Datasheet > WM8778EDS

WM8778EDS

更新时间： 2024-11-06 22:41:27

品牌	Logo	应用领域
欧胜 - WOLFSON		解码器编解码器电信集成电路光电二极管 PC
页数	文件大小	规格书
50页	493K
描述
24 BIT 192KHZ STEREO CODEC

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中文翻译

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WM8778EDS 数据手册

WM8778

24-bit, 192kHz Stereo Codec

DESCRIPTION

FEATURES

•

Audio Performance

The WM8778 is a high performance, stereo audio codec.

It is ideal for surround sound processing applications for

home hi-fi, DVD-RW and other audio visual equipment.

−

108dB SNR (‘A’ weighted @ 48kHz) DAC

102dB SNR (‘A’ weighted @ 48kHz) ADC

•

DAC Sampling Frequency: 32kHz – 192kHz

ADC Sampling Frequency: 32kHz – 96kHz

The stereo 24-bit multi-bit sigma delta ADC has

programmable gain with automatic level control. Digital

audio output word lengths from 16-32 bits and sampling

rates from 32kHz to 96kHz are supported.

Stereo ADC input analogue gain adjust from +24dB to –21dB

in 0.5dB steps

•

ADC digital gain from -21.5dB to -103dB in 0.5dB steps

A stereo multi-bit sigma delta DAC is used with digital

audio input word lengths from 16-32 bits and sampling

rates from 32kHz to 192kHz. A multiplexor after the DAC

allows the selection of either an external analogue input

or DAC playback into the line outputs.

Programmable Automatic Level Control (ALC) or Limiter on

ADC input.

•

Stereo DAC with analogue line outputs.

3-Wire SPI Compatible or 2-wire Serial Control Interface

Hardware Control Mode

The WM8778 supports fully independent sample rates

for the ADC and DAC. The audio data interface supports

I²S, left justified, right justified and DSP formats.

Master or Slave Clocking Mode

Programmable Audio Data Interface Modes

I²S, Left, Right Justified or DSP

The device is controlled in software via a 2 or 3 wire

serial interface which provides access to all features

including volume controls, mutes, and de-emphasis

facilities. It can also be controlled in hardware which

gives access to the most commonly used features.

Control interface selection is done via the MODE pin (tri-

level). The device is available in a 28-pin SSOP package.

−

16/20/24/32 bit Word Lengths

•

Analogue Bypass Path Feature

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

APPLICATIONS

•

Surround Sound AV Processors and Hi-Fi systems

DVD-RW

BLOCK DIAGRAM

WOLFSON MICROELECTRONICS plc

Product Preview, June 2004, Rev 1.7

w :: www.wolfsonmicro.com

12 3 4 5 6 7...50

中文翻译

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与WM8778EDS相关器件

型号	品牌	获取价格	描述	数据表
WM8778EDS/R	WOLFSON	获取价格	24 BIT 192KHZ STEREO CODEC
WM8778SEDS	WOLFSON	获取价格	24 BIT 192KHZ STEREO CODEC
WM8778SEDS/R	WOLFSON	获取价格	24 BIT 192KHZ STEREO CODEC
WM8778SEDS/RV	CIRRUS	获取价格	PCM Codec, 1-Func, CMOS, PDSO28, 10.20 X 5.30 MM, 1.75 MM HEIGHT, LEAD FREE, MO-150AH, SSO
WM8778SEDS/V	CIRRUS	获取价格	PCM Codec, 1-Func, CMOS, PDSO28, 10.20 X 5.30 MM, 1.75 MM HEIGHT, LEAD FREE, MO-150AH, SSO
WM8781	WOLFSON	获取价格	24-Bit, 192kHz Stereo ADC
WM8781GEDR	WOLFSON	获取价格	24-Bit, 192kHz Stereo ADC
WM8781GEDS	WOLFSON	获取价格	24-Bit, 192kHz Stereo ADC
WM8781GEDS/RV	CIRRUS	获取价格	Consumer Circuit, CMOS, PDSO20, 7.20 X 5.30 MM, 1.75 MM HEIGHT, MO-150AE, SSOP-20
WM8782	WOLFSON	获取价格	24-Bit, 192kHz Stereo ADC

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