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Cirrus Logic Targets MP3 Internet Audio Players With Ultra Low-Power System-On-Chip Solution.


DENVER--(BUSINESS WIRE)--June 7, 1999--

New Digital Audio Player-on-a-Chip Allows OEMs to Differentiate

Designs; First Multi-standard AudioChip to Support MP3 and Microsoft

Audio Standards

Combining its industry-leading digital audio technology with its expertise in developing ARM-core based system-on-chip (SOC) solutions, Cirrus Logic (company) Cirrus Logic - A manufacturer of integrated circuits including the Advanced RISC Machine and display interface processors and cards for use as Windows accelerators (requiring dedicated driver software).

http://cirrus.com/.
 Inc. (Nasdaq: CRUS crus (krus) pl. cru´ra   [L.]
1. leg (1).

2. a leglike part.


crus ce´rebri
) today introduced a new SOC (the EP7209) designed specifically for personal digital audio players and Internet audio See RealAudio.  playback.

The new multi-standard digital audio solution is the first chip on the market to support both the popular MP3 standard, as well as other rapidly emerging Internet compression audio standards such as Microsoft Audio. In addition, by leveraging Cirrus Logic's expertise in low-power design, the new chip provides the processing power to handle both Internet audio as well as value-added features, giving system designers the freedom to differentiate their designs.

Integrating the functions of multiple chips, the EP7209 delivers superior audio performance in an ultra low-power SOC package. As an off-the-shelf ASSP (Application Specific Standard Part) An ASIC chip that is designed as a generic device for a particular market. Whereas an ASIC is typically used only by its creator, ASSPs are used by many different companies in the design of their products. See ASIC.  (application specific standard product), the EP7209 enables OEMs to minimize manufacturing costs and shorten time-to-market for new Internet See Web 2.0 and Internet2.  audio devices. Since Cirrus Logic also provides Crystal DACs (digital-to-analog converters), they are among the few vendors able to offer a total system solution for digital audio players, providing a two-chip solution for key system functions.

The initial target for the EP7209 is the burgeoning MP3 digital audio player market. Thanks to its programmable ARM processor core, the EP7209 can also easily accommodate new digital audio standards as the Internet audio player market evolves. According to according to
prep.
1. As stated or indicated by; on the authority of: according to historians.

2. In keeping with: according to instructions.

3.
 Cirrus Logic, the first MP3 players using its SOC solution should reach stores well before Christmas.

The current market for digital audio players, which enable consumers to download music directly from the Internet into flash ROM Another term for flash memory. Since flash chips can be updated over and over, the ROM (read only) designation is somewhat misleading. "ROM" is used more to mean not volatile than not changeable. See flash memory.

Flash ROM - Flash Erasable Programmable Read-Only Memory
 and then play it back, is estimated to reach as many as one million units in 1999. With Cirrus Logic's new chip, manufacturers will be able to quickly design new digital audio players at greatly reduced manufacturing costs.

"Our new MP3 SOC highlights our ASSP strategy, which allows us to stay ahead of the curve in rapidly evolving markets for a variety of information appliances," said Matthew Perry, vice president and general manager for Cirrus Logic's Embedded Processor A CPU chip used in a system other than a general purpose workstation, desktop or laptop computer. Such chips are used by the billions every year in a myriad of products. See embedded system.  Division. "Given our leadership in both audio processing and ARM-based chip designs, we were well positioned to quickly bring a leading edge Internet audio solution to market."

Ultra Low-Power Design

The EP7209's chip structure uses power-saving techniques that can prolong battery life by as much as 50 percent as compared to alternative multi-chip solutions - a real advantage for battery-operated information appliances. While the EP7209 is the first in a series of ASSPs for vertical markets, it draws upon Cirrus Logic's experience in producing ARM-processor-based systems, and ultra low-power design. With three generations of SOC solutions for portable handheld devices, Cirrus Logic has mastered design techniques that extend the inherent power efficiency of the ARM architecture.

