SC Word Clock-kabel

Da femtosekund-jitter fortsatt var for mye jitter.

$38,000/m
SC Word Clock-kabel

Nøkkelfunksjoner

  • True zero DC resistance eliminates all resistive jitter contribution
  • Meissner effect expels all magnetic interference from the clock signal path
  • Cryo-locked impedance: 77K is a thermodynamic constant — impedance cannot drift
  • Cooper pair transport ensures zero-loss clock edge propagation
  • Sub-0.01ps jitter contribution (below measurement instrument noise floor)
  • Cryo-rated rhodium-plated BNC connectors
  • Annual LN2 subscription available ($310/m/year)

Spesifikasjoner

Leder YBCO (Yttrium Barium Copper Oxide) ceramic
DC-motstand 0.000000 Ω (below Tc)
Impedans 75Ω ±0.000% (cryo-locked)
Jitterbidrag < 0.01 ps (instrument floor)
Kritisk temperatur (Tc) 92K (−181°C)
Driftstemperatur 77K (−196°C) — liquid nitrogen
Kryostat Vacuum-jacketed, dual-wall borosilicate
Magnetisk skjerming Meissner effect (complete flux expulsion)
LN2-forbruk ~310 liters/year per meter
Kontakt BNC (cryo-rated, rhodium-plated)
Bandbredde DC–500MHz
Ytre diameter 34mm (including cryostat)
Vekt 2.4 kg/m (dry), 3.1 kg/m (filled)

YBCO supraleder ved 77 K bærer kloksignaler som Cooper-par — null motstand, null resistiv jitter. Impedans låst ved 75 ohm. Meissner-effekten utelukker alt magnetisk fluks. Jitter under 0,01 ps — instrumentets støygulv.

Liten skrift

  • * Requires liquid nitrogen supply. Jitter specification limited by measurement instrumentation, not by cable. Results in non-equatorial environments may vary.