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