| 振荡器谐振回路的参数选择 |
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| 引用本文： | 严刚峰,雷霖,徐宁璟,黄显核.振荡器谐振回路的参数选择[J].电子器件,2012,35(4):440-443. |
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| 作者姓名： | 严刚峰 雷霖 徐宁璟 黄显核 |
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| 作者单位： | 成都大学电子信息工程学院;电子科技大学自动化工程学院 |
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| 基金项目： | 四川省教育厅科研项目(12ZB172) |
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| 摘 要： | 针对振荡器谐振回路参数的选择较多地依赖于经验的问题,提出了从振荡器的等效电路出发,得到了描述振荡器的非线性微分方程,通过引入随机项来描述振荡器的内部电噪声,由此建立了用于分析振荡器行为的非线性随机微分方程。并针对遗传算法对振荡器谐振回路参数的优选结果,采用10MHz的Pierce晶体振荡器,得出了实证依据。当C1和C2比较接近时,Pierce振荡电路中的相位噪声可得到更好的抑止。
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| 关 键 词： | 振荡器 谐振参数 随机微分方程 相位噪声 |
Optimal selection of oscillator resonant circuit parameters |
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| YAN Gangfeng,LEI Lin,XU Ningjing,HUANG Xianhe.Optimal selection of oscillator resonant circuit parameters[J].Journal of Electron Devices,2012,35(4):440-443. |
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| Authors: | YAN Gangfeng LEI Lin XU Ningjing HUANG Xianhe |
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| Affiliation: | 1.School of Electronic Information Engineering,Chengdu University,Chengdu 610106,China; 2.School of Automation Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China) |
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| Abstract: | Since selection of oscillator resonant circuit parameters depends more on experiences,from the equivalent circuit of the oscillator the nonlinear differential equations are obtained for describing the oscillator.By introducing a stochastic term to describe the internal electrical noise of the oscillator,nonlinear stochastic differential equation is established for analysis of the oscillator behavior.Oscillator resonant circuit parameters on the genetic algorithm optimization results have been used,using Pierce crystal oscillator with 10 MHz,to obtain the experiment evidence.When C1 approaches to C2 in the oscillation circuit,phase noise in the Pierce crystal oscillator can be depriced with great easy depression. |
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| Keywords: | oscillators resonant parameters stochastic differential equation phase noise |
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