is a popular, budget-friendly USB-C DAC chip found in many "noname" and branded dongles like the Audiocular CX Pro
…passively dampens the electrical treble resonance. The chip’s 2Vrms output drives them cleanly, and the headphones’ own impedance profile smooths the hot region without external parts. cx31993 datasheet fix hot
This paper establishes that the actual thermal resistance in standard application environments is approximately 95°C/W. The proposed datasheet fix—updating thermal tables and including realistic power derating guidelines—will mitigate the "hot" issues, ensuring the CX31993 operates within safe thermal limits and maintains the audio fidelity for which it was designed. Manufacturers are urged to release Technical Bulletin TB-CX31993-THRM immediately to prevent further field failures. is a popular, budget-friendly USB-C DAC chip found