Design of a Miniature High Precision Ovenized Oscillator for GPS Receivers

Andy A. Zelinski, Barry Kleinle

Abstract:	As GPS receivers become smaller, a significant size contributor is its precision frequency reference. This paper describes the development of a 1 cubic inch, VHF, ovenized frequency reference suitable for use in air-borne environments. A review of operational requirements for GPS frequency references identifies frequency stability, fast warm-up, and low power, as key requirements. This paper shows how these criteria are met with this frequency reference design. Producibility of this reference is addressed focusing on manufacturing and testing techniques. Important to the design is parameter sorting of the crystals. A fast and efficient method for crystal sorting is described. Performance results for several production units are presented.
Published in:	Proceedings of the 45th Annual Meeting of The Institute of Navigation (1989) June 27 - 29, 1989 Alexandria, VA
Pages:	51 - 58
Cite this article:	Zelinski, Andy A., Kleinle, Barry, "Design of a Miniature High Precision Ovenized Oscillator for GPS Receivers," Proceedings of the 45th Annual Meeting of The Institute of Navigation (1989), Alexandria, VA, June 1989, pp. 51-58.
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