The SiT5377 is a ±100 ppb precision MEMS Super-TCXO. This device is engineered for an unmatched combination of environmental resilience, low phase noise, low power, and compact size, making it the ideal precision timing choice for RF systems. It is fully compliant to the GR-1244 Stratum 3 oscillator specifications. By leveraging SiTime’s unique DualMEMS™ and TurboCompensation™ temperature sensing technology, SiT5377 delivers the most stable timing in the presence of environmental stressors – airflow, temperature perturbation, vibration, shock, and electromagnetic interference (EMI). For the most precise and robust frequency control, the output of SiT5377 can be digitally pulled by up to ±400 ppm with a resolution of ±0.05 ppt.
SiT5377 can be factory-programmed to any combination of frequency, voltage, and pull range.
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| "Specs" | "Value" |
|---|---|
| Frequency | 60 to 220 MHz |
| Frequency Stability (ppm) | ±0.1, ±0.2, ±0.25 |
| Operating Temperature Range (°C) | -20 to 70, -40 to +85, -40 to +105 |
| Package Type (mm²) | 5.0 x 3.5 10-pin |
| Oscillator Type | TCXO-SE |
| Phase Jitter (rms) | 110 fs |
| Pull Range (ppm) | ±3.125, ±6.25, ±10, ±12.5, ±25, ±50, ±100, ±200, ±400 |
| Voltage Supply (V) | 1.8, 2.5, 2.8, 3.0, 3.3 |
| Features | Low-phase-noise, precision TCXO with digital control |
| Availability | Pre-production Sampling |
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Image: Elite TCXO Ceramic 5032 10-pin package, top & bottom
Up to 220 MHz output frequency
- Eliminates need for frequency multipliers
Exceptional dynamic stability under airflow, fast temp. ramp
- ±100 ppb over-temp. stability from -40 to 105°C
- 8e-12 ADEV at 10 second average time
- ±0.9 ppb/°C frequency slope (ΔF/ΔT), 1°C/min. ramp
- Ensures system level quality of service for telecom and networking equipment in hostile environments
RF-grade phase noise, 20x better under vibration
- -159 dBc/Hz at 10 kHz offset (19.2 MHz offset)
- 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 60 to 220 MHz
- 1.8 to 3.3 V
- Large pull range from ±3.125 to ±400 ppm:
- Customize TCXO specifications for optimal system performance
Digital frequency tuning through I2C or SPI
- 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
- Wireless Equipment
- RF Signal Chain
- 4G / 5G RRH, DU
- Small Cells
- Microwave Backhaul
- Jitter Cleaners
- Satellite Base Station
- GPS / GNSS Modules
- Radar
- IEEE 1588 Boundary Clocks & Grandmasters
- Fiber, Cable, DSL
- Instrumentation
- Test & Measurement
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
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