Equalizers
  • GS12241
  • 12G UHD-SDI Re-timing Adaptive Cable Equalizer
  • GS12141
  • 12G UHD-SDI Retiming Adaptive Cable Equalizer
  • GS3140
  • Low-power, Multi-Rate Adaptive 3G SDI Equalizer
  • GS6042
  • Long Reach Multi-rate 6G UHD-SDI Adaptive Cable Equalizer
  • GS3441
  • Long Reach, Dual Output, Multi-rate 3G Adaptive Cable Equalizer
  • GS3440
  • Long Reach, Multi-rate 3G Adaptive Cable Equalizer
  • GS2994
  • Multi-rate 3G Adaptive Cable Equalizer
  • GS2993
  • Multi-rate 3G, Dual Output, Adaptive Cable Equalizer
Semtech GS3241

Semtech GS3241

3G HD-SDI Re-timing Adaptive Cable Equalizer

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The GS3241 is a low-power, multi-rate re-timing Cable Equalizer supporting rates up to 3G HD-SDI. It is designed to equalize and restore signals received over 200m coaxial cable at 3G, compensate for DC content of SMPTE pathological signals, and re-time the incoming data. The device supports ST 424 (3G SDI), ST 292-1 (HD-SDI), and ST 259 (SD-SDI) signals and is optimized for performance at 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.

The two trace drivers have highly configurable pre-emphasis and swing controls to compensate for long trace and connector losses.

Features


  • 75Ω cable input 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
  • 3D Input Signal Eye Monitor
  • PRBS generator and checker
  • Automatic cable equalization—typical equalized cable lengths of Belden 1694A cable:
    • 190m at 2.97Gb/s
    • 260m at 1.485Gb/s
    • 450m at 270Mb/s and 125Mb/s
  • Cable equalizer features:
    • Automatic power down on loss of signal
    • Programmable carrier detect with squelch threshold adjustment
    • Programmable launch swing compensation for non-compliant source
    • Manual and automatic cable equalizer bypass
  • Trace driver features:
    • Integrated 100Ω, differential output termination
    • E×tends output DC-coupling support with 1.2V to 2.5V output supply range
    • Trace driver data output pre-emphasis to compensate for up to 60” FR4 at 2.97Gb/s
    • Manual or automatic re-timer bypass
    • Manual or automatic mute or disable on LOS
  • 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
    • 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 GS12141, GS12142, and GS12241

Applications


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