AS1705 - austriamicrosystems AG

AS1705 1.8W Single-Channel Audio Power Amplifiers

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) d.

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 ! ! ! ! ! ! ! ! Integrated shutdown circuitry disables the bias generator and amplifiers, and reduces quiescent current consumption to less than 100nA. T.