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TFA9843AJ_1 © Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Preliminary data sheet Rev. 01 — 28 April 2006 10 of 19
Philips Semiconductors
TFA9843AJ
20 W stereo power amplifier with volume control
13. Application information
13.1 Application diagrams
13.1.1 Single-ended application
Remark: By switching inductive loads, the output voltage can rise beyond the maximum
supply voltage of 28 V. At high supply voltage it is recommended to use (Schottky) diodes
between the supply voltage and ground.
Fig 11. SE application diagram
MICRO-
CONTROLLER
001aae430
60 kΩ
60 kΩ
22 µF 10 µF
220 nF
150 µF
VOLUME
CONTROL
SHORT-CIRCUIT
AND
TEMPERATURE
PROTECTION
V
REF
0.5V
CC
V
CC
V
CC
9
4
IN1
IN2
OUT1
OUT2
SVR
CIV
VC
1
3
7
8
2
6
5
GND
TFA9843AJ
V
i
220 nF
V
i
V
CC
1000 µF
1000 µF
1000 µF
100 nF
+
−
R
L
4 Ω
R
L
4 Ω
+
−
−