TDA8946J COLOUR TV AUDIO IC DATA SHEET

TDA8946J

Functional description

The TDA8946J is a stereo BTL audio power amplifier capable of delivering 2 � 15 W
output power to an 8 W load at THD = 10%, using a 18 V power supply and an
external heatsink. The voltage gain is fixed at 32 dB.
With the three-level MODE input the device can be switched from �standby� to �mute�
and to �operating� mode.
The TDA8946J outputs are protected by an internal thermal shutdown protection
mechanism and a short-circuit protection.

1 OUT1-
2 GND1
3 VCC1
4 OUT1+
5 n.c.
6 IN1+
7 n.c.
8 IN1-
9 IN2-
10 MODE / MUTE
11 SVR
12 IN2+
13 n.c.
14 OUT2-
15 GND2
16 VCC2
17 OUT2+

Symbol Pin Description

OUT1- 1 negative loudspeaker terminal 1
GND1 2 ground channel 1
VCC1 3 supply voltage channel 1
OUT1+ 4 positive loudspeaker terminal 1
n.c. 5 not connected
IN1+ 6 positive input 1
n.c. 7 not connected
IN1- 8 negative input 1
IN2- 9 negative input 2
MODE 10 mode selection input (standby, mute, operating)
SVR 11 half supply voltage decoupling (ripple rejection)
IN2+ 12 positive input 2
n.c. 13 not connected
OUT2- 14 negative loudspeaker terminal 2
GND2 15 ground channel 2
VCC2 16 supply voltage channel 2
OUT2+ 17 positive loudspeaker terminal 2

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COLOUR TV ALL IC DATA SHEET AND PINOUTS

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