Titlebook: Quadrature RC−Oscillators; The van der Pol Appr João Carlos Ferreira de Almeida Casaleiro,Luís Aug Book 2019 Springer Nature Switzerland AG

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Two-Integrator Oscillator,hough being an .-oscillator (inductorless), it is a single-loop oscillator with inherent quadrature outputs. In comparison with .-oscillators, the phase noise of a two-integrator oscillator is worse. Yet, it has better noise performance than differential cross-coupled .-oscillators. This oscillator

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Introduction,d requires twice the nominal frequency of operation. This increases the power requirements, especially at high frequencies. In general, these open-loop methods have worse performance than the closed-loop ones, investigated in this book. Also, open-loop methods do not allow the compensation of the mismatches.

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Sinusoidal Oscillators,bed. The amplitude control techniques with the main focus on the amplitude limiting by nonlinearities are reviewed. Two implementations of a negative-resistance circuit are presented as examples. The frequency control is briefly discussed.

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Van der Pol Oscillator,litudes, one can find a very important performance parameter, the total harmonic distortion (THD). We describe here how the oscillator can be represented by the corresponding van der Pol model. We give the amplitude calculations, compare the results of calculations and simulations and discuss the results.

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Injection Locking,e consider both the series and parallel topologies of the VDPO, since we want to apply the results to the study of the coupled RC-oscillator (which is modeled by the series VDPO) and the two-integrator oscillator (modeled by the parallel VDPO).

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