Immune to shock and vibration

Immune to shock and vibration

Need to perform in harsh environments?
SiTime timing solutions can help.

As the world becomes more connected, electronic systems are finding their way into all corners of our lives – from the devices carried in our pockets to the dozens of sensors in our cars. But as electronic devices surround us in every type of environment, they are no longer protected from harsh mechanical shock and vibration. Not a problem for SiTime MEMS-based oscillators which are inherently immune to external disturbances.

30,000g
shock resistance
0.004 ppb/g
acceleration sensitivity*
70g
vibration resistance

Check out our ultra-robust timing solutions

MEMS Timing Solutions Resilience** Key Features
Up to 30,000g shock
70g vibration
1 to 725 MHz, LVCMOS XOs, Differential XOs, VCXOs, DCXOs, SSXOs
30,000g shock
70g vibration
Stratum 3/3E, 1 to 220 MHz, ±0.05 to ±2.5 ppm, +105°C, temp-resilient
Up to 30,000g shock
70g vibration
Ultra-robust Super-TCXOs, XOs, Differential XOs, VCXOs, DCXOs, SSXOs
Up to 30,000g shock
70g vibration
AEC-Q100 Super-TCXOs, XOs, Differential XOs, SSXOs, 125°C

10,000g shock
70g vibration

Ultra-small 1.2 mm2 CSP, low power
10,000g shock
20g vibration
Stratum 3E, 1 to 60 MHz, ±5 to ±8 ppb, +85°C, temp-resilient
Up to 30,000g shock
70g vibration
1 to 725 MHz, crystal resonator replacement w/ better reliability, 125°C
30,000g shock
70g vibration
Clock-system-on-a-chip products with integrated MEMS resonator

* Typical acceleration (g) sensitivity of ultra-low sensitivity grade Endura ruggedized Super-TCXO products; total gamma over 3 axes; 15 Hz to 2 kHz; MIL-PRF-55310
** Peak acceleration using Mechanical Shock (MS) MIL-STD-883 Method 2002 and Variable Frequency Vibration (VFV) MIL-STD-883 Method 2007
For more details on tests, including Vibration Fatigue (VF) and Constant Acceleration (CA), register or login to see our Product Reliability Qualification Reports.
 

MEMS Timing Outperforms Quartz

Since oscillators rely on vibration and mechanical resonance, external movement can couple into the device and degrade its performance, creating frequency shifts and increasing phase noise in quartz oscillators.

Without special corrective measures such as shock mounts, SiTime MEMS-based oscillators have low sensitivity to acceleration. Random or periodic mechanical vibrations found in portable devices that are exposed to significant vibration or in stationary units located near vibrating machinery or by a nearby cooling fan have little effect on SiTime products.

SiTime oscillators are inherently immune to shock and vibration. The small mass of a MEMS resonator (1000x to 3000x smaller than quartz crystal resonators) and its physical design, make them resilient against external motion.

Better Vibration Resistance

Lower Acceleration (g) Sensitivity

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SiTime – Better Vibration Resistance
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SiTime – Lower Acceleration (g) Sensitivity
Whack an OCXO!

Whack an OCXO!

Watch real-time frequency data as a SiTime MEMS TCXO and a quartz OCXO are “whacked” at the same time, with the same amount of shock.

Watch video

Additional Resources

• Technology Paper: Shock and Vibration Comparison of MEMS and Quartz-based Oscillators

• Timing Essential Learning Hub Course: Common Timing Issues and Solutions

• Timing Essential Learning Hub Course: MEMS Oscillators Fundamentals

• More details: SiTime Product Qualification Reports

 

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