Datasheet

MAX9728A/MAX9728B
60mW, DirectDrive, Stereo Headphone
Amplifier with Shutdown
______________________________________________________________________________________ 13
CHARGE
PUMP
UVLO/
SHUTDOWN
CONTROL
CLICK-AND-POP
SUPPRESSION
C1N
C1P
PV
SS
SV
SS
PGND
SGND
*R
IN
AND R
F
VALUES ARE CHOSEN FOR A GAIN -1.5V/V.
( ) TSSOP PACKAGE
INR
V
DD SHDN
ON
OFF
SV
SS
V
DD
SGND
INL
R
F
*
30kΩ
R
IN
*
20kΩ
R
IN*
20kΩ
OUTR
LEFT
AUDIO
INPUT
RIGHT
AUDIO
INPUT
HEADPHONE
JACK
5
(8)
12
(2)
1
(3)
2
(4)
3
(5)
4
(7)
9
(12)
11
(1)
6
(9)
10
(14)
7
(10)
C1
1μF
C2
1μF
4.5V TO 5.5V
C3
1μF
C
IN
0.47μF
SV
SS
V
DD
OUTL
C
IN
0.47μF
8
(11)
R
F*
30kΩ
MAX9728A
Functional Diagram/Typical Operating Circuits