A low-voltage low-noise superharmonic quadrature oscillator

Author

Naseh, Sasan ; Dooghabadi, Malihe Zarre ; Deen, M. Jamal

Author_Institution

Eng. Dept., Ferdowsi Univ., Mashhad

fYear

2008

fDate

Aug. 31 2008-Sept. 3 2008

Firstpage

400

Lastpage

403

Abstract

A qualitative analysis of the large-signal operation of cross-connected LC oscillators at steady state is presented. It provides a physically understandable picture of the amplitude stabilization in these oscillators. Based on the insights gained from the mechanism of operation, a new low-noise, low-voltage (V_dd as low as 0.6 V) quadrature oscillator utilizing the superharmonic coupling is proposed and verified with simulation. The same coupling scheme can be extended to multiphase signal generation.

Keywords

harmonic oscillators (circuits); amplitude stabilization; cross-connected LC oscillators; low-voltage low-noise superharmonic quadrature oscillator; multiphase signal generation; signal operation qualitative analysis; steady state operation; superharmonic coupling; Circuit simulation; Coupling circuits; Energy consumption; Injection-locked oscillators; Phase noise; Radio frequency; Radiofrequency integrated circuits; Signal generators; Steady-state; Voltage-controlled oscillators; Low-noise; describing functions; low-voltage; multiphase oscillators; negative resistance oscillators; quadrature oscillators; superharmonic coupling;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on

Conference_Location

St. Julien´s

Print_ISBN

978-1-4244-2181-7

Electronic_ISBN

978-1-4244-2182-4

Type

conf

DOI

10.1109/ICECS.2008.4674875

Filename

4674875