MAX9879 Maxim Integrated Products, MAX9879 Datasheet - Page 30

• Manufacturer Part Number: MAX9879
• Description: Stereo Class D Audio Subsystem
• Manufacturer: Maxim Integrated Products

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Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
30
CONNECT TO V
NORMAL OPERATION
BASEBAND
AMPLIFIER
RECEIVER
______________________________________________________________________________________
1μF
CCIO
FOR
1μF
C
10Ω
10Ω
1
1μF
1μF
1μF
1μF
RXIN+
SHDN
RXIN-
INA2
INA1
INB2
INB1
BIAS
C1N
C1P
SDA
SCL
B1
E4
D4
E3
D3
E5
D2
D6
D5
B4
B2
A1
0dB/+5.5dB/+20dB
0dB/+5.5dB/+20dB
CONTROL
CHARGE
INPUT A
INPUT B
PUMP
I
2
C
V
C1
SS
C
1μF
1.7V TO 3.6V
2
E6
V
CCIO
0.1μF
C2, C3, C4, C5
GND
PROCESS: BiCMOS
PGNDR
A5, B5
BYPASS
E2
V
DD
-75dB TO 0dB
-75dB TO 0dB
-75dB TO 0dB
-75dB TO 0dB
Typical Application Circuit
PGNDL
1μF
2.7V TO 5.5V
B3
A3
PVDDL
MODULATOR
MODULATOR
CLASS D
CLASS D
C
1μF
+18dB
+18dB
3dB
3dB
3
B6
MAX9879
PVDDR
Chip Information
C
1μF
3
D1
C6
E1
A6
A4
A2
OUTR+
OUTR-
OUTL+
OUTL-
HPR
HPL