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, 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.

FEATURES
• 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-pin SSOP Package

APPLICATIONS
• Surround Sound AV Processors and Hi-Fi systems
• DVD-RW