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IQD Frequency Products has shown its first oscillator families based on MEMS (microelectromechanical systems) technology at Electronica 2008.
They are intended as lower cost alternatives to standard XOs (crystal oscillators) and VCXOs (voltage controlled crystal oscillators).
In addition there are package size advantages because the MEMS resonators can be encapsulated directly within a silicon substrate.
Two examples are the IQMS-100 and -200 SPMO (simple packaged MEMS oscillator) product ranges which are designed to replace XOs in automotive applications such as airbag sensors and under-bonnet systems.
The IQMS-100 is a standard-specification range with frequency stabilities of 50 to100ppm over operating temperature ranges of -40° to +85°C or -10° to +70°C. Output frequencies from 1 to 125MHz are available.
The IQMS-200 range offers tighter frequency stabilities down to 25ppm, and output frequencies up to 200MHz. Both SPMOs come as 2.5 x 2mm, 3.2 x 2.5mm, 5 x 3.2mm or 7 x 5mm SMDs, with supply options of 1.8, 2.5 and 3.3V.
The IQMV-300 and -400 are VCMO (voltage controlled MEMS oscillator) families, intended to replace VCXOs in high-volume, low-cost telecommunications applications including wireless equipment and set-top boxes.