WM8772SEDSSLASHV datasheet(7/73 Pages) WOLFSON

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Production Data

WM8772

PD Rev 4.2 October 2005

PIN DESCRIPTION – 28 LEAD SSOP

NAME

TYPE

DESCRIPTION

MODE

Digital input

Control format selection

0 = Software control

1 = Hardware control

MCLK

Digital input

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

(combined ADCMCLK and DACMCLK)

BCLK

Digital input/output

Audio interface bit clock (combined ADCBCLK and DACBCLK)

LRC

Digital input/output

Audio left/right word clock (combined ADCLRC and DACLRC)

DVDD

Supply

Digital positive supply

DGND

Supply

Digital negative supply

DIN1

Digital input

DAC channel 1 data input

DIN2

Digital input

DAC channel 2 data input

DIN3

Digital input

DAC channel 3 data input

DOUT

Digital output

ADC data output

ML/I2S

Digital input

Software Mode: Serial interface Latch signal

Hardware Mode: Input Audio Data Format

MC/IWL

Digital input

Software Mode: Serial control interface clock

Hardware Mode: Audio data input word length

MD/DM

Digital input

Software Mode: Serial interface data

Hardware Mode: De-emphasis selection

MUTE

Digital input/output

DAC Zero Flag output or DAC mute input

REFADC

Analogue output

ADC reference buffer decoupling pin; 10uF external decoupling

VREFN

Supply

ADC and DAC negative supply

VREFP

Supply

DAC positive reference supply

VMID

Analogue output

Midrail divider decoupling pin; 10uF external decoupling

AINR

Analogue input

ADC right input

AINL

Analogue input

ADC left input

VOUT1L

Analogue output

DAC channel 1 left output

VOUT1R

Analogue output

DAC channel 1 right output

VOUT2L

Analogue output

DAC channel 2 left output

VOUT2R

Analogue output

DAC channel 2 right output

VOUT3L

Analogue output

DAC channel 3 left output

VOUT3R

Analogue output

DAC channel 3 right output

AGND

Supply

Analogue negative supply and substrate connection

AVDD

Supply

Analogue positive supply

Note: Digital input pins have Schmitt trigger input buffers.

WM8772SEDS/V Datasheet(PDF) 7 Page - Wolfson Microelectronics plc

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