WM8778SEDS/R(2004) Просмотр технического описания (PDF) - Wolfson Microelectronics plc

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Компоненты Описание

производитель

WM8778SEDS/R
(Rev.:2004)

24-bit, 192kHz Stereo Codec

Wolfson Microelectronics plc 

WM8778

PIN DESCRIPTION

Product Preview

PIN

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 (5V tolerant)

15

CE\I2S

Digital Input Serial interface Latch signal (5V tolerant)

16

DI\DEEMPH Digital Input/Output Serial interface data (5V tolerant)

17

CL\IWL

Digital Input Serial interface clock (5V tolerant)

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 and pins 14-17 are 5V tolerant.

w

PP Rev 1.7 June 2004

4

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