WM8778EDSSLASHR datasheet(4/50 Pages) WOLFSON

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WM8778

Product Preview

PP Rev 1.7 June 2004

PIN DESCRIPTION

NAME

TYPE

DESCRIPTION

AINL

Analogue Input

Left channel input

ZFLAGR

Digital Output

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

ZFLAGL

Digital Output

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

DACBCLK

Digital Input/Output

DAC audio interface bit clock

DACMCLK

Digital Input

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

DIN

Digital Input

DAC data input

DACLRC

Digital Input/Output DAC left/right word clock

ADCBCLK

Digital Input/Output

ADC audio interface bit clock

ADCMCLK

Digital Input

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

DOUT

Digital Output

ADC data output

ADCLRC

Digital Input/Output ADC left/right word clock

DGND

Supply

Digital negative supply

DVDD

Supply

Digital positive supply

MODE

Digital Input

Control interface mode select, tri-level (5V tolerant)

CE\I2S

Digital Input

Serial interface Latch signal (5V tolerant)

DI\DEEMPH

Digital Input/Output

Serial interface data (5V tolerant)

CL\IWL

Digital Input

Serial interface clock (5V tolerant)

VOUTL

Analogue Output

DAC channel left output

VOUTR

Analogue Output

DAC channel right output

VMIDDAC

Analogue Output

DAC midrail decoupling pin ; 10uF external decoupling

DACREFN

Analogue Input

DAC negative reference input

DACREFP

Analogue Input

DAC positive reference input

VMIDADC

Analogue Output

ADC midrail divider decoupling pin; 10uF external decoupling

ADCREFGND

Analogue Output

ADC reference buffer decoupling pin; 10uF external decoupling

ADCREFP

Analogue Output

ADC positive reference decoupling pin; 10uF external decoupling

AVDD

Supply

Analogue positive supply

AGND

Supply

Analogue negative supply and substrate connection

AINR

Analogue Input

Right channel input

Note : Digital input pins have Schmitt trigger input buffers and pins 14-17 are 5V tolerant.

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