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MEMS oscillators tout 25ppm frequency stability

Posted: 16 Jun 2009 ?? ?Print Version ?Bookmark and Share

Keywords:MEMS? oscillator? crystal oscillator? MEMS oscillator?

The frequency instability of MEMS oscillators at extreme temperatures has been one of the reasons why crystal oscillators still have a foothold in many industrial applications. That might change now that Discera has expanded its PureSilicon product offering to include industrial temperature ranges (-40C to +85C) with 50ppm and 25ppm frequency stability.

According to Discera, their PureSilicon MEMS oscillators are pin-compatible with popular crystal oscillators and have low operating current specs (3mA typ. at 40MHz), while consuming 1?A in standby mode. MEMS oscillators are more impervious to shock, vibration and fractures than crystal parts. In addition, MEMS oscillators now cost 20 percent less than comparable crystal oscillators, according to Discera.

PureSilicon industrial temperature range oscillator samples are currently available with production volumes available in Q3. PureSilicon oscillators are available in 2.5mm x2mm, 3.2mm x 2.5mm, 5mm x 3.2mm and 7mm x 5mm plastic packages. With 25ppm frequency stability over the industrial temperature range, the 1.8V, DSC1018 device in a 5mm x 3.2mm package is priced at $1.10 each in 1,000-piece quantities.

- Steve Bitton
Industrial Control Designline





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