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Wolfson Microelectronics - 192kHz 6-Channel DAC

Numéro de référence WM8522
Description 192kHz 6-Channel DAC
Fabricant Wolfson Microelectronics 
Logo Wolfson Microelectronics 





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WM8522 fiche technique
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WM8522
24-bit, 192kHz 6-Channel DAC with 1.7Vrms Line Driver
DESCRIPTION
The WM8522 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, and provides 1.7Vrms line drive capability
from a 5V supply. This makes the device ideal for cost-
sensitive consumer applications requiring high line drive
audio outputs
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-lead
SSOP.
BLOCK DIAGRAM
FEATURES
6-Channel DAC with 1.7Vrms line driver from 5V analogue
supply
Audio performance
SNR 102dB (‘A’ weighted @ 48kHz)
THD -85dB (48kHz)
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
4.5V to 5.5V analogue, 2.7V to 3.6V digital supply
operation
Pin compatible with WM8766
28-lead SSOP package
APPLICATIONS
DVD Players
Surround Sound AV Processors and Hi-Fi systems
Automotive Audio
WOLFSON MICROELECTRONICS plc
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/
Pre Production, May 2006, 3.1
Copyright 2006 Wolfson Microelectronics plc

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