Cable Drivers
  • GS12281
  • 12G UHD-SDI Re-timing Cable Driver
  • GS12081
  • 12G UHD-SDI Cable Driver
  • GS3281
  • 3G HD-SDI Re-timing Cable Driver
  • GS6080
  • Multi Rate 6G UHD-SDI Cable Driver
  • GS6081
  • Multi Rate 6G UHD-SDI Dual Output Cable Driver
  • GS2988
  • Multi-rate 3G SDI Cable Driver
  • GS2989
  • Multi-rate 3G SDI Dual Output Cable Driver
  • GS1678
  • Multi-rate HD-SDI Cable Driver
Semtech GS12181

Semtech GS12181

12G UHD-SDI Retiming Cable Driver

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The GS12181 is a low-power, multi-rate, serial digital retiming cable driver supporting 12G UHD-SDI. It is designed to receive 100ohm differential input signals, automatically recover the embedded clock from the digital video signal and re-time the incoming data, and transmit the re-timed signal over 75ohm coaxial cables.
Watch an overview video of the 12G UHD-SDI Solutions


  • Multi-standard operation from 1Mb/s to 11.88Gb/s
  • SMPTE ST 2082-1, ST 2081-1, ST 424, ST 292-1 and ST 259 compliant output
  • Support for DVB-ASI at 270Mb/s and MADI at 125Mb/s
  • Low power operation: appro×. 340mW
  • Single 1.8V power supply for analog and digital core, 2.5V or 3.3V for output supply
  • Differential input support DC-coupling from 1.2V to 2.5V CML logic
  • Automatic power down on loss of signal
  • Programmable trace equalization to compensate for up to 20” FR4 at 11.88Gb/s
  • 75Ω cable driver outputs
    • High levels of pre-emphasis available (up to 8” of FR4) using higher output driver voltage supply
    • Automatic/manual output slew rate control
    • Individually selectable output pre-emphasis to compensate for FR4 losses after chip output at all rates
  • Manual Bypass function for low data rates with slow rise/fall times
  • Configurable automatic bypass for low data rates
  • On-chip 100Ω differential input data termination and 75Ω output termination
  • GSPI serial control and monitoring interface
  • Four configurable GPIO pins for control or status monitoring
  • Wide operating temperature range: -40°C to +85°C
  • 6mm × 4mm 40-pin QFN
  • Pin compatible with the GS12281, GS12182, GS12081, and GS3281
  • Pb-free, Halogen-free, and RoHS/ WEEE-compliant package


  • Next Generation 3D / 2D HFR HDTV and 2K D-Cinema, UHDTV1 and 4K D-Cinema end-equipment: Cameras, Monitors, Switchers etc.
  • Next Generation 3G, 6G, and 12G UHD-SDI infrastructures designed support of UHDTV2, UHDTV1, 4K D-Cinema and 3D HFR and HDR production image formats.
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