Datasheet > WM8742GEDS/RV

WM8742GEDS/RV

更新时间： 2024-11-22 19:42:27

品牌	Logo	应用领域
凌云 - CIRRUS		光电二极管转换器
页数	文件大小	规格书
65页	902K
描述
D/A Converter,

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中文翻译

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技术参数
数据手册

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WM8742GEDS/RV 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	,	Reach Compliance Code：	compliant
风险等级：	5.81	Base Number Matches：	1

WM8742GEDS/RV 数据手册

WM8742

24-bit 192kHz DAC with Advanced Digital Filtering

DESCRIPTION

FEATURES



Advanced Ultra High Performance Multi-bit Sigma-Delta

Architecture

The WM8742 is a very high performance stereo DAC

designed for audio applications such as professional

recording systems, A/V receivers and high specification CD,

DVD and home theatre systems. The device supports PCM

data input word lengths from 16 to 32-bits and sampling

rates up to 192kHz. The WM8742 also supports DSD bit-

stream data format, in both direct DSD and PCM-converted

DSD modes.



126dB SNR (‘A’-weighted mono @ 48kHz)

123dB SNR (‘A’-weighted stereo @ 48kHz)

121dB SNR (non-weighted stereo @ 48kHz)

-100dB THD @ 48kHz

Differential analogue voltage outputs

High tolerance to clock jitter



PCM Mode

The WM8742 includes fine resolution volume and soft mute

control, digital de-emphasis and a range of advanced digital

filter responses, followed by a digital interpolation filter,

multi-bit sigma delta modulator and stereo DAC. Wolfson’s

patented architecture optimises the linearity of the DAC and

provides maximum insensitivity to clock jitter.



Sampling frequency: 32kHz to 192kHz

Input data word length support: 16 to 32-bit

Supports all standard audio interface formats

Selectable advanced digital filter responses



Includes linear/minimum phase and range of

tailored characteristics



Enables low pre-ringing, minimal latency

The digital filters include several selectable roll-off and

performance characteristics. The user can select between

standard sharp or slow roll-off responses. In addition, the

WM8742 includes a selection of advanced digital filter

characteristics including non-half band filters and minimum

phase filters.



Optional interface to industry standard external filters

Digital volume control in 0.125dB steps with soft ramp

and soft mute

Anti-clipping mode to prevent distortion even with input

signals recorded up to 0dB



Selectable de-emphasis support

Zero Flag output

This flexibility provides

range of benefits, such as

significantly reduced pre-ringing and minimal group delay.

The internal digital filters can also be by-passed and the

WM8742 used with an external digital filter.



DSD Mode



DSD bit-stream support for SACD applications

Support for normal or phase modulated bit-streams

Direct or PCM converted DSD paths (DSD Plus)

DSD mute

The WM8742 supports two connection schemes for audio

DAC control. The 2/3 wire serial control interface provides

access to all features. A range of features can also be

accessed by hardware control interface.

Hardware or software control modes:

2 and 3 wire serial control interface support





Pin compatible with WM8740 and WM8741

4.5V to 5.5V analogue, 3.15V to 3.6V digital supply

operation

The WM8742 is available in

a convenient 28-SSOP

package, and is pin compatible with the WM8740 and

WM8741.



28-lead SSOP Package

APPLICATIONS



Professional audio systems

CD, DVD, SACD audio

Home theatre systems

A/V receivers

WOLFSON MICROELECTRONICS plc

Production Data, February 2013, Rev 4.3

12 3 4 5 6 7...65

中文翻译

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与WM8742GEDS/RV相关器件

型号	品牌	获取价格	描述	数据表
WM8742GEDS/V	CIRRUS	获取价格	D/A Converter,
WM8746	WOLFSON	获取价格	24BIT 192KHZ 6 CHANNEL DAC WITH VOLUME CONTROL
WM8746_06	WOLFSON	获取价格	24-bit, 192kHz 6-Channel DAC with Volume Control
WM8746EDS	WOLFSON	获取价格	24BIT 192KHZ 6 CHANNEL DAC WITH VOLUME CONTROL
WM8746EDS/R	CIRRUS	获取价格	D/A Converter, 6 Func, PDSO28
WM8746SEDS	WOLFSON	获取价格	24-bit, 192kHz 6-Channel DAC with Volume Control
WM8746SEDS/R	WOLFSON	获取价格	24-bit, 192kHz 6-Channel DAC with Volume Control
WM8750BL	WOLFSON	获取价格	Stereo CODEC for Portable Audio Applications
WM8750BL_12	WOLFSON	获取价格	Stereo CODEC for Portable Audio Applications
WM8750BLGEFL	WOLFSON	获取价格	Stereo CODEC for Portable Audio Applications

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