2003 Aug 08

10

Philips Semiconductors

Product specification

4

× 40 W BTL quad car radio

power amplifier

TDA8569Q

TEST AND APPLICATION INFORMATION

handbook, full pagewidth

MBK011

OUT1

+

RL = 2 Ω

OUT1

−

+

−

+

−

Vref

2

IN1

input 1

IN2

input 2

4

15

10

MODE

4700

µF

100 nF

23

+14.4 V

16

8

1

VP1

VP2

VP3

VP4

VP

30 k

Ω

OUT2

+

RL = 2 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 = 2 Ω

OUT3

−

+

−

+

−

Vref

17

IN3

SGND

TDA8569Q

input 3

IN4

input 4

19

13

12

30 k

Ω

OUT4

+

RL = 2 Ω

OUT4

−

+

−

+

−

22

20

14

30 k

Ω

10 k

Ω

VDIAG

+VP

DIAGNOSTIC

diagnostic

output

9

Fig.7 Application circuit diagram.

clip output and the inputs.

To avoid switch-on plops, it is advised to keep the amplifier in the mute mode for a period of

≥150 ms (charging the input capacitors at

pins IN1, IN2, IN3 and IN4).