WM8778_05 datasheet(4/50 Pages) WOLFSON

Part #	WM8778

Description	24-bit, 192kHz Stereo CODEC

Download	50 Pages

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Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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WM8778

Production Data

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PD Rev 4.0 April 2005

4

PIN DESCRIPTION

NAME

TYPE

DESCRIPTION

1

AINL

Analogue Input

Left channel input

2

ZFLAGR

Digital Output

Right channel zero flag output (external pull-up required)

3

ZFLAGL

Digital Output

Left channel zero flag output (external pull-up required)

4

DACBCLK

Digital Input/Output

DAC audio interface bit clock

5

DACMCLK

Digital Input

Master DAC clock; 256, 384, 512 or 768fs (fs = word clock frequency)

6

DIN

Digital Input

DAC data input

7

DACLRC

Digital Input/Output

DAC left/right word clock

8

ADCBCLK

Digital Input/Output

ADC audio interface bit clock

9

ADCMCLK

Digital Input

Master ADC clock; 256, 384, 512 or 768fs (fs = word clock frequency)

10

DOUT

Digital Output

ADC data output

11

ADCLRC

Digital Input/Output

ADC left/right word clock

12

DGND

Supply

Digital negative supply

13

DVDD

Supply

Digital positive supply

14

MODE

Digital Input

Control interface mode select, tri-level

15

CE\I2S

Digital Input

Serial interface Latch signal

16

DI\DEEMPH

Digital Input/Output

Serial interface data

17

CL\IWL

Digital Input

Serial interface clock

18

VOUTL

Analogue Output

DAC channel left output

19

VOUTR

Analogue Output

DAC channel right output

20

VMIDDAC

Analogue Output

DAC midrail decoupling pin ; 10uF external decoupling

21

DACREFN

Analogue Input

DAC negative reference input

22

DACREFP

Analogue Input

DAC positive reference input

23

VMIDADC

Analogue Output

ADC midrail divider decoupling pin; 10uF external decoupling

24

ADCREFGND

Analogue Output

ADC reference buffer decoupling pin; 10uF external decoupling

25

ADCREFP

Analogue Output

ADC positive reference decoupling pin; 10uF external decoupling

26

AVDD

Supply

Analogue positive supply

27

AGND

Supply

Analogue negative supply and substrate connection

28

AINR

Analogue Input

Right channel input

Note : Digital input pins have Schmitt trigger input buffers.

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WM8778 Datasheet(PDF) 4 Page - Wolfson Microelectronics plc

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