New
Marketers
Power your team to create
videos at scale
Creators
Building social presence made easy
Agency
Scale video production with
ease
Marketers
Power your team to create
videos at scale
Creators
Building social presence made easy
Agency
Scale video production with
ease
The Conexant CX31993 (now often produced under the Synaptics umbrella following acquisitions) has become the gold standard for affordable, high-fidelity USB-C to 3.5mm audio adapters. While the public datasheet is restricted under NDA for manufacturers, extensive reverse engineering and community testing have allowed us to reconstruct a "functional datasheet" of its core specifications and electrical characteristics. 1. General Description The CX31993 is a low-power, high-performance audio codec with an integrated USB 2.0 full-speed controller. Unlike passive adapters, this active chip offloads all digital-to-analog conversion from the host smartphone or laptop, bypassing the device’s internal DAC and headphone jack.