Audio Power Amplifiers target portable electronics.

Press Release Summary:




Series AS1702/3/4/5 single-channel, 1.6 W amplifiers are designed to drive 4 and 8 W loads. Integrated gain circuitry makes units suited for 2.7-5 V powered devices. Differential input optimizes noise and common-mode rejection, and bridge-tied load minimizes external component count, while providing Hi-Fi audio power amplification. Integrated shutdown circuitry disables bias generator and amplifiers, and reduces quiescent current consumption to less than 100 nA.



Original Press Release:



austriamicrosystems Introduces 1.6W Single-channel Audio Power Amplifiers



AS1702/3/4/5 amplifiers are ideal for mobile phones, PDAs and other portable devices

RALEIGH, N.C. - March 23, 2005 - Offering portable electronics designers higher output power and lower distortion solutions, austriamicrosystems has developed the AS1702/3/4/5 family of 1.6-Watt single-channel audio power amplifiers. The AS1702/3/4/5 fully differential audio power amplifiers offer higher output power (1.6W) at comparable distortion levels, or lower distortion levels at comparable output power than similar products, making them ideally suited as front-ends for battery-powered audio devices, such as MP3 and CD players, mobile phones, PDAs, portable DVD players and other hand-held battery-powered devices.

The amplifiers are designed to drive 4W and 8W loads and the integrated gain circuitry, and their small size make them ideal for 2.7-5V powered devices. Different gain levels for the AS1702/3/4/5 - adjustable gain via external components, 0dB, 3dB and 6dB, respectively - facilitate reduced component designs. Further, a differential input design improves noise and common-mode rejection, while a bridge-tied load (BTL) design minimizes external component count, while providing Hi-Fi audio power amplification.

Continuing austriamicrosystems' industry leadership in low power consumption, the integrated shutdown circuitry disables the bias generator and amplifiers, and reduces quiescent current consumption to less than 100nA. The shutdown input can be set as active-high or active-low, and all devices contain comprehensive click-and-pop suppression circuitry that reduces audible clicks and pops during power-up and shutdown.

The devices are available in 10-pin MSOP package and are pin-compatible with LM4895 (AS1705), TS4994 (AS1702) and MAX9718A/B/C/D. Pricing begins at $0.70 in quantities of 1,000 units.

For product-specific information and free sample requests please go to austriamicrosystems.com/03products/audio_amplifiers.htm.

For addition information about the AS1702/3/4/5 or other austriamicrosystems products, contact austriamicrosystems at (919) 676-5292; 8601 Six Forks Rd., Suite 400, Raleigh, NC, 27615; sales.americas@austriamicrosystems.com; or on the Web at www.austriamicrosystems.com.

About austriamicrosystems
austriamicrosystems is a leading designer and manufacturer of high performance analog ICs, combining more than 20 years of analog design capabilities and system know-how with its own state-of-the-art manufacturing and test facilities. austriamicrosystems leverages its expertise in low power and high accuracy to provide industry-leading customized and standard analog products. Operating worldwide with more than 800 employees, austriamicrosystems focuses on the areas of power management, sensors & sensor interfaces, portable audio and car access through its business units Communications, Industry & Medical, Automotive and Full Service Foundry. austriamicrosystems is listed on the SWX Swiss Exchange in Zurich (ticker symbol: AMS). For more information visit www.austriamicrosystems.com.

AM078
For Further Information
austriamicrosystems AG
Media Relations
Sonja Pieber-Hascher
Tel: +43 (0) 3136 500 5968
Fax: +43 (0) 3136 500 5420
sonja.pieber@austriamicrosystems.com
www.austriamicrosystems.com

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