Datasheet > WM8706_05

WM8706_05

更新时间： 2024-09-15 03:54:39

品牌	Logo	应用领域
欧胜 - WOLFSON		/
页数	文件大小	规格书
26页	290K
描述
24-bit, 192kHz Stereo DAC with Volume Control

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WM8706_05 数据手册

WM8706

24-bit, 192kHz Stereo DAC with Volume Control

DESCRIPTION

FEATURES

•

Stereo DAC

The WM8706 is a high performance stereo DAC designed

for audio applications such as DVD, home theatre systems,

and digital TV. The WM8706 supports data input word

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

The WM8706 can implement 2 channels at 192kHz for high-

end DVD-Audio. The WM8706 consists of a serial interface

port, digital interpolation filters, multi-bit sigma delta

modulators and stereo DAC in a small 28-lead SSOP

package. The WM8706 also includes a digitally controllable

mute and attenuate function on each channel.

Audio Performance

106dB SNR (‘A’ weighted @ 48kHz) DAC

-97dB THD

•

DAC Sampling Frequency: 8kHz – 192kHz

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

The WM8706 supports a variety of connection schemes for

audio DAC control. The 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. It is pin-compatible with the WM8716

provided the oscillator circuit on WM8716 is not required in

the application.

•

Independent Digital Volume Control on Each Channel with

127.5dB Range in 0.5dB Steps

•

3.0V – 5.5V Supply Operation

28-Lead SSOP Package

Exceeds Dolby Class A Performance Requirements

APPLICATIONS

The WM8706 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

MLIIS

MCDM1 MDDM0 MUTEB CSBIWO ZERO

MODE

WM8706

CONTROL INTERFACE

SIGMA

DELTA

MODULATOR

LOW

PASS

FILTER

RIGHT

DAC

MUTE/

ATTEN

VOUTR

VOUTL

BCKIN

LRCIN

DIN

SERIAL

INTERFACE

DIGITAL FILTERS

SIGMA

DELTA

MODULATOR

LOW

PASS

FILTER

LEFT

DAC

MUTE/

ATTEN

VMID

XTI

DGND

AVDD DVDD

VREFP VREFN AGND

Production Data, July 2005, Rev 4.1

WOLFSON MICROELECTRONICS plc

To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/

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