設計晶體調頻振蕩器頻偏的新公式
NEW FORMULAS FOR DESIGNING FREQUENCY DEVIATION OF CRYSTAL FM OSCILLATOR
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摘要: 本文在分析晶體調頻振蕩器振蕩頻率的基礎上,得出了晶體調頻振蕩器頻偏的一般表示式、最佳負載條件下的頻偏設計公式和調制級有電流串聯(lián)負反饋時的頻偏設計關系式。
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關鍵詞:
Abstract: On the basis of analyzing the oscillatory frequency of crystal oscillator, the general expression of the frequency deviation of crystal frequency-modulation oscillator is de-rived. The design formulas of the frequency deviation under optimum load condition and under condition of the modulating stage with series negative current feedback are also given. -
P. W. Wood, Electronics, 32(1959), 5, 64.[2]R. E. Sentz and R. A. Bartkowlak, Feedback Amplifiers and Oscillators, Holt, Rinehart and Wiston, Inc., New York, 1968, pp. 137-139.[3]清華大學通信教研組,高頻電路,人民郵電出飯社,1983, p. 508.[4]M. E. Frerking, Crystal Oscillator Design and Temperature Compensation, Litton Educational Publishing Inc., New York, 1978, pp. 20-48.[5]謝嘉奎,電子線路(非線性部分),高等教育出版社,1984,pp. 229-246. -
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