基于极点分析方法的晶体振荡器电路设计及仿真

Design and Simulation of A Crystal Oscillator Circuit Based on Pole Analysis Methods

提出了一种利用Hspice软件进行极点数据分析去设定振荡器电路参数值的方法.利用极点与系统稳定性的关系,结合振荡器的工作过程,只要选取合适的电路参数将整个系统的极点设置在一个恰当的位置,振荡器在最终瞬态仿真中的参数就比较理想.这种分析设计方法的好处是避免了反复进行电路的瞬态仿真,大大节省了电路设计的时间.利用极点分析的方法,也可以进行其他复杂电路的稳定性分析.

This paper presents a method of using pole analysis by HSPICE software to set the oscillator circuit parameter values.By using the relationship between the poles and system stability,combining with the oscillator work process,as long as the appropriate circuit parameters were selected for the circuit system to an appropriate pole position.The final transient simulation results for oscillator parameters will be ideal.This method has the advantage of avoiding the repeated transient simulation,and saving the transient simulation time.The pole analysis method can also be suitable for stability analysis of other complex circuit.