Analysis And Design Of Quadrature Oscillators

Luis B. Oliveira, Jorge R. Fernandes, Igor M. Filanovsky, Chris J. M. Verhoeven, Manuel M. Silva9789048178971, 9048178975

The following features of Analysis and Design of Quadrature Oscillators make it different from the existing literature on electronic oscillators: focus on quadrature oscillators with accurate quadrature and low phase-noise, required by modern communication systems; a detailed comparative study of quadrature LC and RC oscillators, including cross-coupled LC quasi-sinusoidal oscillators, cross-coupled RC relaxation oscillators, a quadrature RC oscillator-mixer, and two-integrator oscillators; a thorough investigation of the effect of mismatches on the phase-error and the phase-noise; the conclusion that quadrature RC oscillators can be a practical alternative to LC oscillators when area and cost should be minimized (in cross-coupled RC oscillators both the quadrature-error and phase-noise are reduced, whereas in LC oscillators the coupling increases the phase-noise); use of a structured design approach, in which a technology independent study, with ideal blocks, is performed initially, and then the circuit level design is addressed; and inclusion of many experimental results, obtained from different integrated circuit prototypes, in the GHz range.