austriamicrosystems IAS1702 Power Amplifier

austriamicrosystems AG’s new AS1702/3/4/5 family of 1.6W single-channel audio power amplifiers are suitable as front-ends for battery-powered audio devices, such as MP3 and CD players, mobile phones, PDAs, portable DVD players, and other hand-held, devices.

The amplifiers are designed to drive 4W and 8W loads and the integrated gain circuitry, and the small size makes them suitable for 2.7V to 5V powered devices. Different gain levels for the AS1702/3/4/5 – adjustable gain via external components of 0dB, 3dB and 6dB, respectively – facilitate reduced component designs. A differential input design improves noise and common-mode rejection, while a bridge-tied load design minimizes external component count, while providing power amplification. The integrated shutdown circuitry disables the bias generator and amplifiers, and reduces quiescent current to less than 100nA.

The devices are available in a 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 information, visit www.austriamicrosystems.com