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Description

The GS12241 is a low-power, multi-rate re-timing Cable Equalizer supporting rates up to 12G UHD-SDI. It is designed to equalize and restore signals received over 80m coaxial cable at 12G, compensate for DC content of SMPTE pathological signals, and re-time the incoming data. The device supports SMPTE ST 2082-1 (12G UHD-SDI), ST2081-1 (6G UHD-SDI), ST 424 (3G SDI), ST 292-1 (HD-SDI), and ST 259 (SD-SDI) signals and is optimized for performance at 11.88Gb/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 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
  • 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:
    • 80m at 11.88Gb/s
    • 100m at 5.94Gb/s
    • 190m at 2.97Gb/s
    • 260m at 1.485Gb/s
    • 450m at 270Mb/s and 125Mb/s
  • Cable equalizer mode 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
    • Extends output DC-coupling support with 1.2V to 2.5V output supply range
    • Trace driver data output pre-emphasis to compensate for up to 20” FR4 at 11.88Gb/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, 2.97Gb/s, 5.94Gb/s, and 11.88Gb/s—this includes the f/1.001 rates
  • 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: -40ºC to +85ºC
  • Small 6mm x 4mm 40-pin QFN
  • Pin compatible with the GS12141, GS12142, and GS3241
  • Pb-free/Halogen-free/RoHS and WEEE compliant package

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