DESCRIPTION

The WM8772 is a multi-channel audio codec ideal for DVD and surround sound processing applications for home hi-fi, automotive and other audio visual equipment.

A stereo 24-bit multi-bit sigma delta ADC is used. Digital audio output word lengths from 16-32 bits and sampling rates from 32kHz to 96kHz are supported. The 32-lead version allows separate ADC and DAC samples rates.

FEATURES

? Audio Performance

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

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

? DAC Sampling Frequency: 8kHz – 192kHz

? ADC Sampling Frequency: 32kHz – 96kHz

? ADC and DAC can run at different sample rates (32 pin TQFP version only)

? 3-Wire SPI Serial or Hardware Control Interface

? Programmable Audio Data Interface Modes

? I2S, 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

? 2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supply Operation

? 28 pin SSOP or 32 pin TQFP Package

APPLICATIONS

? DVD Players

? Surround Sound AV Processors and Hi-Fi systems

? Automotive Audio