Cx31993 Datasheet Fix -

A dual-channel USB audio codec designed for low power consumption and high integration in mobile devices. Compatibility:

What specific (Windows, Android, iOS) are you connecting to?

Add a small passive low-pass filter (typically a 10Ω to 22Ω resistor in series, followed by a 100pF capacitor to ground) on HPL and HPR to suppress residual delta-sigma modulator noise without altering the audible frequency spectrum. 4. Firmware and Software Configuration Note

Are you , or are you trying to repair an existing commercial dongle ? Cx31993 Datasheet Fix

I can provide targeted troubleshooting steps or component values for your specific application. Share public link

Despite the lack of a public PDF, community testing and manufacturer listings provide a clear picture of the chip's capabilities: Up to 32-bit / 384kHz PCM.

If you are programming the CX31993 via an external microcontroller or modifying its internal EEPROM, the default datasheet register map will cause initialization loops. 1. Clock Configuration Register (0x02) A dual-channel USB audio codec designed for low

What your specific board or dongle is showing (e.g., completely dead, noise, specific OS errors).

"Correcting the CX31993 Datasheet" For a File Name: CX31993_Datasheet_Fix.pdf Key Corrections

: Users with sensitive In-Ear Monitors (IEMs) heard a faint static noise during quiet passages. Share public link Despite the lack of a

Are you or reprogramming an existing dongle ?

Isolate the charge pump flying capacitors ( CPVSS to CPVDD ). Ensure their traces do not cross or run parallel to HPOUT_L or HPOUT_R .

MIC_IN , C_DET (Jack/Impedance detection), and auxiliary GPIOs.

The standard datasheet schematic swaps several critical pins, leading to immediate hardware failure or unrecognised USB devices if followed blindly. 1. USB Data Lines (D+ / D-)