Owner's manual

MAX9877
Low RF Susceptibility, Mono Audio
Subsystem with DirectDrive Headphone Amplifier
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
30 __________________ Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.
Typical Application Circuit
CHARGE
PUMP
MIXER
AND
MUX
CLASS D
MODULATOR
+12dB
INPUT A
0dB/+9dB/+20dB
INA2
INA1
D1
D2
C1N
INPUT A
INPUT B
C1P
A4
A5
BIAS
B2
B5
D5
OUT+
A1 HPR
A2 HPL
OUT-
I
2
C
CONTROL
SDA
SCL
B3
C3
BASEBAND
RECEIVER
AMPLIFIER
RxIN+
RxIN-
B4
D4
-75dB TO 0dB
0dB
0dB
-75dB TO 0dB
-75dB TO 0dB
BYPASS
C1
1μF
1μF
1μF
INPUT B
0dB/+9dB/+20dB
INB2
INB1
C1
C2
1μF
1μF
1μF
OPEN-DRAIN GPIO
9.1Ω
9.1Ω
D3
GND
C4
PGND
MAX9877
A3
V
SS
C2
1μF
B1
V
DD
1μF
V
BATT
V
BATT
C5
PV
DD
C3
1μF
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages
.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
20 WLP W202A2+2
21-0059