TDA8948J_1
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 01 — 27 February 2008
16 of 26
NXP Semiconductors
TDA8948J
4-channel audio amplifier
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.
Fig 12. Application diagram with one pin control and reduction of capacitor
V
CC1
V
CC2
16
220 nF
IN1+
IN2+
OUT1+
OUT2
−
220 nF
RL4
Ω
RL4
Ω
470
µ
F
1
4
VCC
1000
µ
F
100 nF
470 nF
IN3+
IN4+
OUT3
−
OUT4+
Vi
Vi
Vi
VCC
RL8
Ω
−
+
−
+
−
+
22
µ
F
2
15
GND1
GND2
60 k
Ω
60 k
Ω
3
8
6
60 k
Ω
60 k
Ω
9
12
14
17
TDA8948J
MUTE 3 + 4
ON 3 + 4
STANDBY ALL
MUTE ALL
ON 1 + 2
0.5VCC
V
CC
CIV 13
MODE1
SGND
10
7
SVR 11
MODE2 5
SHORT-CIRCUIT
AND
TEMPERATURE
PROTECTION
VREF
150
µ
F
+
+
+
+
+
−
−
+
MICRO-
CONTROLLER
010aaa051
