A novel 14-bit digitally controlled ring oscillator

P. Nugroho; R. K. Pokharel; A. Anand; H. Kanaya; K. Yoshida

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https://doi.org/10.1109/jec-ec...

Article . 2012 . Peer-reviewed

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https://dx.doi.org/10.1109/jec...

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A novel 14-bit digitally controlled ring oscillator

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Mar 2012Publisher:IEEEJournal:2012 Japan-Egypt Conference on Electronics, Communications and Computers

Authors: P. Nugroho; R. K. Pokharel; A. Anand; H. Kanaya; K. Yoshida;

doi: 10.1109/jec-ecc.2012.6186949

A novel 14-bit digitally controlled ring oscillator

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Abstract

A novel 14-bit digitally controlled ring oscillator is designed in 0.18 µm CMOS technology. Sub-feedback technique is used to increase the output frequency that produces stable oscillation with even number of stages. Frequency can be tuned from 674 MHz to 4 GHz. Phase noise at 4 GHz carrier frequency and 4 MHz offset is −119.4dBc/Hz. Figure of Merit (FoM) calculated is 156 dBc/Hz.

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Kyushu University
Japan

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