Volume Control Drive Options - Philips TFA9843AJ Datasheet

Philips Semiconductors

13.1.2 Volume control drive options

TFA9843AJ_1
Preliminary data sheet
GND
PWM
3.3 V
Fig 12. Volume control drive circuit with 3.3 V PWM
Fig 13. Volume control drive circuit with 5 V PWM
Fig 14. Volume control drive circuit with potentiometer
20 W stereo power amplifier with volume control
V
CC
R1
10 k
T1
D1
5 V
5.6 V
R2
1 k
T3
R5
T2
1 k
R4
PWM
5 V
1 k
V
CC
R1
10 k
T1
R5
D1
10 V
16 k
Rev. 01 — 28 April 2006
TFA9843AJ
R3
1 k
R4
VC
1 k
C1
10 F
001aae337
VC
C1
10 F
001aae338
VC
C1
R6
10 F
16 k
001aae339
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
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