1 to 60 MHz, ±50 ppb Super-TCXO

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The SiT5358 is a ±50 ppb precision MEMS Super-TCXO. This device is engineered for best dynamic performance. It is fully compliant to the GR-1244 Stratum 3 oscillator specifications. By leveraging SiTime’s unique DualMEMS™ and TurboCompensation™ temperature sensing technology, the SiT5358 delivers the most stable timing in the presence of environmental stressors – airflow, temperature perturbation, vibration, shock, and electromagnetic interference (EMI).

SiT5358 can be factory-programmed to any combination of frequency, voltage, and pull range. This programmability enables designers to optimize the clock configuration while eliminating the long lead time and customization costs associated with quartz TCXOs where each frequency is custom built.

View related products: 60 to 220 MHz | Ruggedized | TCXO lineup

Watch dynamic performance of Elite Super-TCXO vs 50-ppb quartz TCXO under airflow, temp. ramp, tap test, and VDD fluctuation


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Image: Elite TCXO Ceramic 5032 10-pin package, top & bottom
"Specs" "Value"
Frequency 1 to 60 MHz
Frequency Stability (ppm) ±0.05
Operating Temperature Range (°C) 0 to +70 , -20 to +70 , -40 to +85 , -40 to +105
Package Type (mm²) 5.0 x 3.2 10-pin
Oscillator Type TCXO-SE
Phase Jitter (rms) 0.31 ps
Pull Range (ppm) ±6.25 , ±10 , ±12.5 , ±25 , ±50 , ±80 , ±100 , ±125 , ±150 , ±200 , ±400 , ±600 , ±800 , ±1600 , ±3200
Voltage Supply (V) 2.5 , 2.8 , 3.0 , 3.3
Features Precision TCXO
Availability Production

Exceptional dynamic stability under airflow, fast temp. ramp

  • ±50 ppb over-temp. stability from 0 to 70°C and ±100 ppb outside this temp. range
  • 3e-11 ADEV at 10 second average time
  • ±1 ppb/°C frequency slope (ΔF/ΔT), 1,, , °C/min ramp
    • Ensures system-level quality of service for telecom and networking equipment in hostile environments

20x better phase noise under vibration

  • Minimizes call and/or link drops in high-vibration environments

No activity dips or microjumps

  • Eliminates any need for costly screening or burn-in tests

0.2 ps/mV power supply noise rejection (PSNR)

  • Reduces BOM by eliminating a dedicated LDO for TCXO

LVCMOS or Clipped sinewave output

  • Optimizes for best balance between EMI and jitter

Rich programmable features

  • Any frequency between 1 to 60 MHz
  • 2.25 to 3.63 V
  • Large pull range from ±6.25 to ±3200 ppm
    • Customize TCXO specifications for optimal system performance

Digital frequency tuning through I2C

  • Eliminate frequency shift caused by board noise

Superior reliability

  • 1 billion hours MTBF
  • Lifetime Warranty: Reduces repair costs and field failures due to clock components
  • SONET/SDH Stratum 3
  • Synchronous Ethernet (G.8262, options 1 and 2)
  • Small Cells
  • IEEE 1588 Boundary Clocks & Grandmasters
  • Optical Transport (OTN, OLT, etc.)
  • Cable Model Termination System (CMTS)
  • COSPAS / SARSAT
  • Broadband Satellite
  • Instrumentation
  • Serial-data Links
  • Wireless & Backhaul
  • Fiber, Cable, DSL
  • Precision GNSS
  • LiDAR & Radar
  • GPS / GNSS Modules
  • Smart Meters
  • Defense & Aerospace
  • Railroads
  • Long-range Communications
  • Asset Tracking
  • Indoor Positioning
  • Smart Agriculture
  • Smart City

Frequency Slope (dF/dT) Calculator – Calculate frequency slope over temperature

Time Error Simulation Software – Simulate and analyze the impact of the local oscillator

TimeMaster Configuration Software – Configure and evaluate oscillators via I2C/SP

Reliability Calculator – Get FIT/MTBF data for various operating conditions

Ceramic 5032 10-Pins 3D Step Model – Preview oscillator packages in 3D  

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