Evaluating pulling effects in oscillators due to small-signal injection
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Simulation of mutually coupled oscillators using nonlinear phase macromodels
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
IEEE Transactions on Circuits and Systems Part I: Regular Papers
Synchronization analysis of two weakly coupled oscillators through a PPV macromodel
IEEE Transactions on Circuits and Systems Part I: Regular Papers
Analysis and design of injection-locked frequency dividers by means of a phase-domain macromodel
IEEE Transactions on Circuits and Systems Part I: Regular Papers
Time-domain analysis of phase-noise and jitter in oscillators due to white and colored noise sources
International Journal of Circuit Theory and Applications
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In this paper, two relevant computational aspects related to the design of nonlinear oscillators are considered: sensitivity to electrical parameter variation and sensitivity to small- amplitude injected signals. First, the analysis of the perturbation induced by parameter fluctuation is theoretically investigated, and a set of formal equations is deduced that allows us to correctly decompose amplitude and period variations. Second, the analysis of the perturbation induced by a generic weak signal is considered. This analysis is based on a well-consolidated approach that employs the Floquet eigenvector v1 (t) to project perturbation into the phase domain. It is shown that the same system of equations that formalizes the parameter-sensitivity problem can be exploited to calculate the v1 (t) projection vector. An efficient and reliable numerical implementation of a formal perturbation analysis is then proposed that allows the oscillator designer to evaluate both parameter sensitivity and signal-injection sensitivity in a homogeneous frame.