WM8775 Datasheet, PDF (4/36 Pages) Wolfson Microelectronics plc – 24 BIT 96 KHZ ADC WITH 4 CHANNEL I/P MULTIPLEXER

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