Semtech GS12341

12G UHD-SDI Reclocking Adaptive Cable Equalizer

The GS12341 is a low-power, multi-rate reclocking Cable Equalizer supporting rates up to 12G UHD-SDI. It is designed to equalize and restore signals received over 80 meters of Belden 1694A coaxial cable at 12G, compensate for DC content of SMPTE pathological signals, and reclock 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 11.88Gbps. In addition to standard SMPTE rates, the device also supports re-timing of DVB-ASI at 270Mbps, and MADI at 125Mbps. 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 reclocking 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:
  • I80m at 11.88Gb/s
  • I100m at 5.94Gb/s
  • 190m at 2.97Gb/s
  • 260m at 1.485Gb/s
  • 450m at 270Mb/s and 125Mb/s
• Cable equalizer features:
  • Improved reach with stress patterns
  • 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 reclocker bypass
  • Manual or automatic mute or disable on LOS
• Reclocker features:
  • Manual or automatic rate modes
  • Wide Loop bandwidth control
  • Reclocking 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 GS12241, GS12141, GS12142, and GS3241
  • Pb-free/Halogen-free/RoHS and WEEE compliant package

Applications

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.