WM8768 데이터 시트보기 (PDF) - Cirrus Logic

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WM8768

24-bit, 192kHz 8-Channel DAC

Cirrus Logic 

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24-bit, 192kHz 8-Channel DAC

WM8768

DESCRIPTION

The WM8768 is a multi-channel audio DAC ideal for DVD

and surround sound processing applications for home hi-fi,

automotive and other audio visual equipment.

Four stereo 24-bit multi-bit sigma delta DACs are used with

oversampling digital interpolation filters. Digital audio input

word lengths from 16-32 bits and sampling rates from 8kHz

to 192kHz are supported. Each DAC channel has

independent digital volume and mute control.

The audio data interface supports I2S, left justified, right

justified and DSP digital audio formats.

The device is controlled either via a 3 wire serial interface or

directly using the hardware interface. These interfaces

provide access to features including channel selection,

volume controls, mutes, de-emphasis and power

management facilities. The device is available in a 28-lead

SSOP.

BLOCK DIAGRAM

FEATURES

• 8-Channel DAC with PCM.

• Audio Performance

− 103dB SNR (‘A’ weighted @ 48kHz) DAC

• DAC Sampling Frequency: 8kHz – 192kHz

• 3-Wire SPI Serial or Hardware Control Interface

• Programmable Audio Data Interface Modes

− I2S, Left, Right Justified or DSP

− 16/20/24/32 bit Word Lengths

• Four Independent stereo DAC outputs with independent

digital volume controls

• Master or Slave Audio Data Interface

• 2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supply

Operation

• 28 lead SSOP Package

APPLICATIONS

• DVD Players

• Surround Sound AV Processors and Hi-Fi systems

• Automotive Audio

WOLFSON MICROELECTRONICS plc

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Production Data, July 2010, Rev 4.3

Copyright ©2010 Wolfson Microelectronics plc

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