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对于一个频率合成器来说,其锁相环的结构和参数选取对其主要技术指标将有很大的影响。本文讨论了在设计超短波通信机的频率合成器时,有针对性地采用双环式方案,来克服仅用单环方案时为取得各项指标最佳而出现的矛盾。摸索到了两环的配合及参数最佳选择的思路和方法。并得出了几条带有结论性的见解。
For a frequency synthesizer, the phase locked loop structure and parameter selection of its main technical indicators will have a great impact. This article discusses the design of UHF frequency synthesizer frequency synthesizer, the targeted use of dual-loop approach to overcome the single-loop solution to achieve the best indicators of the contradictions. Groping the two rings with the parameters and the best choice of ideas and methods. And come to a few with conclusive insights.