Cx31993 Datasheet Fix | 2024-2026 |

The cleanest public reference is the , 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).

Are you designing a custom , or debugging an existing USB dongle ? Cx31993 Datasheet Fix

This article bridges the gap. We will explain what the CX31993 datasheet actually contains, why it won’t solve your problem, and—most importantly—provide the for the real-world issues driving you to search for that elusive document. The cleanest public reference is the , but

To help tailor this information to your specific project, tell me: This article bridges the gap

Ensure you have two separate 5.1kΩ resistors (one on CC1 to GND, one on CC2 to GND). Never tie CC1 and CC2 together to a single resistor.

Fix 3: Thermal Management and Ground Plane Stitching (Fixes Overheating)

The Cx31993 utilizes active DC offset cancellation. If the headphone feedback lines ( HPL_FB / HPR_FB ) are left floating, or if there is trace capacitance dragging down the output during startup, the internal amplifiers saturate.