Configurable EQ/CD
  • GS3590
  • Bidirectional 3G-SDI Re-timing Adaptive Cable Equalizer/Cable Driver
  • GS3490
  • Configurable Multi-rate 3G Cable Driver and Adaptive Equalizer
Semtech GS12090

Semtech GS12090

Bidirectional 12G UHD-SDI Re-timing Adaptive Cable Equalizer/Cable Driver

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The GS12090 is a low-power, configurable multi-rate re-timing cable equalizer/cable driver supporting rates up to 12G UHD-SDI. It can be configured to equalize or drive signals over 75 Ohm coaxial cable. It includes DC restoration to compensate for the DC content of SMPTE pathological test patterns. Since the GS12090 is a re-timing device, extremely low output jitter is achievable even at extended cable/trace lengths.

Watch an overview of the Semtech GS12090


  • Single bidirectional 75Ω cable interface with on-chip termination
  • SMPTE ST 2082-1, ST 2081-1, ST 424, ST 292-1 and ST 259 compliant input/output
  • Multi-standard operation from 1Mb/s to 11.88Gb/s
  • Supports re-timing for DVB-ASI at 270Mb/s and MADI at 125Mb/s
  • 3D Input Signal Eye Monitor
  • PRBS Generator and Checker
  • Automatic cable equalization. Typical equalized cable lengths of Belden 1694A cable:
    • 60m at 11.88Gb/s
    • 65m at 5.94Gb/s
    • 160m at 2.97Gb/s
    • 240m at 1.485Gb/s
    • 400m at 270Mb/s
  • Cable Equalizer Mode Features:
    • Manual or automatic power-down on loss of signal
    • Programmable carrier detect with squelch threshold adjustment
    • Manual and automatic Cable Equalizer bypass
  • Cable Driver Mode Features:
    • Wide swing control
    • Pre-emphasis to compensate for significant insertion loss between device output and BNC
    • Manual or automatic power-down on loss of signal
    • Manual or automatic Mute or Disable on LOS
  • Trace Equalizer Features:
    • Integrated 100Ω, differential input termination
    • Manual or automatic power-down on loss of signal
    • Adjustable carrier detect threshold
    • DC-coupling from 1.2V to 2.5V CML logic
    • Trace Equalization to compensate for up to 20” FR4 at 11.88Gb/s
    • Automatic input offset compensation
  • Trace Driver Features:
    • Integrated 100Ω, differential output termination
    • DC-coupling from 1.2V to 2.5V CML logic
    • Trace Driver data output pre-emphasis to compensate for up to 20” FR4 at 11.88Gb/s
    • Manual or automatic Mute or Disable on LOS
  • CDR features:
    • Manual or automatic rate modes
    • Manual or automatic Re-timer Bypass
    • Wide-range Loop Bandwidth control
    • Re-timing at the following data rates: 125Mb/s, 270Mb/s, 1.485Gb/s, 2.97Gb/s, 5.94Gb/s, and 11.88Gb/s. This includes the f/1.001 rates.
  • Additional Features:
    • Single 1.8V power supply for analogue and digital core
    • 2.5V for Cable Driver output supply
    • 1.2V, 1.8V, or 2.5V for Trace Driver output supply
    • GSPI serial control and monitoring interface
    • Four configurable GPIO pins for control or status monitoring
    • Wide operating temperature range: -40°C to +85°C
    • Small 6mm × 4mm 40-pin QFN
    • Pb-free/Halogen-free/RoHS & WEEE compliant package
    • Pin compatible with the GS3590


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 in support of UHDTV1, UHDTV2, 4K D-Cinema and 3D HFR and HDR production image formats.

Order Codes

  • GS12090-INE3
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