在锁相环吞脉冲频合器中实现可调小数分频  

A New Broken Number Frequency Division Theory Based on Swallowing Pulse PLL Frequency Synthesizer

作　　者：杨志人[1] 容太平[1] 王凡[1] 

机构地区：[1]华中理工大学电子与信息工程系

出　　处：《华中理工大学学报》1998年第6期35-36,共2页Journal of Huazhong University of Science and Technology

摘　　要：推导出了吞脉冲技术锁相环频率合成器的输出频率Ｆｏ、双模前置分频器的输出频率Ｆｐ和参考频率Ｆｒ之间的关系式．经宽覆盖（１３８．０００～１６７．０００ＭＨｚ）、高稳定度（１０－６）、多通道（每通道间隔２５ｋＨｚ）频合器实验论证，关系式成立．应用此关系式提出了一种新的小数分频理论和实现电路框图，该理论能解决单环频合器中高鉴相频率与高频分辨率之间的矛盾．According to the theory of swallowing pulse PLL frequency synthesizer, the formula of the broken number frequency dividing ratio or the relation between Falt and F o of frequency divider, i.e. Falt= F o/( P+A/M ), are derived. A new broken mumber frequency division theory and a circuit diagram to realize the theory are proposed. It has settled the contradiction between the high pulse detection frequency and the high frequency resolution of the single PLL frequency synthesizer.

关 键 词：频率合成器 吞脉冲技术 小数分频 分频器 

分 类 号：TN772[电子电信—电路与系统]