Nonlinear Behavior Modeling of Charge-Pump Based Frequency Synthesizers
نویسنده
چکیده
A nonlinear behavior model of a charge-pump based frequency synthesizer is implemented and verified against a transistor level implementation in a mixed circuit simulator. The presented behavior model is shown to be drastically faster while still giving an accurate prediction of the acquisition process. The model reliance is assured by identifying and implementing the nonlinear characteristics of each sub-circuit. The challenges of ensuring proper frequency generation even in the presence of process and temperature variations is circumvented by the presented model’s reduction in computational cost. Key–Words: Frequency synthesizer, Behavior model, Nonlinear, Control, Simulation, Computational cost
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