Datasheet > WM8771

WM8771

更新时间： 2024-11-26 12:00:19

品牌	Logo	应用领域
欧胜 - WOLFSON		解码器编解码器
页数	文件大小	规格书
44页	336K
描述
24-bit, 192kHz 8-Channel Codec

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WM8771 数据手册

WM8771

24-bit, 192kHz 8-Channel Codec

DESCRIPTION

FEATURES

•

Audio Performance

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.

−

108dB SNR (‘A’ weighted @ 48kHz) DAC

97dB SNR (‘A’ weighted @ 48kHz) ADC

•

DAC Sampling Frequency: 8kHz – 192kHz

ADC Sampling Frequecncy: 8kHz – 96kHz

3-Wire SPI or CCB MPU Serial Control Interface

Master or Slave Clocking Mode

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.

Programmable Audio Data Interface Modes

−

I²S, Left, Right Justified or DSP

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.

16/20/24/32 bit Word Lengths

•

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

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.

APPLICATIONS

•

Surround Sound Processors

Automotive Audio

BLOCK DIAGRAM

AIN1L

AIN1R

VOUT1L

VOUT1R

LOW

PASS

FILTERS

DIGITAL

FILTERS

STEREO

DAC

AIN2L

AIN2R

AIN3L

AIN3R

VOUT2L

VOUT2R

LOW

PASS

FILTERS

AIN4L

AIN4R

DIGITAL

FILTERS

STEREO

DAC

AUDIO INTERFACE

AIN5L

AIN5R

STEREO

ADC

AIN6L

AIN6R

VOUT3L

VOUT3R

DIGITAL FILTERS

LOW

PASS

FILTERS

DIGITAL

FILTERS

STEREO

DAC

AIN7L

AIN7R

AIN8L

AIN8R

VOUT4L

VOUT4R

LOW

PASS

FILTERS

DIGITAL

FILTERS

STEREO

DAC

AINOPL

AINOPR

REC1L

REC1R

MUTE

CONTROL INTERFACE

REC2L

REC2R

REC3L

REC3R

WM8771

CCB is a trademark of SANYO ELECTRIC CO., LTD

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

WOLFSON MICROELECTRONICS LTD

Product Preview, December 2001, Rev 2.0

w :: www.wolfsonmicro.com

12 3 4 5 6 7...44

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与WM8771相关器件

型号	品牌	获取价格	描述	数据表
WM8771FT	WOLFSON	获取价格	24-bit, 192kHz 8-Channel Codec
WM8771FTV	WOLFSON	获取价格	24-bit, 192kHz 8-Channel Codec
WM8771FV	WOLFSON	获取价格	24-bit, 192kHz 8-Channel Codec
WM8771IFT/V	CIRRUS	获取价格	PCM Codec, 1-Func, CMOS, PDSO64, 10 X 10 MM, 1 MM HEIGHT, MS-026ACD, TQFP-64
WM8772	WOLFSON	获取价格	24 BIT 192KHZ 6 CHANNEL CODEC WITH VOLUME CONTROL
WM8772_05	WOLFSON	获取价格	24-bit, 192kHz 6-Channel Codec with Volume Control
WM8772EDS	CIRRUS	获取价格	PCM Codec, 1-Func, CMOS, PDSO28, 10.20 X 5.30 MM, 1.75 MM HEIGHT, MO-150AH, SSOP-28
WM8772EDS/R	CIRRUS	获取价格	PCM Codec, 1-Func, CMOS, PDSO28, 10.20 X 5.30 MM, 1.75 MM HEIGHT, MO-150AH, SSOP-28
WM8772EFT	WOLFSON	获取价格	24 BIT 192KHZ 6 CHANNEL CODEC WITH VOLUME CONTROL
WM8772EFT/R	WOLFSON	获取价格	24 BIT 192KHZ 6 CHANNEL CODEC WITH VOLUME CONTROL

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