DESCRIPTION
The WM8742 is a very high performance stereo DAC designed for audio applications such as professional recording systems, A/V receivers and high specification CD, DVD and home theatre systems. The device supports PCM data input word lengths from 16 to 32-bits and sampling rates up to 192kHz. The WM8742 also supports DSD bit-stream data format, in both direct DSD and PCM-converted DSD modes.

FEATURES
• Advanced Ultra High Performance Multi-bit Sigma-Delta Architecture
    - 126dB SNR (‘A’-weighted mono @ 48kHz)
    - 123dB SNR (‘A’-weighted stereo @ 48kHz)
    - 121dB SNR (non-weighted stereo @ 48kHz)
    - -100dB THD @ 48kHz
    - Differential analogue voltage outputs
    - High tolerance to clock jitter
• PCM Mode
    - Sampling frequency: 32kHz to 192kHz
    - Input data word length support: 16 to 32-bit
    - Supports all standard audio interface formats
    - Selectable advanced digital filter responses
        - Includes linear/minimum phase and range of tailored characteristics
        - Enables low pre-ringing, minimal latency
    - Optional interface to industry standard external filters
    - Digital volume control in 0.125dB steps with soft ramp and soft mute
    - Anti-clipping mode to prevent distortion even with input signals recorded up to 0dB
    - Selectable de-emphasis support
    - Zero Flag output
• DSD Mode
    - DSD bit-stream support for SACD applications
    - Support for normal or phase modulated bit-streams
    - Direct or PCM converted DSD paths (DSD Plus)
    - DSD mute
• Hardware or software control modes:
    - 2 and 3 wire serial control interface support
• Pin compatible with WM8740 and WM8741
• 4.5V to 5.5V analogue, 3.15V to 3.6V digital supply operation
• 28-lead SSOP Package

APPLICATIONS
• Professional audio systems
• CD, DVD, SACD audio
• Home theatre systems
• A/V receivers