Pixel Protocol Overview: SK9822

This pixel protocol was designed by OPSCO in China. It is an improved design of its previous version, SK6822, using a clock line to achieve faster refresh rates and improved optics to achieve a higher PWM rate, which is why SK9822 is one of the most common protocols for pixel lighting displays. The control circuit and LEDs are integrated in a 5050 SMD package, which provides a small physical footprint for each pixel.

PixLite Support

Are you looking for SK9822 pixel drivers that work with Art-Net or sACN? All PixLite Mk2 and Mk3 products support SK9822 as an available Pixel IC type, so get in touch with us to find out how the lighting specialists at Advatek can support you in your pixel lighting project.

Technical Specifications

Clock Type Clocked
Color Resolution 8 bits
Physical Package SMD5050 with integrated LEDs
RGB Yes
RGBW See SK6818
Output Pixel Voltage 5V
PWM Rate 4600Hz
Suitable Camera Up to 154fps, see Refresh Rate and PWM Rate
Redundant Data Line No

Color Specifications

Color Wavelength
Red 620 – 630 nm
Green 515 – 525 nm
Blue 460 – 470 nm

SK9822 Advantages

  • Presence of a clock allows for faster refresh rates
  • Very high PWM rate allows for filming these pixels with cameras up to 154fps

SK9822 Disadvantages

  • Only 8 bits of data for each color makes dimming curves less smooth
  • Limited to 5V, causing short cable lengths
  • No redundancy in data
Categories: Pixel LEDs