Datasheet

MAX9725
CHARGE
PUMP
UVLO/
SHUTDOWN
CONTROL
CLICK-AND-POP
SUPPRESSION
C1N
C1P
PV
SS
V
SS
PGND
SGND
*MAX9725A = 50kΩ.
MAX9725B = 37.5kΩ.
MAX9725C = 25kΩ.
MAX9725D = 100kΩ.
( ) DENOTE BUMPS FOR UCSP.
INR
V
DD
V
SS
V
DD
SGND
OUTR
HEADPHONE
JACK
12
(B2)
9
(C2)
10
(C1)
11
(B1)
1
(A1)
2
(A2)
5
(B4)
8
(C3)
7
(C4)
6
(B3)
C1
1μF
C2
1μF
0.9V TO 1.8V
C3
1μF
C
IN
0.47μF
R
IN
25kΩ
LEFT-
CHANNEL
AUDIO IN
V
SS
V
DD
R
F
*
OUTL
SHDN
3
(A3)
INL
4
(A4)
SGND
MAX9725A–
MAX9725D
C
IN
0.47μF
R
F
*
LEFT-
CHANNEL
AUDIO IN
R
IN
25kΩ
Functional Diagrams
1V, Low-Power, DirectDrive, Stereo Headphone
Amplifier with Shutdown
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