The SK3626 is a semiconductor chip manufactured by RCA. It is a dual-channel 20-bit digital-to-analog converter (DAC) chip that can be used for a variety of audio applications such as digital audio processing and signal conversion, enabling high-fidelity audio playback. The SK3626 is designed to provide superior low-noise performance and low distortion; it operates with a maximum output voltage of 8V. It features built-in R-2R current-output circuits and three lines of user-selectable frequency response curves, allowing users to easily optimize audio playback. The chip includes a 24-bit shift register, allowing for smooth transition between low-level and high-level signals without any audible noise.