WM8728SEDS/R 데이터 시트보기 (PDF) - Wolfson Microelectronics plc

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WM8728SEDS/R

24-bit, 192kHz Stereo DAC with Volume Control

Wolfson Microelectronics plc 

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WM8728

24-bit, 192kHz Stereo DAC with

Volume Control

DESCRIPTION

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.

The 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.

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

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.

BLOCK DIAGRAM

FEATURES

• Stereo DAC with 24 bit PCM

• Audio Performance

- 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

- 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

• 3.0V - 5.5V Supply Operation

• 20-pin SSOP Package

• Exceeds Dolby Class A Performance Requirements

APPLICATIONS

• DVD-Audio and DVD ‘Universal’ Players

• Home theatre systems

• Digital TV

• Digital broadcast receivers

WOLFSON MICROELECTRONICS plc

w :: www.wolfsonmicro.com

Production Data, April 2004, Rev 4.2

Copyright 2004 Wolfson Microelectronics plc

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