WM8522 Datasheet | Wolfson Microelectronics

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 8k Hz to 192k Hz 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 costsensitive 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. 24-bit, 192k Hz 6-Channel DAC with 1.7Vrms Line Driver FEATURES - - 6-Channel DAC with 1.7Vrms line driver from 5V analogue supply Audio performance - - - - SNR 102d B (‘A’ weighted @ 48k Hz) - THD -85d B (48k Hz) DAC sampling frequency: 8k Hz - 192k Hz 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 patible with WM8766 28-lead SSOP package - - - - - APPLICATIONS - - - DVD Players Surround Sound AV Processors and Hi-Fi systems Automotive Audio BLOCK DIAGRAM WOLFSON MICROELECTRONICS plc To receive regular email updates, sign up at http://.wolfsonmicro./enews/ Pre Production, May 2006, 3.1 Copyright 2006 Wolfson Microelectronics plc .. WM8522 TABLE OF CONTENTS Pre-Production DESCRIPTION...