The CX31993 is a highly integrated, low-power audio codec from Conexant (now part of Synaptics). It is designed primarily for USB Type-C wired headsets and dongles, enabling high-resolution audio playback and voice capture through a single connector. It is widely recognized in the consumer electronics market for offering superior audio quality compared to basic passive USB-C analog dongles.
Engineers seeking the CX31993 datasheet are often designing a USB-C audio adapter. Here are the reference design rules: cx31993 datasheet
Since it is not public:
A minimal working circuit includes:
Block diagram from datasheet would show:
USB PHY → USB Audio Controller → DSP (optional equalizer, bass boost) → DAC → HP Amp → 3.5mm jack. The CX31993 is a highly integrated, low-power audio