WM8714ED/R データシートの表示（PDF） - Wolfson Microelectronics plc

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WM8714ED/R

24-bit, 96kHz Stereo DAC

Wolfson Microelectronics plc 

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WM8714

24-bit, 96kHz Stereo DAC

DESCRIPTION

The WM8714 is a high performance stereo DAC designed

for audio applications such as DVD, home theatre systems,

and digital TV. The WM8714 supports data input word

lengths from 16 to 24-bits and sampling rates up to 96kHz.

The WM8714 consists of a serial interface port, digital

interpolation filters, multi-bit sigma delta modulators and

stereo DAC in a 14-pin SOIC package.

The WM8714 has a hardware control interface for selection

of audio data interface format, mute and de-emphasis. The

WM8714 supports I2S, and right Justified audio data

interfaces.

The WM8714 is an ideal device to interface to AC-3,

DTS, and MPEG audio decoders for surround sound

applications, or for use in DVD players.

FEATURES

• Stereo DAC

• Audio Performance

- 95dB SNR (‘A’ weighted @ 48kHz) DAC

- -90dB THD

• DAC Sampling Frequency: 8kHz – 96kHz

• Pin Selectable Audio Data Interface Format

- I2S, Right Justified or DSP

• 3 - 5V Supply Operation

• 14-pin SOIC Package

• Pin Compatible with WM8725

APPLICATIONS

• DVD Players

• Digital TV

• Digital Set Top Boxes

BLOCK DIAGRAM

FORMAT MUTE DEEMPH

CONTROL INTERFACE

W

WM8714

BCKIN

LRCIN

DIN

SERIAL

INTERFACE

MUTE

MUTE

DIGITAL FILTERS

SIGMA

DELTA

MODULATOR

SIGMA

DELTA

MODULATOR

RIGHT

DAC

LEFT

DAC

LOW

PASS

FILTER

VOUTR

LOW

PASS

FILTER

VOUTL

MCLK

VDD GND

CAP

WOLFSON MICROELECTRONICS plc

w : www.wolfsonmicro.com

Production Data, November 2004, Rev 4.0

Copyright 2004 Wolfson Microelectronics plc.

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