GS8303 Pixel Protocol

Manufacturer: Genesis-Systech

The GS8303D is a Genesis-Systech single-wire NRZ pixel driver that runs RGB LEDs at 16-bit grayscale and a 48kHz refresh rate over a dual-wire redundant data path.

Specifications

Clock TypeData-Only
Color Resolution16 Bits
Physical PackageSOP8 / SOT23-8
RGBYes
RGBWNo
Output Pixel Voltage7.5 to 30V
PWM Rate48kHz
Suitable CameraCamera-safe, comfortably flicker-free at high frame rates
Redundant Data LineYes

Strengths

  • 16-bit (65536-level) grayscale per channel for fine, smooth color and dimming control
  • 48kHz refresh rate keeps output comfortably flicker-free on camera at high frame rates
  • Dual-wire redundant data path adds reliability, since a single data-line break does not kill the remainder of the run

Limitations

  • RGB-only with three channels, so it cannot drive a dedicated white channel
  • Not pre-listed on ENTTEC pixel controllers, so it requires a custom pixel-protocol setup with the chip timing added; there is little English-language datasheet presence

Overview

The GS8303D is a data-only LED pixel driver from Genesis-Systech (Shenzhen Junlue Technology). It uses a single-wire NRZ (return-to-zero) self-clocked pixel protocol, so pixels cascade on one data conductor with no separate clock line. The part drives three channels (RGB) at 16-bit grayscale per channel and refreshes at 48kHz, and it operates across a wide 7.5 to 30V working-voltage range. Its distinguishing feature is a dual-wire redundant data topology, which provides a backup data path so a single break in the line does not take down the rest of the run. ENTTEC is not affiliated with Genesis-Systech.

Using this protocol with ENTTEC

This is a data-only single-wire SPI-style pixel chip and is not pre-listed on ENTTEC pixel controllers. It is supported through ENTTEC's custom pixel-protocol creation, where you add the chip's NRZ timing to define the protocol before driving it.

ENTTEC has been engineering lighting control in Australia since 1999, and shipping LED pixel controllers since the original Pixelator in 2014.