WM8775 - Wolfson Microelectronics plc

WM8775 24 BIT 96 KHZ ADC WITH 4 CHANNEL I/P MULTIPLEXER

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. A stereo 24-bit multi-bit sigma delta ADC is used with a four stereo channel input selector. Each channel has prog.

Features

including channel selection, volume controls, mutes, de-emphasis and power management facilities. The device is available in a 28-lead SSOP package. The WM8775 is software compatible with the WM8776. BLOCK DIAGRAM 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 .