The D/A converter is Delta Sigma (CS4392)
The CS4392 is a complete stereo digital-to-analog (D/A) system including digital interpolation, fifth-order Delta-Sigma D/A conversion, digital de-emphasis, volume control, channel mixing, and analog filtering. The advantages of this architecture include ideal differential linearity; no distortion mechanisms due to resistor matching errors; no linearity drift over time and temperature; and a high tolerance to clock jitter.
The CS4392 accepts PCM (pulse code modulation) data at sample rates from 4 kHz to 192 kHz and Direct Stream Digital (DSD) audio data, has selectable digital filters, and consumes very little power. These features are ideal for DVD, SACD (Super Audio CD) players, audio/video receivers, CD, and professional audio systems. The CS4392 is pin- and register-compatible with the CS4391A, making easy performance upgrades possible.
Complete stereo D/A converter system: interpolation, D/A, output analog filtering
114 dB dynamic range
-100 dB THD+N
Up to 192 kHz sample rates
DSD mode (SACD)
Low clock-jitter sensitivity
Selectable digital filters
Fast and slow roll-off
Volume control with soft ramp
1 dB step size
Zero crossing click-free transitions
ATAPI mixing functions
Direct interface with 5 V to 1.8 V logic
Single 5 V power supply
Pin-compatible with the CS4391A
Package: 20-pin TSSOP
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