Impact of - optimization parameters and phase margin on closed loop gain of phase-locked loop
نویسندگان
چکیده
The γ-optimization parameter is one of the key parameters for designing loop filters of phase-locked loop and optimal choice of γ depends on phase margin of the system. Here, we propose to study the impact of γ-optimization parameter and phase margin on closed loop gain of phase-locked loop for frequency synthesizer. A model has been developed and simulated, considering two different filter sections in the loop, namely: (i) the active laglead filter and (ii) the filter with standard feedback approach to study the impact. The simulation of the model is performed on MATLAB platform. In this paper, we will discuss in details about the derivation of the model and study of its stability in terms of γ-optimization parameter and phase margin considering both filter configuration in the loop.
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