Realization of Electronically Tunable Current- Mode Multiphase Sinusoidal Oscillators Using CFTAs
An implementation of current-mode multiphase sinusoidal oscillators is presented. Using CFTA-based lossy integrators, odd and odd/even phase systems can be realized with following advantages. The condition of oscillation and frequency of oscillation can be orthogonally tuned. The high output impedances facilitate easy driving an external load without additional current buffers. The proposed MSOs provide odd or even phase signals that are equally spaced in phase and equal amplitude. The circuit requires one CFTA, one resistor and one grounded capacitor per phase without additional current amplifier. The results of PSPICE simulations using CMOS CFTA are included to verify theory.
[1] J. Dunlop, D. G. Smith, Telecommunications Engineering, 3rd ed. CRC
Press, 1994.
[2] W. Tomasi, Electronic Communications System, New Jersey: Prentice-
Hall Inc., 1998
[3] Anritsu Emea Limited: MG3700A vector signal generator datasheet,
Available at: http://www.eu.anritsu.com/files/
MEG3700A_El17301.pdf.
[4] G. Eirea, S. R. "Sanders, Phase current unbalance estimation in
multiphase buck converters," IEEE Transactions on Power Electronics,
vol. 23, pp. 137-143, 2008.
[5] C. Toumazou, F. J. Lidgey, D. G. Haigh, Analogue IC design: the
current-mode approach. Peter Peregrinus: London, 1990.
[6] D. Biolek, R. Senani, V. Biolkova, Z. Kolka "Active elements for
analog signal processing: classification, review, and new proposals,"
Radioengineering, vol. 17, no. 4, pp. 15-32, 2008.
[7] N. Herencsar, J. Koton, K. Vrba and J. Misurec, "A novel current-mode
SIMO type universal filter using CFTAs," Contemporary Engineering,
Sciences, vol.2, no.2, pp.59-66, 2009.
[8] M. T. Abuelma'Atti "Current-mode multiphase oscillator using current
followers," Microelectronics Journal, vol. 25, pp. 457-461, 1994.
[9] M. T.Abuelma'atti, M. A. Al-Qahtani, "A new current-controlled
multiphase sinusoidal oscillator using translinear current conveyor,"
IEEE Transactions on. Circuits and Systems, vol. 45, pp. 881-885,
1998.
[10] C. Loescharataramdee, W. Kiranon, W. Sangpisit, W. Yadum,
"Multiphase sinusoidal oscillators using translinear current conveyors
and only grounded passive components," Proceeding of Southeastern
Symposium on System Theory, pp. 59-63, 2004.
[11] W. Tangsrirat, W. Tanjaroen "Current-mode multiphase sinusoidal
oscillator using current differencing transconductance amplifiers,"
Circuits, Systems and Signal Processing, vol. 27, pp. 81-93, 2008.
[12] W. Tangsrirat, W. Tanjaroen, T. Pukkalanun,. "Current-mode
multiphase sinusoidal oscillator using CDTA-based allpass sections,"
International Journal of Electronics and Communications (AEU), vol.
63, pp. 616-622, 2009.
[13] W. Jaikla, M. Siripruchyanun, D. Biolek D., V. Biolkova, "High-outputimpedance
current-mode multiphase sinusoidal oscillator employing
current differencing transconductance amplifier-based allpass filters,"
International Journal of Electronics, vol. 97, pp. 811-826, 2010.
[14] M. Kumngern "Electronically tunable current-mode multiphase
oscillator using current-controlled CCTAs," 2010 IEEE International
Conference of Electron Devices and Solid-State Circuits (EDSSC),
2010.
[15] P. Uttaphut, W. Mekhum, W. Jaikla, "Current-mode multiphase
sinusoidal oscillator using CCCCTAs and grounded elements," 9th
International NEWCAS conference, pp. 345-349, 2011.
[16] D. S. Wu, S. I. Liu, Y. S. Hwang, Y. P. Wu "Multiphase sinusoidal
oscillator using the CFOA pole," IET Circuits, Devices & Systems, vol.
142, pp. 37-40, 1995.
[17] C. Psychalinos, G. Souliotis "A log-domain multiphase sinusoidal
oscillator," International Journal of Electronics and Communications
(AEU), vol. 62, pp. 622-626, 2008.
[18] P. Prommee, K. Angkeaw, M. Somdunyakanok, and K. Dejhan,
"CMOS-based near zero-offset multiple inputs max-min circuits and its
applications," Analog Integr. Circuits Signal Process. Vol. 61, pp. 93-
105, 2009.
[1] J. Dunlop, D. G. Smith, Telecommunications Engineering, 3rd ed. CRC
Press, 1994.
