GS8304 Pixel Protocol

Manufacturer: Genesis-Systech

The GS8304D is a Genesis-Systech single-wire, data-only RGBW LED driver IC with 16-bit grayscale per channel, a 48kHz refresh rate, and a dual-wire redundant data path, housed in an SSOP10 package.

Specifications

Clock TypeData-Only
Color Resolution16 Bits
Physical PackageSSOP10
RGBNo
RGBWYes
Output Pixel Voltage7.5 to 30V
PWM Rate48kHz
Suitable CameraCamera-safe, comfortably flicker-free at high frame rates
Redundant Data LineYes

Strengths

  • 16-bit grayscale per channel (65536 levels) for smooth, deep dimming and fine color gradation
  • 48kHz refresh rate keeps output comfortably flicker-free and camera-safe at high frame rates
  • Dual-wire redundant data path adds reliability: a single data-line break need not take out the rest of the chain, and the 3MHz data rate supports longer high-resolution runs

Limitations

  • Data-only single-wire chip that is not pre-listed on ENTTEC pixel controllers; using it requires setting up a custom pixel protocol with the chip's timing
  • Little English-language datasheet presence, as it is a Genesis-Systech (Shenzhen Junlue Technology) part documented primarily in Chinese

Overview

The GS8304D is a data-only LED driver chip from Genesis-Systech, controlled over a single NRZ self-clocked data line with no separate clock conductor. It drives four channels (RGBW) with 16-bit grayscale resolution per channel, refreshes at 48kHz, and operates across a 7.5 to 30V pixel supply range in an SSOP10 package. A distinguishing feature is its dual-wire redundant data topology, which provides a backup data path so a single break in the data chain does not necessarily kill the downstream pixels. It also supports a 16-bit display mode control and a 3MHz data rate for driving longer high-resolution runs. ENTTEC is not affiliated with Genesis-Systech.

Using this protocol with ENTTEC

This is a data-only single-wire SPI-style pixel chip, so it is not pre-listed among the supported protocols on ENTTEC pixel controllers. It can still be driven by adding the chip's timing through ENTTEC's custom pixel-protocol creation feature, after which an ENTTEC pixel controller can output to it.

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