TDA8569Q_15 Datasheet, PDF (10/18 Pages) NXP Semiconductors – 4X40 W BTL quad car radio power amplifier

Philips Semiconductors
4 × 40 W BTL quad car radio
power amplifier
TEST AND APPLICATION INFORMATION
Product specification
TDA8569Q
handbook, full pagewidth
MODE
VP1
15
1
input 1
IN1 10
470 nF
30 kΩ
VP
VP2
VP3
8
16
+
−
+
−
+14.4 V
VP4
100 nF
4700 µF
23
2 OUT1+
4 OUT1−
RL = 2 Ω
input 2
IN2 11
470 nF
SGND 12
input 3
IN3 13
470 nF
+
−
30 kΩ
+
−
TDA8569Q
+
−
30 kΩ
+
−
Vref
7 OUT2+
5 OUT2−
9 ^VDIAG
DIAGNOSTIC
17 OUT3+
RL = 2 Ω
10 kΩ _+VP
diagnostic
output
19 OUT3−
RL = 2 Ω
input 4
IN4 14
470 nF
+
−
30 kΩ
+
−
Vref
22 OUT4+
20 OUT4−
RL = 2 Ω
3
6
18
21
PGND1 PGND2 PGND3 PGND4
power ground (substrate)
MBK011
Special care must be taken in the PCB-layout to separate pin V_DIAG from the pins IN1, IN2, IN3 and IN4 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 for a period of ≥150 ms (charging the input capacitors at
pins IN1, IN2, IN3 and IN4).
Fig.7 Application circuit diagram.
2003 Aug 08
10