forecasts; hardware or software deficiencies; delays in customer qualification of key new products; final determination of appropriate inventory write-downs based on the outlook at the end of each quarter; the possibility of additional inventory write-downs based on the Company's inability to predict future demand in the market; actual operational spending; and the risk factors listed in the company's Form 10-K for the year ended March 31, 2001, and in other filings with the Securities and Exchange Commission. The foregoing information concerning Cirrus Logic's business outlook represents our outlook as of the date of this news release, and Cirrus Logic undertakes no obligation to update or revise any forward-looking statements, whether as a result of new developments or otherwise.
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Publication:Business Wire
Geographic Code:1USA
Date:Sep 10, 2001
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