Datasheet

MAX9722A/MAX9722B
5V, Differential Input, DirectDrive, 130mW
Stereo Headphone Amplifiers with Shutdown
16 ______________________________________________________________________________________
System Diagram
MAX9710
MAX961
OUTR+
OUTR-
OUTL-
OUTL+
INR
INL
BIAS
PV
DD
V
DD
SHDN
15kΩ
15kΩ
15kΩ
15kΩ
V
DD
0.1μF
0.1μF
0.1μF
1μF
MAX4060
MAX9722B
Q
Q
IN+
IN-
0.1μF
INL+
INR+
OUTL
OUTR
C1P CIN
PV
SS
PV
DD
SV
DD
SV
SS
SHDN
1μF
1μF
1μF
INL-
INR-
AUX_IN
BIAS
IN+
IN-
2.2kΩ
0.1μF
0.1μF
0.1μF
CODEC
OUT
1μF
100kΩ
100kΩ
V
DD
V
DD
10kΩ
10kΩ
1μF
V
DD
V
DD
1μF
The thin QFN package features an exposed paddle that
improves thermal efficiency of the package. The
MAX9722A/MAX9722B do not require additional
heatsinking. The exposed paddle can be either connect-
ed to PV
SS
or a small electrically isolated copper plane.
Do not connect to PGND, SGND, PV
DD
, or SV
DD
.