Frequently paired on-board with a dedicated MAX97220 amplifier chip to boost driving power for high-impedance loads. Why the CX31993 System Runs Hot
: Excessive heat can occur when the DAC draws more power than the internal thermal management can dissipate, especially on desktop PC ports that may lack strict current limiting. cx31993 datasheet fix hot
: If using the dongle on a PC, try a USB 2.0 port instead of USB 3.0/3.1. Some users find that the lower power delivery of USB 2.0 helps the chip run cooler. Some users find that the lower power delivery of USB 2
According to various technical summaries, the chip delivers top-tier performance for its size: 32-bit / 384kHz (PCM) Signal-to-Noise Ratio (SNR): >128dB Dynamic Range (DNR): >120dB Total Harmonic Distortion (THD+N): 0.0003% (-95dB) cx31993 datasheet fix hot
Budget designs may lack proper heat dissipation (heatsinks or thermal pads), causing the zinc alloy or plastic shells to become hot to the touch during extended use.