Pixel Protocol Overview: UCS2903

This pixel protocol was designed by Lianxinke in China. UCS2903 is an improved design of its previous version, UCS1904, offering a constant current design, allowing for a more stable lighting system. The control circuit comes in a SOP8 package, allowing for more flexibility with LED choice.

PixLite Support

Are you looking for UCS2903 pixel drivers that work with Art-Net or sACN? All PixLite Mk1, Mk2, and Mk3 products support UCS2903 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.

Note: When configuring your PixLite device, select 'UCS1903' as your Pixel Type, and set Speed to Fast. This is the equivalent protocol that will allow you to use UCS2903 pixels.

Technical Specifications

Clock Type Data-Only
Color Resolution 8 bits
Physical Package SOP8
RGB Yes
RGBW See UCS2904
Output Pixel Voltage 5 – 24V
PWM Rate 1600Hz
Suitable Camera Up to 54fps, see Refresh Rate and PWM Rate
Data Transfer Rate 800kbps
Redundant Data Line No

UCS2903 Advantages

UCS2903 Disadvantages

  • Data-only restricts refresh rates to be limited by the speed of the protocol, which will generally be slow
  • Only 8 bits of data for each color makes dimming curves less smooth
  • No redundancy in data
Categories: Pixel LEDs