Phase and Quadrature Pulsed Bias LC-CMOS VCO
Stefano Perticaroli, Fabrizio Palma, Adriano Carbone
DOI: 10.4236/cs.2011.21004   PDF   HTML     5,652 Downloads   9,281 Views   Citations


Pulsed bias is an attempt to improve the performance of oscillators in integrated circuits as a result of architectural innovation. Given the relatively low value of resonator quality factor achievable on-chip, for a specified bias voltage level, pulsed bias may result in a lower power consumption and in an improvement of the spectral purity of the oscillation. The main drawback of this approach is the need to introduce a certain time delay in order to properly position pulses with respect to oscillation waveform. Delay accumulation requires further energy dissipation and introduce additional jitter. In this paper we present a new architecture capable to avoid unnecessary delay, based on the idea to apply the pulsed bias approach to a quadrature oscillator. A ?rst circuit-level implementation of this concept is presented with simulation results.

Share and Cite:

S. Perticaroli, F. Palma and A. Carbone, "Phase and Quadrature Pulsed Bias LC-CMOS VCO," Circuits and Systems, Vol. 2 No. 1, 2011, pp. 18-24. doi: 10.4236/cs.2011.21004.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] F. X. Kaertner, “Analysis of White and f???Noise in Oscilla-tors,” Inernational Journal of Circuit Theory and Applications, Vol. 18, No. 5, 1990, pp. 485-519. doi:10. 1002/cta.4490180505
[2] A. Hajimiri and T. H. Lee, “A General Theory of Phase Noise in Electrical Oscillators,” IEEE Journal Solid-State Circuits, Vol. 33, No. 2, 1998, pp. 179-194. doi:10.1109 /4.658619
[3] A. Demir, “Floquet Theory and Non-linear Perturbation Analysis Foroscillators with Differen-tial-Algebraic Eq- uations,” International Journal of Circuit and Theory Applications, Vol. 28, No. 2, 2000, pp. 163-185. doi: 10.1002/(SICI)1097007X(200003/04)28:2<163::AID-CTA101>3.0.CO;2-K
[4] A. Carbone, A. Brambilla and F. Palma, “Using Floquet Eigenvectors in the Design of Electronic Oscil-lators,” Em- erging Technologies: Circuits and Systems for 4 G Mo- bile Wireless Communications, No. 6, 23-24 June 2005, pp. 100-103.
[5] A. Carbone and F. Palma, “Considering Orbital Devia- tions on the Evaluation of Power Density Spectrum of Oscill-Ators,” IEEE Transactions on Circuits and Systems-II: Express Briefs, Vol. 53, No. 6, 2006, pp. 438-442. doi: 10.1109/TCSII.2006.873527
[6] E. Hegazi, H. Sjoland and A. Abidi, “A Filtering Tech- nique to Lower LC Oscillator Phase Noise,” IEEE Journal of Solid State Circuits, Vol. 36, No. 12, 2001, pp. 1921- 1930. doi:10.1109/4.972142
[7] B. Soltanian and P. Kinget, “Tail Current Shaping to Improve Phase Noise in LC Voltage Controlled Os- cillators,” IEEE Journal of Solid State Circuits, Vol. 41, No. 8, 2006, pp. 1792-1802. doi:10.1109/JSSC.2006.8772 73
[8] L. B. Oliveira et al., “Analysis and Design of Quadrature Oscillators,” Springer, Berlin, 2008. doi:10.1007/978-14020- 8516-1.
[9] United States Patent No. US 2008/0218280 A1.
[10] A. Carbone and F. Palma, “Discontinuity Correction in Piece-Wise-Linear Models of Oscillators for Phase Noise Characterization,” International Journal of Circuit Theory and Applications, Vol. 35, No. 1, 2007, pp. 93-104. doi:10. 1002/cta.383
[11] M. Tiebout, “A Differentially Tuned Quadrature CMOS,” Proceedings of the 26th European Solid-State Circuits Conference, Montreux, 18-22 September 2006.
[12] J. H. Chang, et al., “A New 6 GHz Fully Integrated Low Power Low Phase Noise LC Quadrature VCO,” Pro- ceedings of 2003 Radio Frequency Integrated Circuits Symposium Philadelphia, Philadelphia, 8-10 June 2003, pp. 295-298.
[13] F. Yang et al., “A 4.8 GHz CMOS LC Balanced Oscillator with Symmetry Noise Filtering Technique,” International Conference on Solid-State Integrated Circuits Technology, Vol. 2, No. 7, 2004, pp. 1315-1320. doi:10.1109/ICSICT. 2004.1436795

Copyright © 2021 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.