Cx31993 Datasheet Official
The CX31993 is essentially the "giant slayer" of the budget audio world. Whether you're looking at a DIY project like a custom audio expansion card or just want a $15 dongle that outperforms your laptop's stock soundcard, this chip delivers [1, 16].
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