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WM8771
PIN DESCRIPTION
PIN
NAME
TYPE
DESCRIPTION
Channel 1 left input multiplexor virtual ground
Channel 1 right input multiplexor virtual ground
Channel 2 left input multiplexor virtual ground
Channel 2 right input multiplexor virtual ground
Channel 3 left input multiplexor virtual ground
Channel 3 right input multiplexor virtual ground
Channel 4 left input multiplexor virtual ground
Channel 4 right input multiplexor virtual ground
Channel 5 left input multiplexor virtual ground
Channel 5 right input multiplexor virtual ground
Channel 6 left input multiplexor virtual ground
Channel 6 right input multiplexor virtual ground
Channel 7 left input multiplexor virtual ground
Channel 7 right input multiplexor virtual ground
Channel 8 left input multiplexor virtual ground
Channel 8 right input multiplexor virtual ground
1
AIN1L
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
2
AIN1R
3
AIN2L
4
AIN2R
5
AIN3L
6
AIN3R
7
AIN4L
8
AIN4R
9
AIN5L
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
AIN5R
AIN6L
AIN6R
AIN7L
AIN7R
AIN8L
AIN8R
AINOPL
AINVGL
AINVGR
AINOPR
REC1L
REC1R
REFADC
VMIDADC
AGND1
AVDD1
NC
Analogue Output Left channel multiplexor output
Analogue Input
Analogue Input
Left channel multiplexor virtual ground
Right channel multiplexor virtual ground
Analogue Output Right channel multiplexor output
Analogue Output Left channel input mux select output 1
Analogue Output Right channel input mux select output 1
Analogue Output ADC reference buffer decoupling pin; 10uF external decoupling
Analogue Output ADC midrail divider decoupling pin; 10uF external decoupling
Supply
Supply
Analogue negative supply and substrate connection
Analogue positive supply
No Connect
No Connect
NC
REC2L
REC2R
REC3L
REC3R
AVDD2
VOUT1L
VOUT1R
DACREFP1
VOUT2L
GR1
Analogue Output Left channel input mux select output 2
Analogue Output Right channel input mux select output 2
Analogue Output Left channel input mux select output 3
Analogue Output Right channel input mux select output 3
Supply
Analogue output
Analogue output
Supply
Analogue positive supply
DAC channel 1 left output
DAC channel 1 right output
DAC positive reference supply
DAC channel 2 left output
DAC ground reference
Analogue output
Supply
VOUT2R
VMIDDAC
VOUT3L
GR2
Analogue output
Analogue output
Analogue output
Supply
DAC channel 2 right output
DAC midrail decoupling pin ; 10uF external decoupling
DAC channel 3 left output
DAC ground reference
VOUT3R
DACREFP2
VOUT4L
VOUT4R
AGND2
DGND
Analogue output
Supply
DAC channel 3 right output
DAC positive reference supply
DAC channel 4 left output
DAC channel 4 right output
Analogue negative supply and substrate connection
Digital negative supply
Analogue output
Analogue output
Supply
Supply
DVDD
Supply
Digital positive supply
ZFLAG1
ZFLAG2
Digital output
Digital output
DAC Zero Flag output
DAC Zero Flag output
PP Rev 2.0 December 2001
3
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
