Datasheet > WM8728

WM8728

更新时间： 2024-11-21 22:35:43

品牌	Logo	应用领域
欧胜 - WOLFSON		/
页数	文件大小	规格书
28页	267K
描述
24-bit, 192kHz Stereo DAC with Volume Control and DSD Support

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WM8728 数据手册

WM8728

24-bit, 192kHz Stereo DAC

with Volume Control and DSD Support

Product Preview, Rev 1.2, April 2001

DESCRIPTION

FEATURES

•

Stereo DAC with 24 bit PCM or single bit DSD operation

Audio Performance

The WM8728 is a high performance stereo DAC designed

for audio applications such as DVD, home theatre systems,

and digital TV. The WM8728 supports PCM data input word

lengths from 16 to 32-bits and sampling rates up to 192kHz.

Alternatively the WM8728 can operate in DSD compatible

mode where a 64x bitstream is input for each channel. The

106dB SNR (‘A’ weighted @ 48kHz) DAC

-97dB THD

•

DAC Sampling Frequency: 8kHz - 192kHz

2 or 3-Wire Serial Control Interface or Hardware Control

Programmable Audio Data Interface Modes

WM8728 consists of

a serial interface port, digital

interpolation filters, multi-bit sigma delta modulators and

stereo DAC in a small 20-pin SSOP package. The WM8728

also includes a digitally controllable mute and attenuate

function for each channel.

I²S, Left, Right Justified, DSP

16/20/24/32 bit Word Lengths

•

Independent Digital Volume Control on Each Channel with

127.5dB Range in 0.5dB Steps

The WM8728 supports a variety of connection schemes for

audio DAC control. The 2 or 3-wire MPU serial port provides

access to a wide range of features including on-chip mute,

attenuation and phase reversal. A hardware controllable

interface is also available (DSD operation is only possible in

hardware mode).

•

3.0V - 5.5V Supply Operation

20-pin SSOP Package

Exceeds Dolby Class A Performance Requirements

APPLICATIONS

The WM8728 is an ideal device to interface to AC-3 ,

DTS , and MPEG audio decoders for surround sound

applications, or for use in DVD players supporting DVD-A.

•

DVD-Audio and DVD ‘Universal’ Players

Home theatre systems

Digital TV

Digital broadcast receivers

BLOCK DIAGRAM

LATI2S

MUTEB CSBIWL ZERO

SCKDSD SDIDEM

MODE

CONTROL INTERFACE

WM8728

PCM/DSD

MUX

LOW

PASS

FILTER

SIGMA

DELTA

MODULATOR

MUTE/

ATTEN

RIGHT

DAC

VOUTR

VOUTL

BCKIN

LRCIN

DIN

SERIAL

INTERFACE

DIGITAL FILTERS

LOW

PASS

FILTER

SIGMA

DELTA

MODULATOR

LEFT

DAC

MUX

MUTE/

ATTEN

VMID

VREFP VREFN AGND DGND

MCLK

AVDD DVDD

WOLFSON MICROELECTRONICS LTD

Product Preview data sheets contain

specifications for products in the

formative phase of development. These

products may be changed or discontinued

without notice.

Lutton Court, Bernard Terrace, Edinburgh, EH8 9NX, UK

Tel: +44 (0) 131 667 9386

Fax: +44 (0) 131 667 5176

Email: sales@wolfson.co.uk

2001 Wolfson Microelectronics Ltd.

www.wolfsonmicro.com

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与WM8728相关器件

型号	品牌	获取价格	描述	数据表
WM8728_04	WOLFSON	获取价格	24-bit, 192kHz Stereo DAC with Volume Control
WM8728_12	WOLFSON	获取价格	24-bit, 192kHz Stereo DAC with Volume Control
WM8728EDS	CIRRUS	获取价格	D/A Converter, 24-Bit, 2 Func, CMOS, PDSO20,
WM8728SEDS	WOLFSON	获取价格	24-bit, 192kHz Stereo DAC with Volume Control
WM8728SEDS/R	WOLFSON	获取价格	24-bit, 192kHz Stereo DAC with Volume Control
WM8728SEDS/R	CIRRUS	获取价格	D/A Converter, 2 Func, PDSO20
WM8728SEDS/RV	WOLFSON	获取价格	24-bit, 192kHz Stereo DAC with Volume Control
WM8728SEDS/V	WOLFSON	获取价格	24-bit, 192kHz Stereo DAC with Volume Control
WM8728SEDSRV	ETC	获取价格	24-bit, 192kHz Stereo DAC with Volume Control
WM8728SEDSV	ETC	获取价格	24-bit, 192kHz Stereo DAC with Volume Control

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