WM8591 View Datasheet(PDF) - Wolfson Microelectronics plc

Part Name

Description

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WM8591

24-bit, 192kHz Stereo CODEC

Wolfson Microelectronics plc 

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24-bit, 192kHz Stereo CODEC

WM8591

DESCRIPTION

FEATURES

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, DVD-

RW 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 32kHz to 96kHz 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

32kHz to 192kHz.

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.

• Audio Performance

− 110dB SNR (‘A’ weighted @ 48kHz) DAC

− 102dB SNR (‘A’ weighted @ 48kHz) ADC

• DAC Sampling Frequency: 32kHz – 192kHz

• ADC Sampling Frequency: 32kHz – 96kHz

• Stereo ADC input analogue gain adjust from +24dB to –21dB in

0.5dB steps

• ADC digital gain from -21.5dB to -103dB in 0.5dB 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

BLOCK DIAGRAM

• Surround Sound AV Processors and Hi-Fi systems

• DVD-RW

WOLFSON MICROELECTRONICS plc

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Production Data, December 2005, Rev 4.0

Copyright 2005 Wolfson Microelectronics plc

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