Select high-quality MEMS oscillators for aerospace and defense applications!

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Basic Analog Clock Aerospace SiTime

Stringent requirements for "aerospace and defense" applications

What oscillator would you choose for your aerospace and defense application?

Applications such as those used in aerospace, such as "wireless" and "satellite communications", "precision GNSS", "avionics", and "military equipment", require extremely stringent clock source accuracy, reliability, Quality is demanded.

It is necessary to select oscillators of quality grade according to the usage environment, such as consumer grade for consumer equipment, industrial grade for industrial equipment, and automotive grade for automotive equipment. "Oscillator selection" that can withstand "environment" will be essential in the future.

“Why” are oscillators required to have such high performance and quality?

A clock is a kind of "conductor" that is indispensable to any application.

Why is it necessary to select an oscillator that prioritizes performance and quality in aerospace and defense applications?

Here are the main reasons. (*Depending on the application, this may not be the case.)

・"Shock wave vibration" accompanying supersonic speed is too intense

・Frequency fluctuates due to sudden temperature changes (out of spec, causing malfunction of applications, etc.)

・Due to the above factors, the timing clock accounts for a large proportion of the performance issues that occur during system verification, operation confirmation testing, and operation.
Customers developing applications spend an enormous amount of time troubleshooting and validating with their end customers.
This trend is expected to accelerate as the market grows.

What SiTime's Aerospace & Defense Grade MEMS Oscillators Can Do

Here, we will explain the features of SiTime products, which are rapidly increasing in adoption in aerospace and defense (especially in defense applications).

In the contents of the column so far, it goes without saying that MEMS oscillators using silicon have an advantage in terms of quality compared to crystal, but this reliability part is the SiTime product for aerospace and defense applications. This is probably the biggest advantage of adopting .

・Recommended point 1: “We are conducting screening”

→ Final test 100% temperature cycle test and shock resistance test!

・Recommended point 2: “Characteristics guarantee”

→ Robust characteristics are guaranteed against shock and vibration!

・Recommended Point 3: “Achievements”

→ We have a track record in many markets, so please contact us using the inquiry form for details.

・ Recommended point 4: "Performance"

→ We have a lineup that boasts frequency stability of ±0.2 ppm in the temperature range of -55°C to 105°C.

This is approximately 25 times the performance of conventional crystal products.

When compared with the period in which time accuracy of 1 second can be maintained...

Conventional crystal products: 14 days / SiTime MEMS oscillators: 1 year, the difference is clear.

Product lineup

You can check the product lineup from the link below.

If there is a product you are interested in, please contact us from this inquiry form after specifying the model number.

*The following links will transition to external manufacturer sites.

1. TCXO (Temperature Compensated Oscillator) class oscillator

2. Single-ended (CMOS) oscillator

3. Oscillator with spread spectrum function

4. Differential compatible oscillator

5. DCXO (Digitally Controlled Oscillator)

6. VCXO (voltage controlled oscillator)

At the end

What did you think.

This time, we explained the points in selecting oscillators for aerospace and defense applications, and also introduced the SiTime lineup.

Please feel free to contact us if you have any questions during the design process.

Inquiry / Quotation

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