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介绍了一种改进型的电荷平均电荷泵以及相应的电路实现.文章在对Yido Koo首先提出的电荷平均电荷泵结构分析的基础上提出了改进型的实现方式.相比于原结构,这种新型电路能够节省1/3的功耗并且消除了原先结构在实际实现中的一些问题.Spectre Verilog行为级仿真结果证明该结构能够有效降低杂散能量.本文同时设计了一个针对分数分频比为1/3的小数频率综合器的改进型电荷共享电荷泵,并通过多层次仿真的方式来验证其可行性.从仿真结果可以看出,这种新结构输出电压稳定,从而能够有效消除频率综合器中的分数杂散.
An improved charge-average charge pump and corresponding circuit implementation are introduced.An improved method is proposed based on the structural analysis of the charge-average charge pump first proposed by Yido Koo.Compared with the original structure, this kind of The new circuit can save 1/3 power consumption and eliminate some problems in the actual implementation of the original structure.Spectre Verilog behavioral simulation results show that the structure can effectively reduce the stray energy.This paper also designed a fractional frequency-division ratio 1/3 fractional frequency synthesizer improved charge-sharing charge pump and verify the feasibility of multi-level simulation.From the simulation results can be seen that the new structure of the output voltage is stable, which can effectively eliminate the frequency synthesis The score in the spur.