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WM8522 Datasheet(PDF) 1 Page - Wolfson Microelectronics plc |
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WM8522 Datasheet(HTML) 1 Page - Wolfson Microelectronics plc |
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1 / 39 page  w WM8522 24-bit, 192kHz 6-Channel DAC with 1.7Vrms Line Driver 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 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 I 2S, 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. 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 − I 2S, 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 BLOCK DIAGRAM |
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