5V, Differential Input, DirectDrive, 130mW
Stereo Headphone Amplifiers with Shutdown
System Diagram
V
DD
0.1μF
15kΩ
0.1μF
15kΩ
INR
OUTR+
OUTR-
V
DD
PV
DD
0.1μF
MAX9710
1μF
BIAS
SHDN
INL
AUX_IN
1μF
OUT
OUTL-
OUTL+
0.1μF
15kΩ
MAX4060
V
DD
15kΩ
CODEC
BIAS
V
2.2kΩ
10kΩ
10kΩ
DD
0.1μF
0.1μF
IN-
IN+
IN-
V
DD
Q
Q
MAX961
100kΩ
100kΩ
0.1μF
IN+
INL+
INR+
SHDN
1μF
1μF
OUTL
INL-
INR-
MAX9722B
V
DD
OUTR
PV
SS
SV
SS
PV
SV
DD
DD
1μF
1μF
C1P
CIN
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 or a small electrically isolated copper plane.
SS
Do not connect to PGND, SGND, PV , or SV
.
DD
DD
16 ______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
