Fast Warmup Quartz Reference Oscillator.

摘要

The report covers the work in developing a miniature fast warmup quartz oscillator for use in planned tactical communication equipment. The report includes design,fabrication,and performance details of such a device. Electrical,thermal mechanical,and microelectronic design criteria are given in sufficient detail to allow trade-offs with respect to performance goals. To keep the size of this stable 5MHz oscillator within one cubic inch,microelectronic techniques are employed. The resonator is held at its upper turn point and is enclosed in a specially designed isothermal enclosure. The enclosure is held at a constant uniform temperature by a proportional temperature control circuit so that the enclosure is the oven for the resonator. Located on top of the enclosure,and maintained at a constant temperature,are the oscillator,heating transistors,the temperature controller for the enclosure,and a second control circuit. (Modified author abstract)