TDA8947J Datasheet, PDF (16/24 Pages) NXP Semiconductors – 4-channel audio amplifier (SE: 1 W to 25 W; BTL: 4 W to 50 W)

Philips Semiconductors
TDA8947J
4-channel audio amplifier
220 nF _{IN1+ 8}
Vi
60 kΩ
220 nF _{IN2+ 6}
Vi
60 kΩ
IN3+ 9
470 nF
60 kΩ
Vi
IN4+ 12
60 kΩ
VCC1
3
VCC2
16
100 nF
VCC
1000 µF
1 OUT1+
4 OUT2−
−
+
14 OUT3−
−
+
17 OUT4+
+
RL
− ^4Ω
RL
4Ω
450 µF
RL
8Ω
22 µF
CIV 13
VCC
SHORT-CIRCUIT
AND
TEMPERATURE
PROTECTION
SVR 11 _0.5VCC
150 µF
Vref
SGND 7
MICRO-
CONTROLLER
MODE1 10
VCC ^{MODE2 5}
STANDBY ALL
MUTE ALL
ON 1+2
MUTE 3+4
ON 3+4
TDA8947J
2
GND1
15
GND2
MDB018
Fig 13. Application diagram with one pin control and reduction of capacitor.
Remark: Because of switching inductive loads, the output voltage can rise beyond
the maximum supply voltage of 28 V. At high supply voltages, it is recommended to
use (Schottky) diodes to the supply voltage and ground.
9397 750 10779
Preliminary data
Rev. 01 — 06 February 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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