2015/04/23 by Marcello Carlà, Carlà, Marcello
Engineering · Physics and Astronomy · #Advancements in PLL and VCO Technologies #FOS: Physical sciences #General Physics (physics.gen-ph) #Mechanical and Optical Resonators #Radio Frequency Integrated Circuit Design #physics.gen-ph
paper · pdf · doi:10.48550/arxiv.1504.08228
arxiv created 2015/04/23 · openalex publication_date 2015/04/23 · arxiv updated 2015/05/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The mechanism at the base of phase noise generation in electrical oscillators is reexamined from first principles. The well known Lorentzian spectral power distribution is obtained, together with a clearcut expression for the line-width parameter. The mechanism of suppression of the amplitude fluctuations and its effects are discussed and the true role of the figure of merit Q0 of the resonator is restated. The up conversion of low frequency components from a non-white noise source is also considered. A number of simple numerical experiments is presented to illustrate and clarify the mathematical results.