Sinusoidal oscillators with lower gain requirements at higher frequencies based on an explicit tanh(x) nonlinearity |
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| Authors: | A S Elwakil S Ozoguz K N Salama |
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| Affiliation: | 1. Department of Electrical and Computer Engineering, University of Sharjah, P.O. Box 27272, Sharjah, Emirates;2. Faculty of Electrical‐Electronics Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey;3. Department of Electrical Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia |
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| Abstract: | Two novel sinusoidal oscillator structures with an explicit tanh(x) nonlinearity are proposed. The oscillators have the attractive feature: the higher the operating frequency, the lower the necessary gain required to start oscillations. A nonlinear model for the two oscillators is derived and verified numerically. Spice simulations using AMS BiCMOS 0.35µ model parameters and experimental results are shown. Copyright © 2009 John Wiley & Sons, Ltd. |
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| Keywords: | oscillators RC circuits LC circuits nonlinear circuit design nonlinear oscillators |
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