WM8591 Datasheet | Wolfson Microelectronics

DESCRIPTION The WM8591 is a high performance, stereo audio CODEC with single-ended inputs and differential outputs. It is ideal for surround sound processing applications for home hi-fi, DVDRW and other audio visual equipment. The stereo 24-bit multi-bit sigma delta ADC has programmable gain with limiting control. Digital audio output word lengths from 16-32 bits and sampling rates from 32k Hz to 96k Hz are supported. A stereo multi-bit sigma delta DAC is used with digital audio input word lengths from 16-32 bits and sampling rates from 32k Hz to 192k Hz. The WM8591 supports fully independent sample rates for the ADC and DAC. The audio data interface supports I2S, left justified, right justified and DSP formats. The device is controlled in software via a 2-wire serial interface which provides access to all features including volume controls, mutes, and de-emphasis facilities. The device is available in a 28-lead SSOP package. FEATURES - Audio Performance - 110d B SNR (‘A’ weighted @ 48k Hz) DAC - 102d B SNR (‘A’ weighted @ 48k Hz) ADC DAC Sampling Frequency: 32k Hz - 192k Hz ADC Sampling Frequency: 32k Hz - 96k Hz Stereo ADC input analogue gain adjust from +24d B to - 21d B in 0.5d B steps ADC digital gain from -21.5d B to -103d B in 0.5d B steps Programmable Limiter on ADC input. Stereo DAC with differential analogue line outputs. 2-wire Serial Control Interface Master or Slave Clocking Mode Programmable Audio Data Interface Modes - I2S, Left, Right Justified or DSP - 16/20/24/32 bit Word Lengths 4.5V to 5.5V Analogue, 2.7V to 3.6V Digital supply Operation 28-lead SSOP Package - - - - - - - - - - - .. APPLICATIONS - - Surround Sound AV Processors and Hi-Fi systems DVD-RW BLOCK DIAGRAM WOLFSON MICROELECTRONICS plc To receive regular email updates, sign up at http://.wolfsonmicro./enews/ Production Data, December 2005, Rev 4.0 Copyright 2005 Wolfson Microelectronics plc WM8591 TABLE OF CONTENTS Production Data DESCRIPTION...