Cx31993 Datasheet Fix Portable

The Conexant CX31993 has become a legendary chip in the budget audiophile community, powering popular USB-C DAC dongles like the Abigail and JCALLY JM6. However, finding an official, high-quality CX31993 datasheet is notoriously difficult, as the documentation is often restricted to original equipment manufacturers (OEMs).

Filtering Ultrasonic Noise: Users have reported significant electrical noise above 200kHz (Class G switching/Class D artifacts). Adding a simple Low-Pass Filter (LPF) to the output can help clean the signal for sensitive gear like oscilloscopes or high-end IEMs. Cx31993 Datasheet Fix

Verified Source for Correct Datasheet

The cleanest public reference is the Conexant (now Synaptics) CX31993 Product Brief v2.1, but it omits many details above. For actual design fixes, refer to the JCALLY JM06 schematic (leaked, but verified) or the USB-IF test report for VID 0x262A (Conexant’s USB audio class descriptor). The Conexant CX31993 has become a legendary chip

The Complete Guide to the CX31993 Datasheet Fix: Solving Driver Gaps, Crackling Audio, and Recognition Errors

If you’ve landed on this page searching for a “Cx31993 Datasheet Fix,” you are likely one of two types of people: an audio hardware engineer trying to understand the pinout of the Conexant CX31993 chip, or—more commonly—a frustrated user whose USB-C dongle DAC (Digital-to-Analog Converter) isn’t working properly. Adding a simple Low-Pass Filter (LPF) to the

The real issues are almost always power negotiation, USB selective suspend, conflicting audio enhancements, or poor shielding—all of which are external to the silicon itself.

Finding an official datasheet is notoriously difficult because Conexant (now part of Synaptics) is no longer as active in the consumer component market, leading to conflicting or incomplete technical specs online. Audio Science Review (ASR) Forum CX31993 Technical Specifications (Consensus)

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