An intuitive yet sufficiently accurate formulation of the phase noise of various commonly used oscillators, including most types of class-B (standard, AC-coupled and with tail filter) and class-C, is derived and used to compare their fundamental limitations. A noise factor that represents the difference between the maximum achievable Figure of Merit and the actual one is derived for all topologies considered. Measurements on a dedicated chip prototype that integrates two high performance topologies allow to verify, in an unbiased way, the accuracy of the predictions. A very good agreement between the model and both simulation and measurement is obtained.

An Intuitive Analysis of Phase Noise Fundamental Limits Suitable for Benchmarking LC Oscillators

GARAMPAZZI, MARCO;Antonio Liscidini;MANSTRETTA, DANILO;CASTELLO, RINALDO
2014-01-01

Abstract

An intuitive yet sufficiently accurate formulation of the phase noise of various commonly used oscillators, including most types of class-B (standard, AC-coupled and with tail filter) and class-C, is derived and used to compare their fundamental limitations. A noise factor that represents the difference between the maximum achievable Figure of Merit and the actual one is derived for all topologies considered. Measurements on a dedicated chip prototype that integrates two high performance topologies allow to verify, in an unbiased way, the accuracy of the predictions. A very good agreement between the model and both simulation and measurement is obtained.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11571/822663
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