Impressive Performance with MIPS (Million Instructions Per Second) The execution speed of a computer. For example, .5 MIPS is 500,000 instructions per second; 100 MIPS is a hundred million instructions per second.  to Spare

The EP7209 operates at 74MHz (MegaHertZ) One million cycles per second. It is used to measure the transmission speed of electronic devices, including channels, buses and the computer's internal clock. A one-megahertz clock (1 MHz) means some number of bits (16, 32, 64, etc.  - fast enough to equal the performance of a 100-MHz Intel Pentium-based PC - with extremely low power consumption of less than 170 milliwatts at 2.5 volts. Its ARM core provides the processing throughput of a full-fledged digital signal processor A digital signal processor (DSP) is a specialized microprocessor designed specifically for digital signal processing, generally in real-time computing. Characteristics of typical Digital Signal Processors
  • Designed for real-time processing
 (DSP (1) (Digital Signal Processor) A special-purpose CPU used for digital signal processing applications (see definition #2 below). It provides ultra-fast instruction sequences, such as shift and add, and multiply and add, which are commonly used in math-intensive ); thus, Internet audio processing only requires half the chip's available processing power. This leaves up to 25 MIPS for digital audio player manufacturers to apply to other functions that will distinguish their products and win customers in what promises to be a highly competitive environment.

Since the EP7209 uses the ARM720TDMI TDMI Transportation Demand Management Institute
TDMI TD Securities Melbourne Institute
TDMI Thumb Instruction, Debugger, Multiplier, ICE (ARM CPU features)
TDMI Terence Detlef Max International
 logic core, it also takes advantage of the ARM Thumb instruction set that shrinks the most frequently used instructions from 32 bits to 16 bits, thus enabling denser codes and faster system performance. By fully harnessing and extending the power of the ARM architecture, the EP7209 has plenty of processing power to handle the core system operation, digital audio processing and additional functions.

Flexible Architecture

The new EP7209 features a programmable architecture that enables design engineers to differentiate their products with value-added features, while enjoying the cost savings and time-to-market advantages of re-usable intellectual property (IP). For example, the chip can quickly be modified to support other audio compression Encoding digital audio data to take up less storage space and transmission bandwidth. Audio compression typically uses lossy methods, which eliminate bits that are not restored at the other end. ADPCM and MP3 are examples of audio compression methods. See audio codec and data compression.  standards as they emerge, or to implement customer-specific features, without creating new silicon.

Rich Audio Feature Set

Reflecting Cirrus Logic's leadership in digital audio, the EP7211 incorporates a number of important features directly related to sound quality, including digital bass, treble and volume controls, low power playback modes, and capabilities for a graphic equalizer, spectrum analyzer display and graphic level meter. Unlike competitors, the chip can also process audio output, enabling common musical effects such as reverb re·verb   Informal
n.
1. A reverberative effect produced in recorded music by electronic means.

2. A device used for producing this effect.

intr. & tr.v.
.

Other features include support for a large (4 Kbyte) LCD for display, a parallel download interface and optional irDA support for digital file transfers - features that will enhance design for personal digital audio players and other information appliance devices.

System-on-Chip Expertise

The EP7209 adds to Cirrus Logic's growing portfolio of system-on-chip solutions that combine proprietary IP with an ARM logic core. Another example is Cirrus Logic's ARM-based 7110, which was used in the ultra low-power handheld computer, the Psion Series 5. In addition to several generations of portable handheld devices, Cirrus Logic has also pioneered the use of ARM processor for mass storage devices with its 3Ci system-on-chip for hard disk drive electronics. Winner of the EDN 1998 "Innovation of the Year" award, 3Ci aims to revolutionize disk drive electronics with a single-chip, ARM-based system.

Packaging, Price and Availability

The EP7209 is sampling now, and is available in a 208-pin LQFP See QFP.  and 256-bal BGA (Ball Grid Array) A popular surface mount chip package that uses a grid of solder balls as its connectors. Available in plastic and ceramic varieties, BGA is noted for its compact size, high lead count and low inductance, which allows lower voltages to be used.  package. The listed unit price for the EP7209 is US $11.95 for the LQFP and $14.95 for BGA in quantities of 100,000 per year.

About Cirrus Logic Inc.

Cirrus Logic is a premier supplier of high-performance analog circuits and advanced mixed-signal chip solutions. The company's products, sold under its own name and the Crystal product brand, enable system-level applications in mass storage, audio and precision data conversion. Additional information about Cirrus Logic is available at www.cirrus.com.

Note to editors: Cirrus Logic is a registered trademark of Cirrus Logic Inc. All other product names noted herein may be trademarks of their respective holders.
COPYRIGHT 1999 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1999, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Geographic Code:1USA
Date:Jun 7, 1999
Words:1028
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