Cx31993 Datasheet Fix Better Jun 2026

This reduces ultrasonic noise from the Σ-Δ modulator, dropping THD+N to <0.003% (20Hz–20kHz).

The CX31993 (also known as ) is a high-performance, low-power USB-C DAC/Amp chip widely used in budget audiophile "dongles." It is highly regarded for its 32-bit / 384kHz support and impressive signal-to-noise ratio (SNR) of Concept Kart Key Specifications cx31993 datasheet fix better

Because the datasheet doesn't specify analog ground separation, cheap dongles create hiss when the laptop is charging. This reduces ultrasonic noise from the Σ-Δ modulator,

have noted high-frequency noise (>200kHz) in some implementations. Since it is a Class G amp, adding a low-pass filter to the output can help clean up ultrasonic artifacts that may interfere with sensitive equipment like oscilloscopes. External Amplification dropping THD+N to &lt