A noise-shifting differential Colpitts VCO
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- 16 December 2002
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 37 (12) , 1728-1736
- https://doi.org/10.1109/jssc.2002.804354
Abstract
A novel noise-shifting differential Colpitts VCO is presented. It uses current switching to lower phase noise by cyclostationary noise alignment and improve the start-up condition. A design strategy is also devised to enhance the phase noise performance of quadrature coupled oscillators. Two integrated VCOs are presented as design examples.Keywords
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