120 dB, 24-Bit, 192 kHz Stereo D/A Converter with DSD Support

The CS4398 is a low power, 120 dB stereo digital/analog converter (DAC) featuring digital de-emphasis, half dB step-size volume control, ATAPI channel mixing, and selectable fast and slow roll off digital interpolation filters. This stage is followed by an over sampled multi-bit Delta Sigma modulator, which includes mismatch shaping technology that eliminates distortion due to capacitor mismatch, and a multi-element switched capacitor stage and low-pass filter with differential analog outputs. A Direct Stream Digital® (DSD) processor allows for volume control and 50 kHz on-chip filtering without an intermediate decimation stage, plus an optional path for direct DSD conversion by directly using the multi-element switched capacitor array. The IC accepts DSD audio and 32 kHz to 200 kHz data sample rates, has selectable digital filters and delivers excellent sound quality.

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  • Low-latency digital filter
  • Direct Stream Digital mode (SACD)
  • Low-clock-jitter sensitivity
  • Differential analog outputs
  • Control output for external muting

Parametric Specifications

Channel(s) Out 2
Resolution (bits) 24
Dynamic Range (dB) 120
THD+N (dB) -107
Sample Rate (kHz) 30-216
Analog Power Supply (V) 5
Digital Power Supply (V) 3.3-5
Logic Power Supply (V) 1.8-5.0
Operational Power Consumption (mW)
Output Level (Vrms) 2.3
Package 28 TSSOP;
28 QFN


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


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