TDA8742 Datasheet, PDF (14/21 Pages) NXP Semiconductors – Satellite sound circuit with noise reduction

Philips Semiconductors
Satellite sound circuit with noise reduction
Product specification
TDA8742; TDA8742H
Table 1 Truth table for input selection
SWITCH
POSITION
1
2
3
4
STATE
pins 2 and 10; IN-A (pins 40 and 5)
pins 4 and 12; IN-B (pins 42 and 7)
pins 6 and 14; IN-C (pins 1 and 9)
pins 8 and 16; IN-D (pins 3 and 12
Table 2 Truth table for output selection (note 1)
SWITCH
POSITION
1
2
3
4
5
6
7
STATE
stereo
left
right
main
external
mute secondary
mute all
PIN 15 (10)
OUTSEL L
1
1
0
0
X
X
X
Note
1. X = don’t care.
PIN 17 (13)
OUTSEL R
1
0
1
0
X
X
X
PIN 3 (41)
0
0
1
1
PIN 26 (22)
EXT/INT
0
0
0
0
1
0
1
PIN 5 (43)
0
1
0
1
PIN 13 (8)
MUTE
0
0
0
0
0
1
1
October 1994
14