电荷泵锁相环行为级建模研究

Study on Behavior Level Modeling of Charge Pump PLL

锁相环(Phase Locked Loops,PLL)是现代电子系统中一个至关重要的基本电路,广泛应用于现代通信系统及电子设备中。基于Verilog AMS语言完成了一款典型的电荷泵锁相环的行为级建模和设计,并基于EDA仿真平台进行系统建模描述和仿真。仿真结果验证了模型的可行性,可为后续锁相环晶体管级电路设计提供必备的设计依据和指导。

Phase Locked Loops(PLL)is one of the fundamental circuits in modern electronic systems,due to its widely utilization in modern communication systems and electronic devices.In this paper,we focus on the problem of modeling a typical charge-pump based PLL in system-level based on Verilog-AMS hardware description language.Meanwhile,the behavioral level verification and functional simulation experiments are conducted on EDA platform.The simulation results verify the effectiveness of our proposed model and provide a valid guidance for further circuit design of PLL in future.