MAX9776 Maxim Integrated Products, MAX9776 Datasheet - Page 16

• Manufacturer Part Number: MAX9776
• Description: (MAX9775 / MAX9776) Stereo Class D Audio Subsystem
• Manufacturer: Maxim Integrated Products

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2 x 1.5W, Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
16
26, 28, 31
7, 8, 23,
TQFN
4, 29
EP
10
11
12
13
14
15
16
17
18
19
20
21
22
24
25
27
30
32
______________________________________________________________________________________
1
2
3
5
6
9
PIN
B1, B2,
E6, F2,
D1, F3
UCSP
F4, F5
D2
C1
C2
A1
A2
B3
A3
A4
B4
A5
A6
B5
B6
C5
C6
D6
D5
F1
E1
E5
F6
E4
E3
E2
—
CPGND
CPV
OUTRx
CPV
NAME
PGND
VBIAS
OUT+
SHDN
PV
OUT-
INC1
INC2
INB2
INB1
GND
INA2
INA1
SDA
C1N
HPR
SCL
C1P
HPL
V
V
I.C.
EP
DD
SS
DD
DD
SS
Class D Power Supply
Negative Left-Speaker Output
Serial Clock Input. Connect a 1kΩ pullup resistor from SCL to V
Power Ground
Positive Left-Speaker Output
Serial Data Input. Connect a 1kΩ pullup resistor from SDA to V
Internal Connection. Leave unconnected. This pin is internally connected to the signal path.
Do not connect together or to any other pin.
Charge-Pump Power Supply
Charge-Pump Flying Capacitor Positive Terminal
Common-Mode Bias
Charge-Pump GND
Charge-Pump Flying Capacitor Negative Terminal
Input C1. Left input or positive input (see Table 5a).
Charge-Pump Output. Connect to V
Left Headphone Output
Headphone Amplifier Negative Power Supply. Connect to CPV
Right Headphone Output
Input C2. Right input or negative input (see Table 5a).
Mono Receiver Output
Analog Power Supply
Input B2. Right input or negative input (see Table 5a).
Input B1. Left input or positive input (see Table 5a).
Analog Ground
Input A2. Right input or negative input (see Table 5a).
Input A1. Left input or positive input (see Table 5a).
Active-Low Hardware Shutdown
Exposed Pad. The external pad lowers the package’s thermal impedance by providing a
direct heat conduction path from the die to the PCB. The exposed pad is internally connected
to GND. Connect the exposed thermal pad to the GND plane.
SS
.
FUNCTION
Pin Description—MAX9776
DD
SS
DD
.
.
.