Daewoo DUB-2850GB, DUB-2842GB, Service Manual, Page: 24 / 79

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CP-780 Service Manual
4.2 TDA8946J STEREO AUDIO AMPLIFIER
The TDA8946J is a dual-channel audio power amplifier with an output power of 2x15W at an 8
load and a 18V supply. The circuit contains two Bridges Tied Load(BTL) amplifiers with an
all-NPN output stage and standby/mute logic. The TDA8946J comes in a 17-pin DIL-bent-
SIL(DBS) power package.
4.2.1 FEATURES
* Few external components
* Fixed gain
* 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
Pin description
Pin Symbol Description
1 OUT1- negative loudspeaker terminal 1
2 GND1 ground channel 1
3 Vcc1 supply voltage channel 1
4 OUT1+ positive loudspeaker terminal 1
5 n.c. not connected
6 IN1+ positive input1
7 n.c. not connected
8 IN1- negative input1
9 IN2- negative input2
10 MODE mode selection input
11 SVR half supply voltage decoupling (ripple rejection)
12 IN2+ positive input2