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TDA8567Q Datasheet, PDF (10/20 Pages) NXP Semiconductors – 4 x 25 W BTL quad car radio power amplifier | |||
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Philips Semiconductors
4 Ã 25 W BTL quad car radio power
ampliï¬er
Product speciï¬cation
TDA8567Q
TEST AND APPLICATION INFORMATION
handbook, full pagewidth
MODE
VP1
15
1
input 1
IN1 10
470 nF
30 kâ¦
VP
VP2
VP3
8
16
+
â
+
â
+14.4 V
VP4
100 nF
2200 µF
23
2 OUT1+
4 OUT1â
RL = 4 â¦
input 2
IN2 11
470 nF
SGND 12
input 3
IN3 13
470 nF
+
â
30 kâ¦
+
â
TDA8567Q
+
â
30 kâ¦
+
â
Vref
7 OUT2+
5 OUT2â
9 VDIAG
DIAGNOSTIC
17 OUT3+
RL = 4 â¦
10 k⦠+VP
diagnostic
output
19 OUT3â
RL = 4 â¦
input 4
IN4 14
470 nF
+
â
30 kâ¦
+
â
Vref
22 OUT4+
20 OUT4â
RL = 4 â¦
3
6
18
21
PGND1 PGND2 PGND3 PGND4
power ground (substrate)
MGG158
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).
Fig.7 Application circuit diagram.
1998 Sep 23
10
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