The Conexant CX31993 has quietly become one of the most popular unsung heroes of the mobile audio world. Found in countless $5 to $15 USB-C to 3.5mm dongle DACs (Digital-to-Analog Converters), this tiny chip promises high-resolution audio up to 32-bit/384kHz. It competes directly with the Realtek ALC5686 and the Apple C100.
The CX31993 is a widely adopted USB Type-C audio DAC/controller chip, known for its low power consumption, 32-bit/384kHz capability, and integrated headphone driver. It is found in many dongles and embedded designs. However, publicly available "datasheets" are often fragmented, incomplete, or contain errors. This paper outlines the critical gaps and proposes a corrected, useful specification. cx31993 datasheet fix better
ensures the system automatically switches to the DAC upon plugging it in. Static/Hiss Prevention: The Conexant CX31993 has quietly become one of
Create a living document (e.g., on Hackaday.io or GitHub) titled "CX31993 Errata & Complete Datasheet v1.0" containing: The CX31993 is a widely adopted USB Type-C