Development of a digitally controlled rubidium atomic oscillator

Author

Ishihara, Naoki ; Fukugawa, Shin-ichi ; Kodama, Shigenori ; Makabe, Takayoshi

Author_Institution

NEC Corp., Kanagawa, Japan

fYear

1990

fDate

23-25 May 1990

Firstpage

59

Lastpage

65

Abstract

A digitally controlled rubidium oscillator (DCRO) which can synchronize another frequency source is described. A±3×10 ^-8 wide frequency control range which has good linearity, and a 1×10^-12 fine control step are highlighted. A synthesizer which has three stage phase locked loop oscillators with variable frequency dividers is discussed. Data for controlling the frequency dividers, written in a 3 Mbit ROM, were calculated using a computer

Keywords

atomic beams; atomic clocks; digital control; frequency control; frequency dividers; frequency measurement; frequency synthesizers; phase-locked loops; rubidium; synchronisation; variable-frequency oscillators; ROM; Rb atomic oscillator; computer; digitally controlled oscillator; fine control step; frequency control; frequency source; linearity; synthesizer; three stage phase locked loop oscillators; variable frequency dividers; Control systems; Digital control; Frequency control; Frequency conversion; Frequency synchronization; Frequency synthesizers; Oscillators; Phase locked loops; Resonant frequency; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control, 1990., Proceedings of the 44th Annual Symposium on

Conference_Location

Baltimore, MD

Type

conf

DOI

10.1109/FREQ.1990.177480

Filename

177480