Cirrus Logic Inc. WM8775SEDS/V

Description
The WM8775 is a high-performance, stereo audio ADC with a 4-channel input mixer. It is ideal for digitizing multiple analog sources for surround sound processing applications in home hi-fi, automotive, and other audio-visual equipment.
The WM8775 uses a stereo 24-bit multi-bit sigma-delta ADC with a four stereo-channel input selector. Each channel has programmable gain control. Digital audio output word lengths from 16-32 bits and sampling rates from 32kHz to 96kHz are supported.
The audio data interface supports IS, left-justified, right-justified, and DSP digital audio formats. The device is controlled via a 2 or 3-wire serial interface, which provides access to all features, including channel selection, volume controls, mutes, de-emphasis, and power management facilities.
The WM8775 is available in a 28-lead SSOP package and is software compatible with the WM8776.

Features
Audio Performance
102dB SNR ('A' weighted @ 48kHz)
-90dB THD
ADC Sampling Frequency: 32kHz-96kHz
Four stereo ADC inputs with analog 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 - IS, Left, Right Justified, or DSP
16/20/24/32 bit Word Lengths
2.7V to 5.5V Analog, 2.7V to 3.6V Digital supply Operation

Applications
Surround Sound AV Processors and Hi-Fi systems
Automotive Audio