IEICE Electronics Express | |
Dedicated Q factor formulas stemming from oscillation frequency stability against source and load deviations | |
Takashi Ohira1  | |
[1] Toyohashi University of Technology | |
关键词: oscillator; stability; pushing; pulling; Q factor; | |
DOI : 10.1587/elex.9.616 | |
学科分类:电子、光学、磁材料 | |
来源: Denshi Jouhou Tsuushin Gakkai | |
【 摘 要 】
References(3)This paper derives two kinds of Q factor formulas for use in estimating frequency stability of sinusoidal oscillators. To cover various circuit topologies, we consider a general black-box model having DC input and RF output ports. Assuming a small deviation in DC supply voltage or RF load impedance, the frequency shift caused by such deviation is formulated by a perturbation technique. As a versatile criterion to indicate the tolerance of circuit itself, we introduce oscillator Q against each deviation. Since the theory is described in the linear impedance domain, it gives oscillator designers a clear vista on the stability of practical circuits.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201911300511040ZK.pdf | 157KB | download |