On the phase-noise and phase-error performances of multiphase LC CMOS VCOs
(2004) In IEEE Journal of Solid-State Circuits 39(11). p.1883-1893- Abstract
- This paper presents an analysis of phase noise in multiphase LC oscillators, and measurement results for several CMOS quadrature-voltage-controlled-oscillators (QVCOs) working in the 2-GHz frequency range. The phase noise data for a so-called BS-QVCO (-140 dBc/Hz or less at 3 MHz frequency offset from the carrier, for a power consumption of 20.8 mW and a figure-of-merit of 184 dBc/Hz) show that phase noise performances are close to the previously derived limits. A systematic cause of departure from ideal quadrature between QVCO signals is also analyzed and measured experimentally, and a compact LC-tank layout that removes this source of phase error is proposed. A TS-QVCO designed with this technique shows a phase-noise figure-of-merit... (More)
- This paper presents an analysis of phase noise in multiphase LC oscillators, and measurement results for several CMOS quadrature-voltage-controlled-oscillators (QVCOs) working in the 2-GHz frequency range. The phase noise data for a so-called BS-QVCO (-140 dBc/Hz or less at 3 MHz frequency offset from the carrier, for a power consumption of 20.8 mW and a figure-of-merit of 184 dBc/Hz) show that phase noise performances are close to the previously derived limits. A systematic cause of departure from ideal quadrature between QVCO signals is also analyzed and measured experimentally, and a compact LC-tank layout that removes this source of phase error is proposed. A TS-QVCO designed with this technique shows a phase-noise figure-of-merit improvement of 4 dB, compared to a previous implementation. The measured equivalent phase error for all QVCOs is between 0.6/spl deg/ and 1/spl deg/. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1049722
- author
- Andreani, Pietro LU and Wang, Xiaoyan
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- IEEE Journal of Solid-State Circuits
- volume
- 39
- issue
- 11
- pages
- 1883 - 1893
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:8344225290
- ISSN
- 0018-9200
- DOI
- 10.1109/JSSC.2004.835828
- language
- English
- LU publication?
- no
- id
- 665cf6c5-0609-4f48-a907-9fae98e3d1aa (old id 1049722)
- date added to LUP
- 2016-04-01 16:32:56
- date last changed
- 2022-04-15 05:17:15
@article{665cf6c5-0609-4f48-a907-9fae98e3d1aa, abstract = {{This paper presents an analysis of phase noise in multiphase LC oscillators, and measurement results for several CMOS quadrature-voltage-controlled-oscillators (QVCOs) working in the 2-GHz frequency range. The phase noise data for a so-called BS-QVCO (-140 dBc/Hz or less at 3 MHz frequency offset from the carrier, for a power consumption of 20.8 mW and a figure-of-merit of 184 dBc/Hz) show that phase noise performances are close to the previously derived limits. A systematic cause of departure from ideal quadrature between QVCO signals is also analyzed and measured experimentally, and a compact LC-tank layout that removes this source of phase error is proposed. A TS-QVCO designed with this technique shows a phase-noise figure-of-merit improvement of 4 dB, compared to a previous implementation. The measured equivalent phase error for all QVCOs is between 0.6/spl deg/ and 1/spl deg/.}}, author = {{Andreani, Pietro and Wang, Xiaoyan}}, issn = {{0018-9200}}, language = {{eng}}, number = {{11}}, pages = {{1883--1893}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Journal of Solid-State Circuits}}, title = {{On the phase-noise and phase-error performances of multiphase LC CMOS VCOs}}, url = {{http://dx.doi.org/10.1109/JSSC.2004.835828}}, doi = {{10.1109/JSSC.2004.835828}}, volume = {{39}}, year = {{2004}}, }