WM8771FT WOLFSON [Wolfson Microelectronics plc], WM8771FT Datasheet

WM8771FT

Manufacturer Part Number

WM8771FT

Description

24-bit, 192kHz 8-Channel Codec

Manufacturer

WOLFSON [Wolfson Microelectronics plc]

Datasheet

1.WM8771FT.pdf (44 pages)

Current page: 1 of 44
Download datasheet (337Kb)

DESCRIPTION

The WM8771 is a high performance, multi-channel audio

codec. The WM8771 is ideal for surround sound processing

applications for home hi-fi, automotive and other audio

visual equipment.

A stereo 24-bit multi-bit sigma delta ADC is used with a

three channel input selector. Each channel has analogue

domain mute and programmable gain control. Digital audio

output word lengths from 16-32 bits and sampling rates

from 8kHz to 96kHz are supported.

Four stereo 24-bit multi-bit sigma delta DACs are used with

oversampling digital interpolation filters. Digital audio input

word lengths from 16-32 bits and sampling rates from 8kHz

to 192kHz are supported. Each DAC channel has

independent digital attenuation and mute control. The audio

data interface supports I2S, left justified, right justified and

DSP digital audio formats.

The device is controlled via a 3 wire serial interface. The

interface provides access to all features including channel

selection, volume controls, mutes, de-emphasis and power

management facilities. The device is available in a 64-pin

TQFP package.

BLOCK DIAGRAM

WOLFSON MICROELECTRONICS LTD

w :: www.wolfsonmicro.com

CCB is a trademark of SANYO ELECTRIC CO., LTD

AINOPR

AINOPL

REC1R

REC2R

REC3R

REC1L

REC2L

REC3L

AIN1R

AIN2R

AIN3R

AIN4R

AIN5R

AIN6R

AIN7R

AIN8R

AIN1L

AIN2L

AIN3L

AIN4L

AIN5L

AIN6L

AIN7L

AIN8L

MUTE

24-bit, 192kHz 8-Channel Codec

STEREO

ADC

CCB is SANYO’s original bus format and all the bus addresses are controlled by SANYO.

CONTROL INTERFACE

AUDIO INTERFACE

DIGITAL FILTERS

FEATURES

APPLICATIONS

Surround Sound Processors

Automotive Audio

Audio Performance

DAC Sampling Frequency: 8kHz – 192kHz

ADC Sampling Frequecncy: 8kHz – 96kHz

3-Wire SPI or CCB MPU Serial Control Interface

Master or Slave Clocking Mode

Programmable Audio Data Interface Modes

Four Independent Stereo DAC Audio Outputs

Eight stereo ADC inputs with analogue gain adjust from

+19dB to –12dB in 1dB steps

2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supply

Operation

5V tolerant digital inputs

64-Pin TQFP Package

108dB SNR (‘A’ weighted @ 48kHz) DAC

97dB SNR (‘A’ weighted @ 48kHz) ADC

16/20/24/32 bit Word Lengths

S, Left, Right Justified or DSP

FILTERS

DIGITAL

Product Preview, December 2001, Rev 2.0

STEREO

DAC

2001 Wolfson Microelectronics Ltd.

WM8771

FILTERS

PASS

LOW

WM8771

VOUT1L

VOUT1R

VOUT2L

VOUT2R

VOUT3L

VOUT3R

VOUT4L

VOUT4R

Related parts for WM8771FT

Related keywords

WM8771FT datasheet
WM8771FT data sheet
WM8771FT pdf datasheet
WM8771FT component
WM8771FT part
WM8771FT distributor
WM8771FT RoHS
WM8771FT datasheet download