ROHM BA3571F Datasheet
BA3571F
Audio ICs
Headphone driver for
portable CD players
BA3571F
The BA3571F is headphone drivers designed for portable CD players. An oscillation damper is not needed at the
headphone output, minimizing external components. Includes a bass boost circuit which enables setting of the bass
boost with external components.
Applications
!
Portable CD players
Features
!
1) An external oscillation damper is not needed.
2) Includes a bass boost circuit making it possible to set
the bass boost with attached components.
Absolute maximum ratings
!!!!
Parameter Symbol Limits Unit
Power supply voltage V
Power dissipation
Operating temperature Topr ˚C
Storage temperature Tstg ˚C
1 Reduced by 5.5mW for each increase in Ta of 1˚C over 25˚C.
*
Recommended operating conditions
!!!!
Parameter Symbol Min. Typ. Max. Unit
Power supply voltage 2.0 - 5.5 VV
(Ta = 25°C)
V
CC
Pd mW
(Ta = 25°C)
CC
5.5
1
*
550
-25~+75
-55~+125
Audio ICs
Block diagram
!!!!
BA3571F
Vcc 1
Out 1
Vcc 2
Ripple Filter
IN 1
Bias in
Bias out
39k
Pre
GND
GND
BB SW
Power GND
10987
Out 2
τ
BB SW τ
6
BB SW
5
LP Out
4
LP NF
3
IN 2
2
LP IN
1
Pre GND
CC
V
13 12 11
NC
NC
15 14
16
RF1
NC
17
18
CC
19
20
V
50k
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