Cx31993 Datasheet Fix Hot [updated] -
Clarify the $R_\theta JC$ value to encourage the use of thermal vias. The datasheet should explicitly state that the device requires a thermal pad connected to the ground plane via an array of thermal vias.
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.
However, users frequently report structural vulnerabilities, particularly an that can cause the unit to stutter, disconnect, or fail prematurely. cx31993 datasheet fix hot
Below is a guide addressing the technical specifications and common "hot" fixes for this chip.
Since an official datasheet is hard to find, technical communities rely on these verified parameters: 32-bit / 384kHz SNR (Signal-to-Noise Ratio): >128dB DNR (Dynamic Range): >120dB THD+N: 0.0003% (-95dB) Output Power: 65mW (dual channel) Amplifier Class: Class G Why it Gets "Hot" (Common Causes) Clarify the $R_\theta JC$ value to encourage the
The device was powered on and subjected to a sustained computational load representing 80% maximum throughput. Ambient temperature was maintained at 25°C. Temperature was monitored until thermal equilibrium was achieved.
: Avoid keeping the DAC in your pocket while in use. Passive cooling is most effective when the unit has enough "flow-by" air movement to dissipate heat from the enclosure. 2. Software & App Optimizations Ambient temperature was maintained at 25°C
Typically 30mW to 65mW per channel into 32 ohms. Interface: USB 2.0 High Speed (Type-C native). Operating Voltage: 3.3V to 5.0V input. Why It Runs Hot
On Windows, if the device isn't recognized or runs hot while failing to play audio, manually uninstall the generic USB driver in Device Manager and let Windows reinstall it fresh.
The DAC chip is a common budget-friendly component often paired with the MAX97220 amplifier in portable USB-C dongles. While a formal, public "datasheet" from the manufacturer (Conexant/Synaptics) is notoriously difficult to find, community documentation and real-world testing highlight a recurring issue where these devices run excessively hot and produce static. Why it gets "Hot"
