title: Phase noise measurements in dual-mode SC-cut crystal oscillators.
abstract: This paper describes the phase-noise characteristics and the analysis model of an SC-cut dual-mode oscillator. The C mode phase-noise sideband levels of -124 dBc at 10 Hz and -154 dBc at 10 kHz have been demonstrated using a dual-mode oscillator that simultaneously excited the C and B mode of a 10-MHz, third overtone, SC-cut crystal resonator. Based on Leeson's model, a phase-noise analysis model for dual-mode oscillators has been proposed also. Actual phase-noise levels of the C mode in dual-mode oscillation corresponded well to results calculated from the proposed model.
authors.affiliation: Graduate Sch. of Eng., Tokyo Metropolitan Univ.
authors.forename: Y
authors.initials: Y
authors.lastname: Watanabe
authors.forename: T
authors.initials: T
authors.lastname: Okabayashi
authors.forename: S
authors.initials: S
authors.lastname: Goka
authors.forename: H
authors.initials: H
authors.lastname: Sekimoto