Cx31993: Datasheet Fix !link!

| Original Datasheet Claim | Corrected Information (Fix v2.1) | Impact | |--------------------------|----------------------------------|---------| | I²C slave address 0x22 | (7-bit) | Without this, register writes silently fail. | | Pin 11 = “RESERVED” | GPIO1 (active-low headphone detect) | Enables auto switch between speaker and headphone. | | Max HP output = 1.0Vrms | 1.24Vrms (into 32Ω) | Explains why some dongles measure higher THD at “max volume.” | | Missing register 0x0F | DAC de-emphasis control | Critical for 44.1 kHz linearity. |

Users often complain that the microphone input suffers from a constant high-pitched hiss, or that inline play/pause buttons register randomly. Cx31993 Datasheet Fix

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. | Original Datasheet Claim | Corrected Information (Fix v2

Cross-check the information with other sources, such as technical forums or manufacturer websites. | Users often complain that the microphone input

The exposed thermal pad (EPAD) underneath the chip must be soldered cleanly to the PCB. Intersperse a minimum of four 0.2mm thermal vias directly within the center pad.

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.