[2] W. Tomasi, Electronic Communications System, New Jersey: Prentice-
Hall Inc., 1998
[3] Anritsu Emea Limited: MG3700A vector signal generator datasheet,
Available at: http://www.eu.anritsu.com/files/
MEG3700A_El17301.pdf.
[4] G. Eirea, S. R. "Sanders, Phase current unbalance estimation in
multiphase buck converters," IEEE Transactions on Power Electronics,
vol. 23, pp. 137-143, 2008.
[5] C. Toumazou, F. J. Lidgey, D. G. Haigh, Analogue IC design: the
current-mode approach. Peter Peregrinus: London, 1990.
[6] D. Biolek, R. Senani, V. Biolkova, Z. Kolka "Active elements for
analog signal processing: classification, review, and new proposals,"
Radioengineering, vol. 17, no. 4, pp. 15-32, 2008.
[7] N. Herencsar, J. Koton, K. Vrba and J. Misurec, "A novel current-mode
SIMO type universal filter using CFTAs," Contemporary Engineering,
Sciences, vol.2, no.2, pp.59-66, 2009.
[8] M. T. Abuelma'Atti "Current-mode multiphase oscillator using current
followers," Microelectronics Journal, vol. 25, pp. 457-461, 1994.
[9] M. T.Abuelma'atti, M. A. Al-Qahtani, "A new current-controlled
multiphase sinusoidal oscillator using translinear current conveyor,"
IEEE Transactions on. Circuits and Systems, vol. 45, pp. 881-885,
1998.
[10] C. Loescharataramdee, W. Kiranon, W. Sangpisit, W. Yadum,
"Multiphase sinusoidal oscillators using translinear current conveyors
and only grounded passive components," Proceeding of Southeastern
Symposium on System Theory, pp. 59-63, 2004.
[11] W. Tangsrirat, W. Tanjaroen "Current-mode multiphase sinusoidal
oscillator using current differencing transconductance amplifiers,"
Circuits, Systems and Signal Processing, vol. 27, pp. 81-93, 2008.
[12] W. Tangsrirat, W. Tanjaroen, T. Pukkalanun,. "Current-mode
multiphase sinusoidal oscillator using CDTA-based allpass sections,"
International Journal of Electronics and Communications (AEU), vol.
63, pp. 616-622, 2009.
[13] W. Jaikla, M. Siripruchyanun, D. Biolek D., V. Biolkova, "High-outputimpedance
current-mode multiphase sinusoidal oscillator employing
current differencing transconductance amplifier-based allpass filters,"
International Journal of Electronics, vol. 97, pp. 811-826, 2010.
[14] M. Kumngern "Electronically tunable current-mode multiphase
oscillator using current-controlled CCTAs," 2010 IEEE International
Conference of Electron Devices and Solid-State Circuits (EDSSC),
2010.
[15] P. Uttaphut, W. Mekhum, W. Jaikla, "Current-mode multiphase
sinusoidal oscillator using CCCCTAs and grounded elements," 9th
International NEWCAS conference, pp. 345-349, 2011.
[16] D. S. Wu, S. I. Liu, Y. S. Hwang, Y. P. Wu "Multiphase sinusoidal
oscillator using the CFOA pole," IET Circuits, Devices & Systems, vol.
142, pp. 37-40, 1995.
[17] C. Psychalinos, G. Souliotis "A log-domain multiphase sinusoidal
oscillator," International Journal of Electronics and Communications
(AEU), vol. 62, pp. 622-626, 2008.
[18] P. Prommee, K. Angkeaw, M. Somdunyakanok, and K. Dejhan,
"CMOS-based near zero-offset multiple inputs max-min circuits and its
applications," Analog Integr. Circuits Signal Process. Vol. 61, pp. 93-
105, 2009.
@article{"International Journal of Electrical, Electronic and Communication Sciences:55126", author = "Prungsak Uttaphut", title = "Realization of Electronically Tunable Current- Mode Multiphase Sinusoidal Oscillators Using CFTAs", abstract = "An implementation of current-mode multiphase sinusoidal oscillators is presented. Using CFTA-based lossy integrators, odd and odd/even phase systems can be realized with following advantages. The condition of oscillation and frequency of oscillation can be orthogonally tuned. The high output impedances facilitate easy driving an external load without additional current buffers. The proposed MSOs provide odd or even phase signals that are equally spaced in phase and equal amplitude. The circuit requires one CFTA, one resistor and one grounded capacitor per phase without additional current amplifier. The results of PSPICE simulations using CMOS CFTA are included to verify theory.
", keywords = "multiphase sinusoidal oscillator, current-mode,
CFTA, lossy integrator", volume = "6", number = "9", pages = "954-4", }
