Cable Drivers
  • GS12281
  • 12G UHD-SDI Re-timing Cable Driver
  • GS12081
  • 12G UHD-SDI Cable Driver
  • GS12181
  • 12G UHD-SDI Retiming 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 GS3281

Semtech GS3281

3G HD-SDI Re-timing Cable Driver

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The GS3281 is a low-power, multi-rate, re-timing cable driver supporting rates up to 3G-SDI. It is designed to receive 100Ω 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 75Ω coaxial cables. The 100Ω trace input supports up to 17dB of insertion loss.The device supports SMPTE ST 424 (3G SDI), ST 292-1 (HD-SDI) and ST 259 (SD-SDI). In addition to standard SMPTE rates, the device also supports re-timing of DVB-ASI at 270Mb/s, and MADI at 125Mb/s. The two cable drivers have highly configurable pre-emphasis and swing controls to compensate for long trace and connector losses. Additionally, automatic and user selectable output slew rate control is provided for each cable driver output.

Features


  • Dual non-inverted 75Ω cable interface with on-chip termination
  • SMPTE ST 424, ST 292-1 and ST 259 compliant input/output
  • Multi-standard operation from 1Mb/s to 2.97Gb/s
  • In addition to standard SMPTE rates, the device also supports re-timing of DVB-ASI at 270Mb/s, and MADI at 125Mb/s.
  • Cable driver features:
    • Wide swing control
    • Pre-emphasis to compensate for significant insertion loss between device output and BNC
    • Automatic/manual output slew rate control
    • Manual or automatic re-timer bypass
    • Manual or automatic Mute or disable on LOS
  • Trace equalizer features:
    • Integrated 100Ω, differential input termination
    • 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 60” FR4 at 2.97Gb/s
    • Automatic input offset compensation
  • CDR features:
    • Manual or automatic rate modes
    • Wide Loop bandwidth control
    • Re-timing at the following data rates: 125Mb/s, 270Mb/s, 1.485Gb/s, and 2.97Gb/s. This includes the f/1.001 rates.
  • Additional Features:
    • Single 1.8V power supply for analog and digital core
    • 2.5V or 3.3V for cable 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 and WEEE compliant package
    • Pin compatible with the GS12181, GS12182, GS12081, and GS12281

Applications


SMPTE ST 424, SMPTE ST 292, SMPTE ST 259 and AES10 coaxial cable serial digital interfaces.
 
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