Advanced D/A Converter with PCM/DSD Mode Support

The WM8742 is a stereo digital/analog converter (DAC) that provides fine resolution volume, soft mute control, digital de-emphasis and a range of advanced digital filter responses, followed by a digital interpolation filter, multi-bit Delta Sigma modulator and stereo DAC. The device optimizes the DAC linearity and provides maximum insensitivity to clock jitter. The digital filters include several selectable roll-off and performance characteristics.This flexibility provides a range of benefits, such as significantly reduced pre-ringing and minimal group delay. The WM8742 supports PCM data input from 16 to 32-bits and sampling rates up to 192 kHz, as well as DSD bit-stream data format, in both direct DSD and PCM-converted DSD modes.

Features

  • Differential analog voltage outputs
  • High tolerance to clock jitter
  • PCM Mode
  • DSD mode
  • Hardware or software control modes:
    • 2 and 3 wire serial control interface support
  • 28-pin SSOP Package

Parametric Specifications

Channel(s) Out 2
Resolution (bits) 24
Dynamic Range (dB) 126
THD+N (dB) -100
Sample Rate (kHz) 192
Analog Power Supply (V) 4.5-5.5
Supply Current (µA) 3-3.6
Output Level (Vrms) 2
Package 28 SSOP

MasterHIFI

For more information about Cirrus Logic's Hi-Fi product line, visit the Hi-Fi Audio page.

Technical Documents

WM8742 Product Datasheet

Feb 1, 2013, v4.3 : 879 Kb

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