Since the official PDF is restricted, the hardware community has mapped the CX31993 in USB-C dongles (like the Ugreen 50744 and CableCreation). The chip is usually a 3mm x 3mm QFN.
In the open-source community, getting the most out of this chip sometimes requires custom device tree overlays or specific kernel modules to unlock features like high-gain microphone modes or specific DSP profiles. cx31993 datasheet
The technical data presented here is aggregated from public test measurements (AudioScienceReview, L7Audiolab), reverse engineering efforts, and application notes. For mass production, sign an NDA with Synaptics to obtain the full, official CX31993 datasheet. Since the official PDF is restricted, the hardware
Digital-to-Analog Converter (DAC) chip—gained "dark horse" status because it was powerful, cheap, and surprisingly difficult to find technical documentation for. 1. The "Hidden Gem" Discovery The CX31993 chip first rose to fame through the The technical data presented here is aggregated from