General Description
The AS1702 - AS1705 are single-channel differential audio power-amplifiers designed to drive 4 and 8Ω loads. The integrated gain circuitry of these amplifiers and their small size make them ideal for 2.7- to 5V-powered portable audio devices. The differential input design improves noise rejection and provides common-mode rejection. A bridge-tied load (BTL) design minimizes external component count, while providing high-fidelity audio power amplification.

KEY FEATUREs
2.7 to 5.5V (VCC) Single-Supply Operation
THD+N: 1.8W into 4Ω at 1% (per Channel)
Differential Input
Adjustable Gain Option (AS1702)
Internal Fixed Gain to Reduce External Component Count (AS1703, AS1704, AS1705)
<100nA Low-Power Shutdown Mode
Click and Pop Suppression
Pin-Compatible to National Semiconductor LM4895 (AS1705) and Maxim MAX9718A/B/C/D
Operating Temperature Range: -40 to +85ºC
Package Types
  - 10-pin MSOP
  - 10-pin DFN

APPLICATIONs
The devices are ideal as audio front-ends for battery powered audio devices such as MP3 and CD players, mobile phones, PDAs, portable DVD players, and any other hand-held battery-powered device.