Philips TDA8567Q - Manual (Page 10)

1998 Sep 23 10
Philips Semiconductors Product specification
4
×
25 W BTL quad car radio power
amplifier
TDA8567Q
TEST AND APPLICATION INFORMATION
Fig.7 Application circuit diagram.
Special care must be taken in the PCB-layout to separate pin 9 from the pins 10, 11 13 and 14 to minimize the crosstalk between the clip output
and the inputs.
To avoid switch-on plops, it is advised to keep the amplifier in the mute mode during a period of ≥ 150 ms (charging the input capacitors at pin
10, 11, 13 and 14).
handbook, full pagewidth
MGG158
OUT1 +
RL = 4 Ω
OUT1 −
+
−
+
−
Vref
2
IN1
input 1
IN2
input 2
4
15
10
MODE
2200 µ F 100 nF
23
+ 14.4 V
16 8 1
VP1 VP2 VP3 VP4
VP
30 k Ω
OUT2 +
RL = 4 Ω
OUT2 −
+
−
+
−
7
5
11
30 k Ω
470 nF
470 nF
470 nF
470 nF
21 18 6 3
PGND1 PGND2 PGND3 PGND4
power ground (substrate)
OUT3
+
RL = 4 Ω
OUT3 −
+
−
+
−
Vref
17
IN3
SGND
TDA8567Q
input 3
IN4
input 4
19
13
12
30 k Ω
OUT4 +
RL = 4 Ω
OUT4 −
+
−
+
−
22
20
14
30 k Ω
10 k Ω
VDIAG
+ VP
DIAGNOSTIC diagnostic
output
9