DESCRIPTION

The WM8775 is a high performance, stereo audio ADC with a 4 channel input mixer. The WM8775 is ideal for digitising multiple analogue sources for surround sound processing applications for home hi-fi, automotive and other audio visual equipment.

FEATURES

•Audio Performance

− 102dB SNR (‘A’ weighted @ 48kHz)

−-90dB THD

• ADC Sampling Frequency: 32kHz – 96kHz

• Four stereo ADC inputs with analogue gain adjust from +24dB to –21dB in 0.5dB steps

• Digital gain adjust from -21.5dB to -103dB.

• Programmable Automatic Level Control (ALC) or Limiter on ADC input

• 3-Wire SPI Compatible or 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

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

APPLICATIONS

• Surround Sound AV Processors and Hi-Fi systems

•Automotive Audio