WM8775
PIN DESCRIPTION
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
VMIDADC
ADCREFGND
ADCREFP
AVDD
AGND
AINVGR
AINOPR
AINVGL
AINOPL
AIN4R
AIN4L
AIN3R
AIN3L
AIN2R
AIN2L
AIN1R
NAME
AIN1L
BCLK
MCLK
DOUT
ADCLRC
DGND
DVDD
MODE
CE
DI
CL
TYPE
Analogue Input
Digital input/output
Digital input
Digital output
Digital input/output
Supply
Supply
Digital Input
Digital Input
Digital input/output
Digital input
NC
Analogue Output
Supply
Analogue Output
Supply
Supply
Analogue Input
Analogue Output
Analogue Input
Analogue Output
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
ADC audio interface bit clock
DESCRIPTION
Channel 1 left input multiplexor virtual ground
Product Preview
Master ADC clock; 256, 384, 512 or 768fs (fs = word clock frequency)
ADC data output
ADC left/right word clock
Digital negative supply
Digital positive supply
Serial Interface Mode select (5V tolerant)
Serial Interface Latch signal (5V tolerant)
Serial interface data (5V tolerant)
Serial interface clock (5V tolerant)
No connection
ADC midrail divider decoupling pin; 10uF external decoupling
ADC negative supply and substrate connection
ADC positive reference decoupling pin; 10uF external decoupling
Analogue positive supply
Analogue negative supply and substrate connection
Right channel multiplexor virtual ground
Right channel multiplexor output
Left channel multiplexor virtual ground
Left channel multiplexor output
Channel 4 right input multiplexor virtual ground
Channel 4 left input multiplexor virtual ground
Channel 3 right input multiplexor virtual ground
Channel 3 left input multiplexor virtual ground
Channel 2 right input multiplexor virtual ground
Channel 2 left input multiplexor virtual ground
Channel 1 right input multiplexor virtual ground
Note
: Digital input pins have Schmitt trigger input buffers and pins 8, 9, 10 and 11 are 5V tolerant.
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PP Rev 1.8, June 2004
4
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
