Datasheet

MAX9725
1V, Low-Power, DirectDrive, Stereo Headphone
Amplifier with Shutdown
14 ______________________________________________________________________________________
CHARGE
PUMP
UVLO/
SHUTDOWN
CONTROL
CLICK-AND-POP
SUPPRESSION
C1N
C1P
PV
SS
V
SS
PGND
SGND
( ) DENOTE BUMPS FOR UCSP.
INR
V
DD
V
DD
V
SS
SGND
OUTR
HEADPHONE
JACK
12
(B2)
9
(C2)
10
(C1)
11
(B1)
1
(A1)
2
(A2)
5
(B4)
8
(C3)
7
(C4)
R
F
R
IN
C
IN
1μF
C
IN
1μF
R
F
6
(B3)
C1
1μF
C2
1μF
0.9V TO 1.8V
C3
1μF
V
SS
V
DD
OUTL
SHDN
3
(A3)
INL
4
(A4)
SGND
MAX9725E
RIGHT-
CHANNEL
AUDIO IN
LEFT-CHANNEL
AUDIO IN
R
IN
Functional Diagrams (continued)