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Lianxinke, based in China, created the pixel protocol called UCS2903. This version is an improvement upon its predecessor, UCS1904, due to its constant current design which ensures a more stable lighting system. Additionally, the control circuit comes in a SOP8 package, giving more options for LED selection.

Our LED Strip Studio products support UCS2903 as a pixel IC type. Let us help you with your pixel LED installation – get in touch for more information.

Technical Specifications #

Clock TypeData-Only
Color Resolution8 bits
Physical PackageSOP8
RGBYes
RGBWSee UCS2904
Output Pixel Voltage5 – 24V
PWM Rate1600Hz
Suitable CameraUp to 54fps, see Refresh Rate and PWM Rate
Data Transfer Rate800kbps
Redundant Data LineNo

UCS2903 Pros

  • The voltage can reach up to 24V, enabling the use of very long cables
  • High PWM rate allows for filming at up to 54fps with cameras

UCS2903Cons

  • The refresh rate is limited by the speed of the protocol, typically resulting in slower rates
  • Only 8 bits of data for each color may result in less smooth dimming curves
  • There is no redundancy in the data.
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