| 基于可控电流增益和稳定性分析五阶CPPLL的设计 |
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| 引用本文： | 邓茜.基于可控电流增益和稳定性分析五阶CPPLL的设计[J].压电与声光,2013,35(3):458-462. |
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| 作者姓名： | 邓茜 |
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| 作者单位： | 1.江西理工大学 应用科学学院，江西 赣州 341000； |
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| 基金项目： | 国家自然科学基金资助项目(61164020) |
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| 摘 要： | 考虑到可控电流增益技术对电荷泵锁相环性能的影响，该文提出了一种实用的五阶电荷泵锁相环(CPPLL)稳定因子和环路带宽的计算方法，并讨论了此算法快速跳频时稳定性差的原因。结合其他指标，有效减小了电荷泵(CP)电流变化对跳频稳定性的影响。仿真结果表明此设计方法的有效性和分析方法的正确性，这对五阶CPPLL系统设计和仿真有良好的借鉴作用。
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| 关 键 词： | 可控增益 稳定性 环路带宽 五阶电荷泵锁相环(CPPLL) |
Design of 5 Order Charge Pump Phase locked Loop (CPPLL) Based on Controllable Current Gain and Stability Factor |
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| DENG Qian.Design of 5 Order Charge Pump Phase locked Loop (CPPLL) Based on Controllable Current Gain and Stability Factor[J].Piezoelectrics & Acoustooptics,2013,35(3):458-462. |
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| Authors: | DENG Qian |
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| Affiliation: | 1.Jiangxi University of Science and Technology,Ganzhou 341000,China; |
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| Abstract: | Considering the effect of the controllable current gain on the performance of the charge pump phase locked loop (CPPLL), a practical calculating method of the stability factor and loop bandwidth of the 5 order CPPLL has been presented in this paper. After comparing with the conventional design method of 5 order CPPLL, the cause for the poor stability of the conventional CPPLL in fast frequency hopping has been discussed. The proposed method in this work has decreased effectively the influence of the current variation of the charge pump (CP) on the frequency hopping stability. The simulation results have verified the effectiveness of the design method and the correct of the analysis method. The proposed method provides an important reference and guideline for the design of 5 order CPPLL. |
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