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

• Multi-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
− -87dB 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