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-lead SSOP Package

APPLICATIONS

• Surround Sound AV Processors and Hi-Fi systems

• DVD-R W