MEMS timing devices conform to Mil-Prf-55310 for aerospace and defence

For aerospace and defence applications such as field and satellite communications, precision GNSS, avionics, and space, SiTime has released Endura timing devices.

They are engineered for harsh conditions, such as severe shock, vibration, and extreme temperature in aerospace and defence applications. According to the company, the devices also offer maximum choice to customers with five million possible part numbers that can be created from 17 programmable products.

“When exposed to high levels of shock, vibration and extreme temperatures, legacy timing components have been prone to failure, degrading system performance and reliability,” explains Piyush Sevalia, executive vice president of marketing at SiTime. The company created an oscillator system of silicon MEMS, analogue circuits, compensation algorithms and advanced packaging, designed to outperform any other available timing solution in harsh environments.

“For example,” says Sevalia, “Endura precision TCXOs deliver four parts per trillion per g (ppt/g) of acceleration sensitivity, which is 50 times better than legacy quartz-based solutions.”

He believes Endura will transform the oscillator landscape in aerospace and defence. SiTime’s broad portfolio of commercial off the shelf (COTS) Endura products include six oscillator types and 17 products. All devices offer programmable options such as frequency, operating voltage, and stability. In addition, some devices offer specialised programmable features such as spread spectrum, pull-range, and differential output type. Endura products are available with up to two grades of acceleration sensitivity, as low as four ppt/g (typical).

Endura products are also designed for continuity of supply for long-life programs.

Samples of Endura products are available now. Production quantities will be available in Q4 2019.

SiTime specialises in MEMS timing and is a wholly owned subsidiary of MegaChips. It offers MEMS-based silicon timing system solutions.

By using standard semiconductor processes and high-volume packaging, SiTime offers short lead times and can meet unforecasted demand.

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