MAX9879 Datasheet, PDF (30/31 Pages) Maxim Integrated Products – Stereo Class D Audio Subsystem with DirectDrive Headphone Amplifier

Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
Typical Application Circuit
1.7V TO 3.6V
2.7V TO 5.5V
C₂
1μF
0.1μF
1μF
C₃
C₃
1μF
1μF
C1N B1
C₁
1μF
C1P A1
VSS
C1
CHARGE
PUMP
VCCIO
E6
1μF
INA2 E4
INA1 D4
1μF
1μF
INB2 E3
CONNECT TO V_CCIO FOR
INB1
1μF
D3
NORMAL OPERATION
SHDN
E5
BIAS
D2
1μF
D6
SDA
SCL
D5
BASEBAND
RECEIVER
AMPLIFIER
10Ω _{RXIN+ B4}
10Ω ^{RXIN- B2}
INPUT A
0dB/+5.5dB/+20dB
INPUT B
0dB/+5.5dB/+20dB
I²C
CONTROL
VDD
E2
PVDDL
A3
PVDDR
B6
MAX9879
-75dB TO 0dB
3dB
3dB
-75dB TO 0dB
E1 HPR
D1 HPL
-75dB TO 0dB
CLASS D
MODULATOR
+18dB
-75dB TO 0dB
BYPASS
CLASS D
MODULATOR
+18dB
C6 OUTR+
A6 OUTR-
A4 OUTL+
A2 OUTL-
C2, C3, C4, C5 A5, B5
B3
GND
PGNDR
PGNDL
PROCESS: BiCMOS
Chip Information
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