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1996 Jan 08 3
Philips Semiconductors Product specification
2 × 40 W/2 Ω stereo BTL car radio
power amplifier with diagnostic facility
TDA8560Q
BLOCK DIAGRAM
Fig.1 Block diagram.
mode switch
MEA856 - 1
output 1A
15 kΩ
15 kΩ
x1
VA
stand-by
switch
V
P
mute
switch
stand-by
reference
voltage
PROTECTIONS
Load dump
Soar
Thermal
Short - circuit
Reverse polarity
3
10
V
P1
V
P2
18 kΩ
365
Ω
mute switch
VA
C
m
power stage
18 kΩ
mute switch
VA
C
m
power stage
30
kΩ
4
6
11
18 kΩ
mute switch
VA
C
m
power stage
18 kΩ
mute switch
VA
C
m
power stage
30
kΩ
9
7
258
ground (signal)
GND1 GND2
power ground (substrate)
output 2B
output 2A
output 1B
input 1
input 2
13
1
TDA8560Q
mute
reference
voltage
input
reference
voltage
365
Ω
365
Ω
365
Ω
12 diagnostic
output
DIAGNOSTIC
INTERFACE