Owner's manual

MAX9770
1.2W Low-EMI, Filterless, Mono Class D Amplifier
with Stereo DirectDrive Headphone Amplifiers
20 ______________________________________________________________________________________
System Diagram
MP3 DAC
MAX9770
IN1_L
2.5V TO 5.5V
2.5V TO 5.5V
IN1_R
1µF
1µF
0.47µF
0.47µF
GND PGND
OUT+
OUT-
HPOUTL
HPS
HPOUTR
V
DD
PV
DD
FM RADIO
MODULE
IN2_L
IN2_R
0.47µF
0.47µF
BASEBAND
PROCESSOR
SHDN
MONO
0.47µF
SEL1
SEL2
SELM
V
DD
GAIN1
V
DD
GAIN2
1µF
0.047µF
BIAS
CPV
SS
CPV
DD
V
SS
CPGND
C1P
C1N
1µF
1µF