![](http://datasheet.mmic.net.cn/Texas-Instruments/TLV320AIC31IRHBTG4_datasheet_107124/TLV320AIC31IRHBTG4_3.png)
DEVICE INFORMATION
PIN ASSIGNMENTS
TLV320AIC31
1
8
32
9
25
16
24
17
www.ti.com ............................................................................................................................................. SLAS497C – AUGUST 2006 – REVISED DECEMBER 2008
TERMINAL FUNCTIONS
TERMINAL
NAME
PIN NO.
I/O
DESCRIPTION
MCLK
1
I
Master clock input
BCLK
2
I/O
Audio serial data bus bit clock input/output
WCLK
3
I/O
Audio serial data bus word clock input/output
DIN
4
I
Audio serial data bus data input
DOUT
5
O
Audio serial data bus data output
DVSS
6
I/O
Digital core / I/O Ground Supply, 0 V
IOVDD
7
I/O
Digital I/O voltage supply, 1.1 V to 3.6 V
SCL
8
I/O
I2C serial clock input
SDA
9
I/O
I2C serial data input/output
IN1LP
10
I
Left input 1 (Single-ended) or Left Input + (Differential)
IN1LM
11
I
Left input – (Diff only)
IN1RP
12
I
Right input 1 (Single-ended) or Right Input + (Differential)
IN1RM
13
I
Right input – (Differential only)
IN2L
14
I
Left input 2 (Single-ended)
MICBIAS
15
O
Microphone bias voltage output
IN2R
16
I
Right input 2 (Single-ended)
AVSS1
17
I
Analog ADC ground supply, 0 V
DRVDD
18
O
Analog ADC and output driver voltage supply, 2.7 V to 3.6 V
HPLOUT
19
O
High power output driver (Left +)
HPLCOM
20
O
High power output driver (Left – or multi-functional)
DRVSS
21
O
Analog output driver ground supply, 0 V
HPRCOM
22
O
High power output driver (Right – or multi-functional)
HPROUT
23
O
High power output driver (Right +)
DRVDD
24
O
Analog output driver voltage supply, 2.7 V to 3.6 V
AVDD
25
I
Analog DAC voltage supply, 2.7 V to 3.6 V
AVSS2
26
I
Analog DAC ground supply, 0 V
LEFT_LOP
27
O
Left line output (+)
LEFT_LOM
28
O
Left line output (–)
RIGHT_LOP
29
O
Right line output (+)
RIGHT_LOM
30
O
Right line output (–)
RESET
31
Reset
DVDD
32
I
Digital core voltage supply, 1.65 V to 1.95 V
Copyright 2006–2008, Texas Instruments Incorporated
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