A differential-ring-oscillator with up to 35 dBc/Hz phase noise improving amplitude feedback loop for ultra low power systems

Peter Toth, Hiroki Ishikuro

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This work presents a novel idea to dynamically control a differential ring oscillators biasing in order to improve the phase noise performance in the ultra low power domain. This proposed feedback system can be flexibly applied on any type of fully-differential ring oscillator with a tail current source. The following paper covers theoretical and simulative considerations to prove the feasibility of this idea. Finally measurements of a 180 nm standard CMOS integrated prototype system depict the implementability of this idea. A phase noise improvement of up to 35 dBc/Hz can be observed with an active control loop. Moreover, the tuning range of the implemented ring oscillator is extended by 434% in contrast to fixed bias operation. These values are measured at a minimum oscillation power consumption of 55 pW/Hz.

本文言語English
ホスト出版物のタイトル2019 26th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2019
出版社Institute of Electrical and Electronics Engineers Inc.
ページ350-353
ページ数4
ISBN(電子版)9781728109961
DOI
出版ステータスPublished - 2019 11月
イベント26th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2019 - Genoa, Italy
継続期間: 2019 11月 272019 11月 29

出版物シリーズ

名前2019 26th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2019

Conference

Conference26th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2019
国/地域Italy
CityGenoa
Period19/11/2719/11/29

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 制御と最適化
  • コンピュータ ネットワークおよび通信
  • ハードウェアとアーキテクチャ

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