Frequency multipliers for crystal oscillators is coming at 07/25/2018 - 10:30pm
KEC 1005 Wed, 07/25/2018 - 10:30pm Pavan Hanumolu Prof., Electrical and Computer Engineering, University of Illinois Urbana-Champaign Abstract: Low-noise high-frequency reference clocks are needed in all high-performance clock multipliers. Such reference clocks are typically provided by crystal oscillators (XOs). While higher frequency reference clocks greatly help in improving the noise performance of clock multipliers, XO output frequencies are typically limited to few 10s of MHz. To alleviate this limitation, I’ll present techniques to double and quadruple the XO output frequency with minimal noise and power penalty. I’ll describe calibration schemes that can overcome circuit imperfections and improve immunity to process, voltage, and temperature variations. To validate the presented ideas, I will show experimental results obtained from two prototype integrated circuits. Bio: Read more: http://eecs.oregonstate.edu/colloquium/frequency-multipliers-crystal-osc... [1] [1] http://eecs.oregonstate.edu/colloquium/frequency-multipliers-crystal-oscillators
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