A 1.8-GHz low-phase-noise spiral-LC CMOS VCO

Author

Craninckx, J. ; Steyaert, M.

Author_Institution

Katholieke Univ., Leuven, Belgium

fYear

1996

fDate

13-15 June 1996

Firstpage

30

Lastpage

31

Abstract

A completely integrated 1.8-GHz low-phase-noise voltage-controlled oscillator is presented. The design relies heavily on the integrated spiral inductors, which are constructed with only two metal layers and without etching. The effects of eddy currents and losses in the heavily doped substrate have been simulated and modeled with finite-element analyses. The achieved phase noise is as low as -116 dBc/Hz at 600 kHz offset, at a power consumption of only 6 mW. The VCO´s tuning range is 250 MHz.

Keywords

CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; circuit tuning; eddy currents; finite element analysis; inductors; integrated circuit noise; losses; phase noise; voltage-controlled oscillators; 1.8 GHz; 6 mW; FEM; UHF IC; eddy currents; finite-element analyses; heavily doped substrate; integrated spiral inductors; losses; low-phase-noise VCO; spiral-LC CMOS VCO; tuning range; Analytical models; Eddy currents; Energy consumption; Etching; Finite element methods; Inductors; Phase noise; Semiconductor device modeling; Spirals; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits, 1996. Digest of Technical Papers., 1996 Symposium on

Conference_Location

Honolulu, HI, USA

Print_ISBN

0-7803-3339-X

Type

conf

DOI

10.1109/VLSIC.1996.507704

Filename

507704