192 kHz D/A Converter with Internal Filter

The WM8740 is a stereo digital/analog converter (DAC) that supports a SPI-compatible serial control interface to support on-chip mute, attenuation and phase reversal, as well as a hardware controllable interface. This device accepts data input from 16 to 24-bits and sampling rates up to 192 kHz. The WM8716 also includes a digitally controllable mute and attenuator function on each channel. An internal digital filter has two selectable roll-off characteristics. A sharp or slow roll-off can be selected dependent on application requirements, or it can be bypassed and an external digital filter used instead.

Features

  • Selectable digital low pass filter
  • Optional interface to industry standard external filters
  • Hardware or three wire SPI control
  • Fully differential voltage outputs

Parametric Specifications

Channel(s) Out 2
Resolution (bits) 24
Dynamic Range (dB) 120
THD+N (dB) -104
Sample Rate (kHz) 192
Analog Power Supply (V) 3.5-5
Supply Current (µA) 3-5.5
Output Level (Vrms) 2
Package 28 SSOP

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

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