Low-noise CMOS active transformer voltage-controlled oscillators

A. Tang, F. Yuan, E. Law

研究成果: Conference contribution同行評審

8 引文 斯高帕斯(Scopus)

摘要

This paper presents CMOS active transformers synthesized using MOS transistors only and their applications in VCOs. The characteristics of CMOS active transformers are analyzed, and the self and mutual components of the quality factor of transformers are investigated. Simulation results of LC, quadrature, and transformer VCOs with active inductors and active transformers show that active transformer VCOs exhibit a much lower level of phase noise as compared with corresponding LC and quadrature VCOs with active inductors. The phase noise of the designed 1.5GHz active transformer VCO in TSMC-0.18μm 1.8V CMOS technology is -109.4dBc/Hz at a 1 MHz offset the carrier and is comparable to that of VCO with spiral inductors. The power consumption of the oscillator is 30.5 mW with 83 μm2 active area.

原文English
主出版物標題2007 50th Midwest Symposium on Circuits and Systems, MWSCAS - Conference Proceedings
頁面1441-1444
頁數4
DOIs
出版狀態Published - 2007
對外發佈
事件2007 50th Midwest Symposium on Circuits and Systems, MWSCAS - Conference - Montreal, QC, Canada
持續時間: 5 8月 20078 8月 2007

出版系列

名字Midwest Symposium on Circuits and Systems
ISSN(列印)1548-3746

Conference

Conference2007 50th Midwest Symposium on Circuits and Systems, MWSCAS - Conference
國家/地區Canada
城市Montreal, QC
期間5/08/078/08/07

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