PORTLAND, Ore. — SiTime Corp. has fielded what it says is the first kilohertz-range microelectromechanical system (MEMS) oscillator chip. The SiT8503 covers the 200-kHz to 1,000-kHz range with claimed five-decimal-place accuracy.
"For silicon MEMS to replace quartz, it will have to support all the segments where quartz currently participates," said Piyush Sevalia, vice president of marketing at SiTime (Sunnyvale, Calif.). "Expansion from the megahertz space to the kilohertz space is another step in the overall siliconization of the quartz industry."
SiTime already claims to have the broadest portfolio of MEMS-based silicon oscillators, voltage-controlled oscillators, resonators, clock generators and spread-spectrum timing products. With the addition of a kilohertz offering, it hopes to become a one-stop-shop for all the timing needs of application developers.
The SiT8503 runs on supply voltages of 1.8 to 3.3 V, can withstand shocks to 50,000 G and vibrations up to 70 G, has configurable frequency stability of +/–20 to +/–50 ppm and consumes 10 microamps in standby mode. Packages measure as small as 2.5 x 2 mm.