MEMS oscillators feature +/-20-ppm stability

The low-cost CMEMS Si501, Si502, Si503 MEMS-based oscillators offer 32-kHz to 100-MHz frequencies with ±20-, ±30-, and ±50-ppm stability options. They are specified over –20° to 70°C or –40° to 85°C and come in standard 2 x 2.5-, 2.5 x 3.2-, and 3.2 x 5-mm packages.

CMEMS technology enables 10-year frequency stability including solder shift, load pulling, VDD variation, operating temperature range, vibration, and shock. The Si501 is single-frequency with output-enable, the Si502 is dual-frequency with OE and frequency-select, and the Si503 is quad-frequency with frequency-select. They operate from 1.8, 2.5, or 3.3 V and are available now. They cost from $0.44 ea/10,000.