WM8774IFT/V 查看數據表（PDF） - Wolfson Microelectronics plc
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WM8774IFT/V Datasheet PDF : 42 Pages
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PIN DESCRIPTION
PIN
NAME
1
AIN1L
2
AIN1R
3
AIN2L
4
AIN2R
5
AIN3L
6
AIN3R
7
AIN4L
8
AIN4R
9
AIN5L
10
AIN5R
11
AIN6L
12
AIN6R
13
AIN7L
14
AIN7R
15
AIN8L
16
AIN8R
17
AINOPL
18
AINVGL
19
AINVGR
20
AINOPR
21
RECL
22
RECR
23
REFADC
24
VMIDADC
25
AGND1
26
AVDD1
27
AUXL
28
AUXR
29
30
31
32
33
AVDD2
34
VOUTL
35
VOUTR
36
DACREFP1
37
38
GR1
39
40
VMIDDAC
41
42
GR2
43
44
DACREFP2
45
46
47
AGND2
48
DGND
49
DVDD
WM8774
TYPE
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
Analogue Output
Analogue Input
Analogue Input
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Supply
Supply
Analogue input
Analogue input
NC
NC
NC
NC
Supply
Analogue output
Analogue output
Supply
NC
Supply
NC
Analogue output
NC
Supply
NC
Supply
NC
NC
Supply
Supply
Supply
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
Left channel multiplexor output
Left channel multiplexor virtual ground
Right channel multiplexor virtual ground
Right channel multiplexor output
Left channel input mux select output
Right channel input mux select output
ADC reference buffer decoupling pin; 10uF external decoupling
ADC midrail divider decoupling pin; 10uF external decoupling
Analogue negative supply and substrate connection
Analogue positive supply
Multiplexor channel left virtual ground input
3.1 Multiplexor channel right virtual ground input
No connection
No connection
No connection
No connection
Analogue positive supply
DAC channel 1 left output
DAC channel 1 right output
DAC positive reference supply
No connection
DAC ground reference
No connection
DAC midrail decoupling pin ; 10uF external decoupling
No connection
DAC ground reference
No connection
DAC positive reference supply
No connection
No connection
Analogue negative supply and substrate connection
Digital negative supply
Digital positive supply
PP Rev 1.0 June 2002
3
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