Cx31993 Datasheet ((link)) -

: Approximately 65mW (usually at 32 ohms), capable of driving most standard IEMs and efficient headphones. DSD Support : Compatible with DSD64/128 (often via PCM). Functionality & Compatibility

The datasheet highlights a sophisticated internal architecture designed to minimize interference and maximize audio fidelity. Digital-to-Analog Conversion cx31993 datasheet

Since it is not public: