Cx31993 Datasheet Fix Hot! Info

: Using 2.2 µF on the VOUT_REF pin (pin 11). Fix : Use 1 µF ±10% X7R – larger values cause pop noise on plug-in due to slow common mode settling.

If you applied these datasheet fixes and still face issues, check the following hardware bugs: The DAC is recognized by the computer but outputs no sound

), which is more efficient than Class AB but cleaner than typical Class D. Resolution: Supports up to 32-bit / 384kHz Typically rated at , providing a "black background" with minimal floor noise. 3. Common "Fixes" & Troubleshooting Cx31993 Datasheet Fix

I can provide target schematic snippets or specific register initialization code based on your setup. Share public link

Check the negative voltage rail generated by the chip. Measure the voltage at the charge pump output pin. If it is not reading approximately -1.8V to -2.5V, your flying capacitor is shorted, oriented incorrectly (if using polarized caps, though ceramic is recommended), or damaged. There is a constant high-pitched whine in the background : Using 2

Crosstalk occurs when the return current of one audio channel interferes with the other.

Ensure the headphone ground pin routes directly back to the chip pin, rather than dumping into a shared ground plane near the USB connector. Resolution: Supports up to 32-bit / 384kHz Typically

Example corrections likely needed (concise)

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