Referenced Items are not available for this document.
Multipath ring oscillators have been used to generate multiple clock phases and higher oscillation frequencies. This paper presents a modified linear analysis to find an accurate expression for the oscillation frequency and phase noise. The analysis shows that for the same power consumption, the number of phases can be increased without decreasing the oscillation frequency or degrading the phase noise. The expression further indicates factors that determine the oscillation frequency and shows that in principle, the maximum oscillation frequency can exceed that of a three-stage ring oscillator. The analytical results can be used to find the optimum coupling structure of the oscillator to achieve a desired operating frequency and phase noise performance.
Published in:
Circuits and Systems I: Regular Papers, IEEE Transactions on
(Volume:58
,
Issue:
10
)
Date of Publication: Oct. 2011
- Page(s):
- 2332 - 2345
- ISSN :
- 1549-8328
- INSPEC Accession Number:
- 12261857
- Digital Object Identifier :
- 10.1109/TCSI.2011.2142810
- Product Type:
- Journals & Magazines
- Date of Publication :
- 16 May 2011
- Date of Current Version :
- 26 September 2011
- Issue Date :
- Oct. 2011
- Sponsored by :
- IEEE Circuits and Systems Society
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