Frequency-locked loop capable of adaptively adjusting dynamic and steady state performance and electronic device

The invention provides a frequency-locked loop capable of adaptively adjusting dynamic and steady state performance and an electronic device, and relates to the technical field of frequency-locked loops, and the frequency-locked loop comprises an orthogonal signal generation module, a frequency estimation module and a damping ratio adaptive module. The orthogonal signal generation module processes an input signal and generates an in-phase signal and a phase orthogonal signal for frequency estimation and damping ratio updating; the frequency estimation module updates the time-varying parameter estimation frequency of the orthogonal signal generation module; the damping ratio adaptive adjustment module updates the time-varying parameter damping ratio of the orthogonal signal generation module; a cyclic feedback mechanism is formed among the three modules, and through cyclic continuous updating, the frequency-locked loop can adaptively adjust the dynamic and steady state performance of the frequency-locked loop