Cirrus Logic Incorporates New Dolby Pro Logic IIx Into Audio DSP Families; Cirrus Customers Demonstrate Dolby Pro Logic IIx at CEDIA Show

AUSTIN, Texas--Sept. 3, 2003--Cirrus Logic Inc. today announced that it has incorporated Dolby Laboratories' newest audio algorithm, Dolby Pro Logic(R) IIx, across its multiple family lines of audio digital signal processors (DSPs). Cirrus plans to incorporate the new Dolby standard into the CS49300 and CS49400 DSP chip families in the fourth quarter of 2003.

Already, Cirrus is enabling several leading audio manufacturers to take an early leadership position in introducing the new Dolby format into the market, as evidenced by their Dolby Pro Logic IIx demonstrations powered by Cirrus DSP chips at the CEDIA Expo Sept. 3-7 in Indianapolis. Marantz plans to demonstrate the algorithm through its SR7400 receiver, powered by the CS49400, which it plans to ship in November. Harman Kardon said that it also intends to integrate Dolby Pro Logic IIx into selected receivers this fall, and the CS49300 DSP is a key ingredient in Fosgate Audionics' new FAP T1+ surround processor/preamp, on display in CEDIA Expo Booth No. 1508. The new processor is the first to feature Dolby Pro Logic IIx, an upgrade of Jim Fosgate's original DPL II technology that now provides a 7.1 solution for high-end enthusiasts who want to enjoy superior multichannel performance from a two-channel source recording.

"Cirrus Logic is proud to reinforce its leadership in audio DSPs by delivering products that support Dolby Pro Logic IIx right now," said Daryl Sartain, vice president of Digital Audio Marketing, Cirrus Logic. "We're delighted that leading audio manufacturers such as Fosgate Audionics, Harman Kardon and Marantz have turned to Cirrus to enable their early leadership in showcasing this new Dolby standard."

Dolby Pro Logic IIx technology delivers a highly immersive and natural 7.1 channel surround-sound listening experience to the home-theater environment. A product of Dolby's highly advanced, long-term expertise in surround-sound and matrix-decoding technologies, Dolby Pro Logic IIx provides a complete surround-sound solution designed to maximize the entertainment experience from stereo as well as 5.1 channel encoded sources.

Cirrus Logic Inc.

Cirrus Logic is a premier supplier of high-performance analog, mixed-signal and digital processing solutions for consumer entertainment electronics, automotive entertainment and industrial product applications. Building on its global market leadership in audio ICs and its rich mixed-signal patent portfolio, Cirrus Logic targets audio, video and precision mixed-signal applications in these growing markets. The company operates from headquarters in Austin, Texas, with offices in California, Colorado, Europe, Japan and Asia. More information about Cirrus Logic is available at www.cirrus.com.

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