GNSS Disciplined Systems

Precision timing is at the heart of GNSS disciplined systems. With our increasingly connected world, a consistent GNSS signal is more critical than ever. SiTime offers highly reliable and ultra-robust MEMS timing solutions that manage the incoming GNSS signal and filter wander to maintain signal lock. If the satellite signal is obstructed or not available, SiTime’s precision devices can keep the system running until the reference is restored.
SiTime MEMS Timing Benefits
A leader in GNSS timing solutionsNavigation infrastructure Financial transactions Wireless network |
Accurate and robustRobust for mobile systems: 30,000g shock Precision tuning: ±5 ppt resolution Faster GNSS lock: ±40 ppt/°C dF/dT |
Easy to use, built to lastCustom configured solution No quartz reliability issues 1 billion hour MTBF |
MEMS Timing for GNSS Disciplined Systems
Devices | Function | Frequency | Features |
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SiT515x Super-TCXO | Filter wander from incoming GNSS, maintain signal lock | 1 to 220 MHz | ±0.5 to ±2.5 ppm , ±15 ppb/°C, 70g vibration survivability |
SiT535x Super-TCXO | 1 to 220 MHz | ±50 to ±250 ppb , ±1 ppb/°C, 70g vibration survivability | |
SiT5721 Digitally Controlled OCXO | 1 to 60 MHz | ±5 ppb, ±40 ppt/°C, I2C Programmable | |
SiT5711 Precision OCXO | 1 to 60 MHz | ±5 ppb, ±40 ppt/°C | |
SiT95141 Clock Generator | Clock management and facilitate feedback loop | 8 kHz to 2.1 GHz | 4 input and 10 output, 4 PLL |
MEMS Timing Outperforms Quartz
Better Stability |
Better Frequency Slope |
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Faster Warm Up |
Better Vibration Resistance |
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Better Allan Deviation |
Better Aging |
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Watch Video: Elite Super-TCXO Improves GNSS Robustness
Featured Resources
• Timing Solutions for Industrial
• AN10063 TCXO and OCXO Stability and System Impact Beyond Rated Temperature
• AN10064 Improved System Performance with Digital Frequency Tuning in Precision Super-TCXOs
• AN20003 SiT9514x Power Supply Noise Rejection
• AN20011 SiT9514x Dynamic Control of Outputs
• Elite Platform MEMS Super-TCXOs and Oscillators FAQs
• Resilience and Reliability of Silicon MEMS Oscillators
• Video: How to Design with SiTime TCXOs and OCXOs
See full list of related resources
