DESCRIPTION
The WM8777 is a high performance, multi-channel audio codec. The WM8777 is ideal for surround sound processing applications for home hi-fi, automotive and other audio visual equipment. A S/PDIF transceiver with 4-channel input mux is included. Analogue domain bass management processing, and front channel analogue tone control facilities are provided.

FEATURES
• AV receiver on-a-chip with 8 DACs and 2 ADCs
• Integrated S/PDIF/IEC60958/AES3 transceiver
• Analogue Bass Management and stereo mixdown support
• Analogue tone controls for front 3 channels
• Master volume control on each DAC channel with gain range of +20dB to -100dB in 1dB steps
• Audio Performance
    − 108dB SNR (‘A’ weighted @ 48kHz) DAC
    − 102dB SNR (‘A’ weighted @ 48kHz) ADC
    − 110dB SNR (‘A’ weighted) Analogue volume control
• DAC Sampling Frequency: 8KHz – 192kHz
• ADC Sampling Frequency: 8KHz – 192kHz
• 3-Wire SPI or 2-wire MPU Serial Control Interface with readback.
• Master or Slave Clocking Mode
• Programmable Format Audio Data Interface Modes
• Four Independent stereo DAC outputs with independent digital volume controls
• Integrated Stereo headphone amplifier with source select
• 5.1 channel analogue input prior to the tone controls, bass management and stereo mixdown functions.
• Six stereo input ADC mux with analogue gain adjust from +24dB to –21dB in 0.5dB steps
• 5V Analogue, 2.7V to 3.6V Digital supply Operation

APPLICATIONS
• Surround Sound AV Processors and Hi-Fi systems