Luis B. Oliveira, Jorge R. Fernandes, Igor M. Filanovsky,'s Analysis And Design Of Quadrature Oscillators PDF

By Luis B. Oliveira, Jorge R. Fernandes, Igor M. Filanovsky, Chris J. M. Verhoeven, Manuel M. Silva

ISBN-10: 9048178975

ISBN-13: 9789048178971

The subsequent positive aspects of research and layout of Quadrature Oscillators make it varied from the prevailing literature on digital oscillators: specialize in quadrature oscillators with exact quadrature and coffee phase-noise, required by way of glossy conversation structures; a close comparative learn of quadrature LC and RC oscillators, together with cross-coupled LC quasi-sinusoidal oscillators, cross-coupled RC leisure oscillators, a quadrature RC oscillator-mixer, and two-integrator oscillators; a radical research of the impact of mismatches at the phase-error and the phase-noise; the realization that quadrature RC oscillators could be a sensible substitute to LC oscillators whilst region and value can be minimized (in cross-coupled RC oscillators either the quadrature-error and phase-noise are diminished, while in LC oscillators the coupling raises the phase-noise); use of a dependent layout method, within which a expertise self sufficient examine, with excellent blocks, is played in the beginning, after which the circuit point layout is addressed; and inclusion of many experimental effects, received from varied built-in circuit prototypes, within the GHz variety.

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Additional resources for Analysis And Design Of Quadrature Oscillators

Example text

Phase-Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Phase-noise in a Single Relaxation Oscillator . . . . . . . . . . . . . . 2 Phase-noise in Quadrature Relaxation Oscillators . . . . . . . . . . . . . Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Introduction This chapter is dedicated to the study of quadrature relaxation oscillators, which consist of two cross-coupled RC relaxation oscillators [9].

Relaxation Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 High Level Model . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Circuit Implementation . . . . . . . . . . . . . . . . . . . . . . . Quadrature Relaxation Oscillator . . . . . . . . . . . . . . . . . . . . . . . 1 High Level Model . . . . . . . . . . . . . . . . .

44) It is interesting to analyze how the relaxation oscillators adjust the amplitude of the capacitor voltages to preserve the quadrature. 44) that the amplitude of νC1 decreases. As a consequence the first relaxation oscillator becomes faster (the oscillation frequency increases) and is able to follow the second relaxation oscillator. A similar analysis can be done for the variation of the charge and discharge currents. 3 Quadrature Relaxation Oscillator 53 the oscillation amplitude to follow the second relaxation oscillator.

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Analysis And Design Of Quadrature Oscillators by Luis B. Oliveira, Jorge R. Fernandes, Igor M. Filanovsky, Chris J. M. Verhoeven, Manuel M. Silva


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