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	一种新的锁相环自调谐方案
	黄水龙 ; 王志华 ; HUANG Shui-long ; WANG Zhi-hua
	2010-06-09 ; 2010-06-09
关键词	锁相环 自调谐 压控振荡器 Phase locked loop Self-tuning Voltage controlled oscillator TN74
其他题名	A Novel Scheme of Self-Tuning for Phase Locked Loop
中文摘要	提出了一种用数字和模拟电路的方法实现宽调谐范围,减小VCO增益的方案。该方案将宽调谐范围分成一系列相互重叠的子带,用数字调谐电路来设置安排正确的子带频率,结合模拟调谐,锁相环(PLL)能锁定到正确的频率值。深入讨论了方案的具体实现及相关问题,并实现了一个调谐范围为1.7~2.1 GHz,控制位为5位的自调谐锁相环。SpectreVerilog仿真表明,电路能够有效地工作,在20μs内完成自调谐,并自动切换到模拟调谐,且能工作在复位自调谐和信道切换自调谐两种工作模式,适合应用在全集成、宽调谐范围的VCO锁相环中。; A novel self-tuning scheme is proposed,in which a wide tuning range is realized by digital and analog tuning circuit to reduce VCO gain.The digital tuning scheme divides a wide tuning range into many smaller bands,and self-tuning circuit is used to assign proper subband for a given channel frequency,so that PLL can be locked to proper frequency when combined with analog tuning circuit.A self-tuning PLL with a tuning range from 1.7 GHz to 2.1 GHz and 5-bit control word was implemented based on the proposed scheme.SpectreVerilog simulation shows that the circuit can operate effectively and quickly self-tune to the proper frequency range in 20 μs,and then switch to analog tuning process.Operating at reset self-tuning or channel switching self-tuning mode,the circuit is also applicable for PLL with a fully integrated wide-range VCO.; 国家高技术研究发展计划资助项目(60475018); 国家重点基础研究发展规划部分支持项目(G2000036508)
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/54220]
专题	清华大学
推荐引用方式 GB/T 7714	黄水龙,王志华,HUANG Shui-long,等. 一种新的锁相环自调谐方案[J],2010, 2010.
APA	黄水龙,王志华,HUANG Shui-long,&WANG Zhi-hua.(2010).一种新的锁相环自调谐方案..
MLA	黄水龙,et al."一种新的锁相环自调谐方案".(2010).

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