DESCRIPTION

The WM8581 is a multi-channel audio CODEC with S/PDIF transceiver. The WM8581 is ideal for DVD and surround sound processing applications for home hi-fi, automotive and other audiovisual equipment.

Integrated into the device is a stereo 24-bit multi-bit sigma delta ADC with support for digital audio output word lengths from 16-bit to 32-bit, and sampling rates from 8kHz to 192kHz.

FEATURES

• Mutli-channel CODEC with 4 Stereo DACs and 1 Stereo ADC

• Integrated S/PDIF / IEC-60958-3 transceiver

• Audio Performance

− 103dB SNR (‘A’ weighted @ 48kHz) DAC

− -90dB THD (48kHz) DAC

− 100dB SNR (‘A’ weighted @ 48kHz) ADC

− -90dB THD (48kHz) ADC

• DAC Sampling Frequency: 8kHz – 192kHz

• ADC Sampling Frequency: 8kHz – 192kHz

• Independent ADC and DAC Sample Rates

• 2 and 3-Wire Serial Control Interface with readback, or Hardware Control Interface

• GPO pins allow visibility of user selected status flags

• Programmable Audio Data Interface Modes

− I2S, Left, Right Justified or DSP

− 16/20/24/32 bit Word Lengths

• Four independent stereo DAC outputs with independent digital volume controls

• Two Independent Master or Slave Audio Data Interfaces

• Flexible Digital Interface Routing with Clock Selection Control

• 2.7V to 5.5V Analogue, 2.7V to 3.6V Digital Supply Operation

• 48-lead TQFP Package

APPLICATIONS

• Digital TV

• DVD Players and Receivers

• Surround Sound AV Processors and Hi-Fi systems

• Automotive Audio