Datasheet > WM8774

WM8774

更新时间： 2024-11-23 08:09:11

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
42页	358K
描述
24 - bit, 192kHz 8 - Channel Input Stereo Codec

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中文翻译

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WM8774 数据手册

WM8774

24-bit, 192kHz 8-Channel Input Stereo Codec

DESCRIPTION

FEATURES

•

Audio Performance

The WM8774 is a high performance, stereo audio codec

with an 8 channel input selector. The WM8774 is ideal for

surround sound processing applications for home hi-fi,

automotive and other audio visual equipment.

−

106dB SNR (‘A’ weighted @ 48kHz) DAC

101dB SNR (‘A’ weighted @ 48kHz) ADC

•

DAC Sampling Frequency: 8kHz – 192kHz

ADC Sampling Frequency: 8kHz – 96kHz

3-Wire SPI Compatible Serial Control Interface

Master or Slave Clocking Mode

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

eight stereo 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

A stereo 24-bit multi-bit sigma delta DAC is 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 analogue volume and mute control, with a set

of input multiplexors allowing selection of an external

analogue input into these volume controls.

16/20/24/32 bit Word Lengths

•

Stereo DAC with independent analogue and digital volume

controls

•

Analogue Bypass Path Feature

Selectable AUX input to the volume controls

Eight stereo ADC inputs with analogue gain adjust from

+19dB to –12dB in 1dB steps

The audio data interface supports I²S, left justified, right

justified and DSP digital audio formats.

•

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

Operation

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.

5V tolerant digital inputs

APPLICATIONS

•

Surround Sound AV Processors and Hi-Fi systems

Automotive Audio

BLOCK DIAGRAM

AIN1L

AIN1R

AIN2L

AIN2R

AIN3L

AIN3R

AIN4L

AIN4R

AUDIO INTERFACE

AND

AIN5L

AIN5R

STEREO

ADC

STEREO

DAC

VOUTL

VOUTR

LOW

PASS

FILTERS

AIN6L

AIN6R

DIGITAL FILTERS

AIN7L

AIN7R

AIN8L

AIN8R

AINOPL

AINOPR

ꢀ

RECL

RECR

CONTROL INTERFACE

MUTE

WM8774

WOLFSON MICROELECTRONICS LTD

Product Preview, June 2002, Rev 1.0

w :: www.wolfsonmicro.com

12 3 4 5 6 7...42

中文翻译

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与WM8774相关器件

型号	品牌	获取价格	描述	数据表
WM8774IFT	WOLFSON	获取价格	24 - bit, 192kHz 8 - Channel Input Stereo Codec
WM8774IFV	WOLFSON	获取价格	24 - bit, 192kHz 8 - Channel Input Stereo Codec
WM8775	WOLFSON	获取价格	24 BIT 96 KHZ ADC WITH 4 CHANNEL I/P MULTIPLEXER
WM8775_06	WOLFSON	获取价格	24-bit, 96kHz ADC with 4 Channel I/P Multiplexer
WM8775EDS	WOLFSON	获取价格	24 BIT 96 KHZ ADC WITH 4 CHANNEL I/P MULTIPLEXER
WM8775EDS/R	WOLFSON	获取价格	24 BIT 96 KHZ ADC WITH 4 CHANNEL I/P MULTIPLEXER
WM8775SEDS	WOLFSON	获取价格	24 BIT 96 KHZ ADC WITH 4 CHANNEL I/P MULTIPLEXER
WM8775SEDS/R	WOLFSON	获取价格	24-bit, 96kHz ADC with 4 Channel I/P Multiplexer
WM8775SEDS/RV	CIRRUS	获取价格	ADC, Delta-Sigma, 24-Bit, 1 Func, CMOS, PDSO28,
WM8776	WOLFSON	获取价格	24 BIT 192KHZ STEREO CODEC WITH 5 CHANNEL I/P MULTIPLEXER

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