July 1994 8
Philips Semiconductors Product specification
2 x 22 W stereo BTL differential amplifier
with speaker protection and dynamic TDA1556Q
Fig.4 Stereo BTL test diagram.
handbook, full pagewidth
100
nF
DDD mute/stand-by
414513
15
Vref
9
3
n.c.
n.c.
audio
source
1/2 Rs220 nF
220 µF
1
2
Zi1
Zi2
6
8
Rload
1/2 Rs
audio
source
1/2 Rs220 nF
220 µF
16
17
Zi3
Zi4
10
12
Rload
1/2 Rs
711
MLA380-2
VP

TDA1556Q

2200
µF
4.7 
µF