A 0.5-V 3.6/5.2 GHz CMOS multi-band LC VCO for ultra low-voltage wireless applications

Author

Catli, Burak ; Hella, Mona M.

Author_Institution

Syst. Eng. Dept., Rensselaer Polytech. Inst., Troy, NY

fYear

2008

fDate

18-21 May 2008

Firstpage

996

Lastpage

999

Abstract

In this paper, an ultra low-voltage multiband CMOS VCO based on tunable band-limited negative resistance approach is presented. The proposed technique eliminates the need for switching elements that are connected directly to the tank and limit the tuning range and phase noise performance. The oscillator draws a current of 6 mA from 0.5 V supply with a phase noise of -117 dBc/Hz at 1 MHz offset from 3.6 GHz carrier. For the high frequency band, it draws 4 mA from the same supply with a phase noise of -117 dBc/Hz at 1 MHz offset from 5.2 GHz.

Keywords

CMOS integrated circuits; circuit tuning; integrated circuit design; integrated circuit noise; low-power electronics; negative resistance circuits; phase noise; voltage-controlled oscillators; CMOS multiband LC VCO; current 4 mA; current 6 mA; frequency 3.6 GHz; frequency 5.2 GHz; phase noise; tunable band-limited negative resistance method; ultralow-voltage wireless application; voltage 0.5 V; voltage controlled oscillator; Phase noise; Radio frequency; Radiofrequency integrated circuits; Resonance; Resonant frequency; Signal generators; Signal processing; Switches; Tuning; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on

Conference_Location

Seattle, WA

Print_ISBN

978-1-4244-1683-7

Electronic_ISBN

978-1-4244-1684-4

Type

conf

DOI

10.1109/ISCAS.2008.4541588

Filename

4541588