WM8766 Datasheet, PDF (1/32 Pages) Wolfson Microelectronics plc – 24 BIT 192KHZ 6 CHANNEL DAC

WM8766
24-bit, 192kHz 6-Channel DAC
DESCRIPTION
The WM8766 is a multi-channel audio DAC ideal for DVD
and surround sound processing applications for home hi-fi,
automotive and other audio visual equipment.
Three 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 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-pin
SSOP.
BLOCK DIAGRAM
FEATURES
• 6-Channel DAC
• 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
• Three 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 pin SSOP Package
APPLICATIONS
• DVD Players
• Surround Sound AV Processors and Hi-Fi systems
• Automotive Audio
WOLFSON MICROELECTRONICS plc
www.wolfsonmicro.com
Preliminary Technical Data, February 2004, 2.3
Copyright 2004 Wolfson Microelectronics plc