Philips TDA1552Q - Manual (Page 3)

July 1994 3
Philips Semiconductors Product specification
2 x 22 W BTL stereo car radio power
amplifier
TDA1552Q
Fig.1 Block diagram.
handbook, full pagewidth
mute/stand-by
MLB952
output 1A
Vref
x1
VA
stand-by
switch
VP
mute
switch
stand-by
reference
voltage
3 10
VP1 VP2
18 k Ω
2
k Ω
18 k Ω
15 k Ω
15 k Ω
2
k Ω
18 k Ω
2
k Ω
18 k Ω
2
k Ω
60
k Ω
60
k Ω
mute switch
VA
Cm
power stage
mute switch
VA
Cm
power stage
4
6
11
12
mute switch
VA
Cm
power stage
mute switch
VA
Cm
power stage
9
7
Vref
2 5 8
ground (signal)
GND1 GND2
power ground (substrate)
output 2B
output 2A
not connected
output 1B
input 1
input 2
13
1
TDA1552Q