TDA8944AJ中文资料2 x 7 W BTL audio amplifier with DC gain control数据手册恩XP规格书

描述 Description

OverviewThe TDA8944AJ is a dual-channel audio power amplifier with DC gain control. It has an output power of 2x7 W at an 8 Ω load and a 12 V supply. The circuit contains two Bridge-Tied Load (BTL) amplifiers with an all-NPN output stage and standby/mute logic. The overall gain can be adjusted from +30 dB down to -50 dB using a DC control voltage. This feature can be used for volume control or a preset gain. The TDA8944AJ comes in a 17-pin DIL-bent-SIL (DBS) power package and is pin compatible with the TDA8944J.

特性 Features

•Gain/volume adjustment via a DC control pin

•Soft clipping

•Operating at a low supply voltage

•Standby and mute mode

•No on/off switching plops

•Low standby current

•High supply voltage ripple rejection

•Outputs short-circuit protected to ground, supply and across the load

•Thermally protected

•Printed-circuit board compatible with TDA8946AJ and TDA8580J.

应用 Application

Mains fed applications (e.g.TV sound)

PC audio

Portable audio.