SIT5146
- Brand： SITIME
- Size/Package： 5.0 x 3.2 x 0.95 mm
- Parameter： 1-60MHz
- Supply Voltage： 2.5, 2.8, 3, 3.3V
- Output： LVCMOS,Clipped Sinewave
- Freq Tolerance： ±0.5, ±1, ±2.5ppm
- Operating Temp： -55℃~105℃
- Package： 10P 5032
- Applications： Airborne Communications,Command & Control
- Parameters
- Brand： SITIME
- Size/Package： 5.0 x 3.2 x 0.95 mm
- Parameter： 1-60MHz
- Supply Voltage： 2.5, 2.8, 3, 3.3V
- Output： LVCMOS,Clipped Sinewave
- Freq Tolerance： ±0.5, ±1, ±2.5ppm
- Operating Temp： -55℃~105℃
- Package： 10P 5032
- Applications： Airborne Communications,Command & Control
The Endura™ SiT5146 is a ruggedized ±0.5 to ±2.5 ppm Super-TCXO with an acceleration sensitivity as low as 0.009 ppb/g and wide temp operation from -55°C to +105°C. This device is engineered for systems operating in extremely cold and harsh environments, and is ideal for high-reliability aerospace and defense applications. By leveraging SiTime’s unique DualMEMS™ temperature sensing and TurboCompensation™ technology, the SiT5146 delivers stable timing in the presence of environmental stressors – airflow, temperature perturbation, vibration, shock, and electromagnetic interference (EMI).
This MEMS-based Endura Super-TCXO can be factory-programmed to any combination of frequency, stability, 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.
The SiT5146 is 100% screened through the SiTime Endura™ process flow to provide high reliability.
| Frequency | 1 to 60 MHz |
| Frequency Stability (ppm) | ±0.5 , ±1 , ±2.5 |
| Operating Temperature Range (°C) | -20 to +70 , -40 to +85 , -40 to +105 , -55 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 , 3.3 |
| Features | Ultra-low acceleration sensitivity, MIL-STD-55310, MIL-PRF-883 |
Rugged performance under airflow, fast temp. ramp, extreme temperatures
- ±0.5 ppm over-temp stability, from -55°C to +105°C
- 1.5e-11 ADEV at 10 second average time
- ±1 ppb/°C frequency slope (ΔF/ΔT)
- Ensures better system-level reliability of equipment operation in hostile environments
Best acceleration sensitivity
- As low as 0.009 ppb/g
20x better phase noise under vibration
- Minimizes loss of satellite lock in high-vibration environments
0.2 ps/mV power supply noise rejection (PSNR)
- Reduces BOM by eliminating a dedicated LDO for the TCXO
LVCMOS or Clipped sinewave output
- Optimize for best balance between EMI and jitter
Rich programmable features
- Any frequency between 1 to 60 MHz
- ±0.5 ppm, ±1 ppm, ±2.5 ppm
- 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
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