Check the signal path, including input and output connections, for any signs of damage, oxidation, or poor contact.
🔇 Even with extremely sensitive multi-driver IEMs, the background hiss on this chip is practically non-existent. It is exceptionally quiet. cx31993 datasheet fix hot
Review the PCB (Printed Circuit Board) layout. Ensure there are no obvious design flaws such as improper grounding, incorrect trace widths, or poor signal routing. Check the signal path, including input and output