Development of dual band digitally controlled oscillator using Fibonacci sequence in 0.18 um CMOS process

K. Miyahara, D. Kanemoto, R. K. Pokharel, K. Yoshida, H. Kanaya

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a digitally controlled oscillator (DCO) in inductor-capacitor (LC) topology with dual -band and fine frequency tuning steps. Using special Fibonacci sequence method and additional capacitor in the capacitor bank, this DCO operates two differential frequency bands and achieves finer tuning range than that of a conventional binary sequence DCO. The proposed circuit is implemented in 0.18 um CMOS technology and tested. It has a high-band frequency of 4.01-4.54 GHz and low-band frequency of 3.41-3.74 GHz. The measured phase noise is -119.3 and -104.5 (dBc/Hz at 1MHz offset) at carrier frequency at 4.54 GHz and 3.41 GHz.

Original languageEnglish
Title of host publication2013 IEEE International Conference of IEEE Region 10, IEEE TENCON 2013 - Conference Proceedings
DOIs
Publication statusPublished - 2013
Event2013 IEEE International Conference of IEEE Region 10, IEEE TENCON 2013 - Xi'an, Shaanxi, China
Duration: Oct 22 2013Oct 25 2013

Publication series

NameIEEE Region 10 Annual International Conference, Proceedings/TENCON
ISSN (Print)2159-3442
ISSN (Electronic)2159-3450

Other

Other2013 IEEE International Conference of IEEE Region 10, IEEE TENCON 2013
CountryChina
CityXi'an, Shaanxi
Period10/22/1310/25/13

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering

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    Miyahara, K., Kanemoto, D., Pokharel, R. K., Yoshida, K., & Kanaya, H. (2013). Development of dual band digitally controlled oscillator using Fibonacci sequence in 0.18 um CMOS process. In 2013 IEEE International Conference of IEEE Region 10, IEEE TENCON 2013 - Conference Proceedings [6718451] (IEEE Region 10 Annual International Conference, Proceedings/TENCON). https://doi.org/10.1109/TENCON.2013.6718451