WM8718SEDSSLASHR datasheet(1/27 Pages) WOLFSON

부품명	WM8718SEDS/R

상세설명	24 BIT DIFFERENTIAL STEREO DAC WITH VOLUME CONTROL

PDF	27 Pages

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제조업체	WOLFSON [Wolfson Microelectronics plc]

홈페이지	http://www.wolfsonmicro.com

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WM8718

24 Bit Differential Stereo DAC with Volume Control

WOLFSON MICROELECTRONICS plc

www.wolfsonmicro.com

Production Data, March 2004, Rev 4.1

Copyright

2004 Wolfson Microelectronics plc

DESCRIPTION

The WM8718 is a high performance differential stereo DAC

designed for audio applications such as DVD, home theatre

systems and digital TV. The WM8718 supports PCM data

input word lengths from 16 to 32-bits and sampling rates up

to 192kHz. The WM8718 consists of a serial interface port,

digital interpolation filters, multi-bit sigma delta modulators

and differential stereo DAC in a small 20-pin SSOP

package.

The WM8718 includes a digitally controllable

mute, an attenuate function and zero flag output for each

channel.

The 3-wire serial control port provides access to a wide

range of features including on-chip mute, attenuation and

phase reversal.

The WM8718 is an ideal device to interface to AC-3

,

DTS

, and MPEG audio decoders for surround sound

applications, or for use in DVD players including those

supporting DVD-A.

FEATURES

•

24 bit Stereo DAC

•

Fully Differential Voltage Outputs

•

Audio Performance

-

111dB SNR (‘A’ weighted @ 48kHz) DAC

-

-100dB THD

•

DAC Sampling Frequency: 8kHz - 192kHz

•

3 Wire Serial Control Interface

•

Programmable Audio Data Interface Modes

-

I

2S, 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

•

Independent Zero Flag Outputs

•

3.0V - 5.5V Supply Operation

•

20-pin SSOP Package

APPLICATIONS

•

CD, DVD, and DVD-Audio Players

•

Home theatre systems

•

Professional mixing desks

BLOCK DIAGRAM

AUDIO

INTERFACE

ATT/

MUTE

CONTROL

INTERFACE

BCKIN

VOUTLN

VOUTRN

SIGMA

DELTA

MODULATOR

LRCIN

DIN

ATT/

MUTE

SIGMA

DELTA

MODULATOR

DIGITAL

FILTERS

VMID

DAC

VOUTRP

VOUTLP

ZEROFL

ZEROFR

W

WM8718

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WM8718SEDS/R 데이터시트(PDF) 1 Page - Wolfson Microelectronics plc

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