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(VC)TCXO Stratum 3 HCMOS

JTSxxHC-Serie is a (voltage controlled) temperature-compensated crystal oscillator with sophisticated features to meet the requirement for the reference clock of Stratum 3. Its comprehensive compensation technique can guarantee very tight stability over a wide range of operating temperatures. The short- and long-term aging is well controlled to only allow a total +/-4.6ppm frequency excursion with all defined environmental variations and up to 20-year duration. The  3.3V (VC)TCXOs with an HCMOS output in a 7050 / 5032 package are compliant with ITU-T G.8262 Options 1 & 2 and Stratum 3 GR-1244 Core & CR-253-Core. It is dedicated well to synchronous Ethernet equipment clocks (EEC) and synchronous OTN equipment clocks (OEC).

(VC)TCXO Stratum 3 HCMOS
Type
Fre­quency range (MHz)
Size (mm)
JTS53HC(V)
9.6 - 50.0
50 x 3.2 x 1.7 mm
Type
JTS53HC(V)
Fre­quency range (MHz)
9.6 - 50.0
Size (mm)
50 x 3.2 x 1.7 mm
JTS53HC(V)
JTS75HC(V)
9.6 - 50.0
7.0 x 5.0 x 2.2 mm
Type
JTS75HC(V)
Fre­quency range (MHz)
9.6 - 50.0
Size (mm)
7.0 x 5.0 x 2.2 mm
JTS75HC(V)

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5G or even 6G era needs more strict synchronization in a network to sustain the functionalities, especially for eMBB (enhanced mobile broadband) and URLLC (Ultra Reliability and Low Latency Communication).

IEEE-1588v2 protocol and Synchronous Ethernet are two essential solutions to deliver the clock accuracy from UTC to each Stratum level in a synchronous hierachy.

The TCXOs JTS75HC and JTS53HC perform a compliant holdover capability letting the clock integrity be kept up for at least as long as the Stratum 3 standard clock when the timing signal of master sources absents.

  • Compliance with ITU-T G.8262 Options 1 & 2 and Stratum 3 in GR-1244 Core & CR-253-Core.
  • Free-run frequency stability of +/-4.6ppm including 20-year aging
  • 24-hour holdover stability of +/-0.37ppm with temperature variation
  • Frequency Stability as tight as ±50ppb
  • Operating temperature range as wide as -40 to 105°C
  • Short term frequency stability (ADEV) of 0,1ppb typ. at τ = 1 sec
  • Phase noise as low as -159 dBc/Hz @100kHz offset
  • Frequency range 9.6MHz to 50.0MHz
  • Current consumption as low as 10mA max with HCMOS output
  • Various tuning options available