The GX76470 is a low-power, high-performance, quad-channel linear driver chip. It is designed for 400G/600G optical integrated transmitter small-form factor (SFF) modules for metro and long-haul applications.
The GX76470 integrates quad lanes of driver with SPI circuitry for DC controls on a single die.  Each channel of driver has 100Ω differential AC-coupled input and 55Ω differential DC-coupled output, and linear output voltage of 2.8Vppd suitable for InP multi-level modulations. 


  • Data rate up to 64Gbps per channel for 400G/600G DP-mQAM applications
  • > 40GHz Bandwidth
  • > 10dB dynamic range of gain control
  • < 2.0W (typical) at linear 2.0Vppd 
  • AC-coupled 100Ω differential input/DC-coupled 55Ω differential output
  • Ultra-low inter-channel cross-talk
  • Peaking adjustment functionality 
  • Analog control for gain and output voltage setting, and analog monitor for peak detector and gain control monitor
  • OIF compliant SPI digital interface integration

Product Options

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Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
GX76470 Short-Form Datasheet Short Form Datasheet PDF 170 KB
Optical Interconnect Overview Overview PDF 649 KB