TDA8571 Philips Semiconductors, TDA8571 Datasheet - Page 10

• Manufacturer Part Number: TDA8571
• Description: 4 x 40 W BTL quad car radio power amplifier
• Manufacturer: Philips Semiconductors

Philips Semiconductors
TEST AND APPLICATION INFORMATION
1998 Mar 13
handbook, full pagewidth
4 x 40 W BTL quad car radio power
amplifier
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
10, 11, 13 and 14).
input 1
input 2
input 3
input 4
470 nF
470 nF
470 nF
470 nF
SGND
IN1
IN2
IN3
IN4
10
11
12
13
14
MODE
15
TDA8571J
30 k
30 k
30 k
30 k
Fig.7 Application circuit diagram.
V P1
1
3
PGND1
V P2
8
6
PGND2
V P
10
power ground (substrate)
DIAGNOSTIC
16
18
V P3
PGND3
V ref
V ref
V P4
23
21
PGND4
17
19
22
20
2
4
7
5
9
150 ms (charging the input capacitors at pins
OUT1
OUT1
OUT2
OUT2
OUT3
OUT3
OUT4
OUT4
V DIAG
MGM564
100 nF
10 k
R L = 4
R L = 4
R L = 4
R L = 4
Preliminary specification
V P
2200 F
diagnostic
output
14.4 V
TDA8571J