MEMS resonator for real-time clock and time-keeping apps is industry’s first

MEMS resonator for real-time clock and time-keeping apps is industry’s first

Offered as the first MEMS resonator for real-time clock and time-keeping applications, the SiT1052 enables better frequency stability than quartz, as good as ±5 ppm over temperature, voltage, and process. One-tenth the size of the smallest 32.768-kHz crystal device, it can be cost-effectively integrated inside a plastic package, eliminating all external time-keeping components from an electronic system.

By using the company’s MEMS First process, the MEMS resonator is vacuum sealed in silicon, which eliminates the need for expensive ceramic packages and hermetic sealing. Unlike quartz crystals, SiTime’s MEMS resonator die can be combined with an SOC, ASIC, or ASSP die using either wire-bonding or flip-chip, and encapsulated in a cost-effective standard semiconductor plastic package.

The device can withstand shocks up to 50,000 G and vibration up to 70 G, which is 10 times better than quartz crystals. Additional features include a supply current of less than 1 µA, a frequency of 524 kHz, and a frequency temperature coefficient of –30 ppm/°C. The SiT1052 MEMS resonator is available as known-good die on wafer. (Die samples, $0.25 each; pricing at 25 MU (typical annual volume) is expected to be significantly lower and very competitive with quartz crystals — available now.)

SiTime , Sunnyvale , CA
Piyush Sevalia 408-331-9138

http://www.sitime.com