Note: If you meant a different component (e.g., CX20993, CX31983, or a generic Chinese USB DAC dongle), the approach remains similar — verify pinout and power sequencing.

4. Datasheet Correction Template

If you are maintaining an internal datasheet for CX31993, append this errata:

  1. Press Win + R, type powercfg.cpl, press Enter.
  2. Click Change plan settings next to your active plan.
  3. Click Change advanced power settings.
  4. Scroll to USB settingsUSB selective suspend setting.
  5. Set both On battery and Plugged in to Disabled.
  6. Click ApplyOK.
  7. Reboot and reconnect the CX31993 dongle.

Conclusion

While there is no single "official" public PDF from Conexant/Synaptics, community-maintained files and "leaked" versions are sometimes hosted on third-party repositories. You can check:

Common Issues with the Cx31993 Datasheet

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