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