Land Defense Vehicle Communications
Operational effectiveness is reliant on the rapid exchange of information. And vehicle communication equipment relies on ruggedized timing components that can survive the toughest operating conditions. These timing solutions must survive shock, vibration, and dynamic temperatures, while offering low power consumption and small size.
SiTime ruggedized Endura™ timing solutions are built to operate in harsh environments, overcoming the inherent weaknesses of quartz and delivering low failure rates, long-term reliability, and robust performance.
SiTime Ruggedized Endura MEMS Timing Benefits
Precision Timing20x better mechanical shock survivability ±100 ppb up to 105°C Digital tuning to ±5 ppt |
Most Robust in Harsh Conditions4x better vibration resistance 4x better dF/dT, airflow and heat resistant Extended operating temperature range |
Higher ReliabilityConforms to MIL-PRF-55310 No quartz reliability issues No cover or shielding |
Land Defense Vehicle Communications Block Diagram
Endura MEMS Timing for Land Vehicle Communications
| Devices | Frequency Stability | Function | Key Features |
|---|---|---|---|
|
Super-TCXOs
SiT5346 1 to 60 MHz
SiT5347 60 to 220 MHz
SiT5348 1 to 60 MHz
SiT5349 60 to 220 MHz
|
±0.1 to ±0.25 ±0.1 to ±0.25 ±0.05 ±0.05 |
Reference clock for baseband | 1 to 220 MHz, 0.004 ppb/g, ±100 ppb, ±1 ppb/°C |
|
Differential oscillators
SiT9346 1 to 220 MHz
SiT9347 220 to 725 MHz
|
±10 to ±50 | FPGA & processor clocking | 1 to 725 MHz, ±10 ppm, 0.1 ps RMS phase jitter |
|
Single ended oscillators
SiT8944 1 to 110 MHz
SiT8945 115 to 137 MHz
SiT2044 1 to 110 MHz
SiT2045 115 to 137 MHz
|
±20 to ±50 | FPGA & processor clocking | 1 to 137 MHz, ±20 ppm, -55°C to 125°C |
Endura Timing Outperforms Quartz
Best-in-Class-Aging |
Lower Acceleration (g) Sensitivity |
|---|---|
|
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Endura Timing Outperforms Quartz
Acceleration Sensitivity
Mechanical Shock
Quality
Reliability MTBF (Million Hours)
Tested in Accordance with MIL Specifications
| MIL-PRF-55310 | Test | Single-ended XO | Differential XO/VCXO/DCXO | TCXO |
|---|---|---|---|---|
| 3.6.40.1 | Shock | ● | ● | ● |
| 4.8.18.3.1 | g-Sensitivity | ● | ● | ● |
| 3.6.34.1 | Frequency aging | ● | ● | ● |
| 3.6.17.1 | g-Sensitivity, constant acceleration | ● | ● | ● |
| 3.6.38.3 | Phase noise under vibration | ● | ● | ● |
| 3.6.10.2 | Frequency-temperature stability with hysteresis | ● | ● | ● |
| 3.6.45.2 | Ambient pressure | ● | ● | ● |
| 3.6.16.5 | Allan deviation | n/a | n/a | ● |
| 3.6.10.4 | Frequency-temperature stability with hysteresis and trim effect | n/a | ● | ● |
| 3.6.15 | Retrace | n/a | n/a | ● |
| 3.6.30.7 | Modulation frequency response | n/a | ● | ● |
| 3.6.41.1 | Acceleration survivability | ● | ● | ● |
| 3.6.7 | Frequency warm up | n/a | n/a | ● |
