A 1/f noise upconversion reduction technique applied to class-D and class-F oscillators

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Title: A 1/f noise upconversion reduction technique applied to class-D and class-F oscillators
Authors: Shahmohammadi, Mina
Babaie, Masoud
Staszewski, Robert Bogdan
Permanent link: http://hdl.handle.net/10197/7316
Date: 26-Feb-2015
Abstract: The 1/f (flicker) noise upconversion degrades the close-in spectrum of CMOS RF oscillators. The resulting 1/f3 phase noise (PN) can be an issue in PLLs with a loop bandwidth of <;1MHz, which practically implies all cellular phones. A previously published noise-filtering technique [1] and adding resistors in series with gm-device drains [2] have shown significant reduction of the 1/f3 oscillator PN corner. However, the former needs an additional tunable inductor and the latter degrades PN in the 20dB/dec region.
Funding Details: European Research Council
Type of material: Conference Publication
Publisher: IEEE
Copyright (published version): 2015 IEEE
Keywords: 1f noise;CMOS integrated circuits;Capacitors;Harmonic analysis;Inductors;Oscillators;Resonant frequency
DOI: 10.1109/ISSCC.2015.7063117
Language: en
Status of Item: Peer reviewed
Is part of: Proceedings of 2015 IEEE International Solid-State Circuits Conference (ISSCC) 2015
Conference Details: 2015 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, California, USA, February, 2015
Appears in Collections:Electrical and Electronic Engineering Research Collection

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