Simultaneous Multimode Oscillation of Stress-Compensated Cut Quartz Resonator with Narrow-Band Wide Variable-Range Quartz Crystal Oscillator

Sato, Tomio; Akitsu, Takashiro

doi:10.4236/eng.2014.613088

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2015

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“…Tuning fork type Q-MEMS quartz crystal sensor realizes the direct digital sensing of temperature, where Q-MEMS is a combination word of Quartz and MEMS (Micro Electro Mechanical System), a fabrication process offering high performance in a compact package, with CI values as low as those on ordinary-sized crystals. In recent works, double-resonance quartz crystal oscillator was reported for the enhancement of the frequency pulling [8], the mode separation of the multimode quartz crystal resonator [9] [10], and the start-up acceleration of low frequency quartz crystal oscillator circuit [11]. Start-up acceleration of several Mega Hertz is studied by the gain control in the quartz crystal oscillator using a cascade circuit [12]- [14].…”

Section: Introductionmentioning

confidence: 99%