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Analysis of Spread-Spectrum Clocking Modulations Under Synchronization Timing Constraint

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Applications in Electronics Pervading Industry, Environment and Society

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 351))

Abstract

Spread spectrum clocking slowly sweeps clock frequency of a digital system to reduce the Electromagnetic Interference (EMI). In a digital system-on-chip there can be subsystems where clock spreading is not allowed. This paper analyzes the performances achievable by spread spectrum clocking when a constraint is imposed to easily synchronize clock modulated and unmodulated subsystems. It is shown that the best modulation gain (7.7 dB) is achieved by using optimized discontinuous modulation.

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References

  1. Hardin, K.B., Fessler, J.T., Bush, D.R.: Spread spectrum clock generation for the reduction of radiated emissions. In: Proceedings of the IEEE International Symposium on Electromagnetic Compatibility, pp. 227–231 (1994)

    Google Scholar 

  2. Damphousse, S., Ouici, K., Rizki, A., Mallinson, M.: All-digital Spread Spectrum Clock Generator for EMI reduction. IEEE J. Solid-State Cir. 42(1), 145–150 (2007)

    Article  Google Scholar 

  3. Ebuchi, T., Komatsu, Y., Okamoto, T., Arima, Y., Yamada, Y., Sogawa, K., Okamoto, K., Morie, T., Hirata, T., Dosho, S., Yoshikawa, T.: A 125–1250 MHz process-independent adaptive bandwidth spread spectrum clock generator with digital controlled self-calibration. IEEE J. Solid-State Circ. 44(3), 763–774 (2009)

    Article  Google Scholar 

  4. De Caro, D.: Glitch-free NAND-based digitally controlled delay-lines. IEEE Trans. Very Large Scale Integr. Syst. 21(1), 55–66 (2013)

    Article  Google Scholar 

  5. De Caro, D., Romani, C.A., Petra, N., Strollo, A.G.M., Parrella, C.: A 1.27 GHz, all-digital spread spectrum clock generator/synthesizer in 65 nm CMOS. IEEE J. Solid-State Circ. 45(5), 1048–1060 (2010)

    Article  Google Scholar 

  6. Hwang, S., Song, M., Kwak, Y.H., Jung, I., Kim, C.: A 3.5 GHz spread spectrum clock generator with a memoryless Newton-Raphson modulation profile. IEEE J. Solid-State Circ. 47(5), 1199–1208 (2012)

    Article  Google Scholar 

  7. Lin, S.Y., Liu, S.I.: A 1.5 GHz all-digital spread-spectrum clock generator. IEEE J. Solid-State Circ. 44(11), 3111–3119 (2009)

    Article  Google Scholar 

  8. Pareschi, F., Setti, G., Rovatti, R.: A 3-GHz Serial ATA spread spectrum clock generator employing a chaotic PAM modulation. IEEE Trans. Circ. Syst. I Regul. Pap. 57(10), 2577–2587 (2010)

    Article  MathSciNet  Google Scholar 

  9. Lin, F., Chen, D.Y.: Reduction of power supply EMI emission by switching frequency modulation. IEEE Trans. Power Electron. 9(1), 132–137 (1994)

    Article  Google Scholar 

  10. Tse, K.K., Chung, H.S.-H., Huo, S.Y., So, H.C.: Analysis and spectral characteristics of a spread spectrum technique for conducted EMI suppression. IEEE Trans. Power Electron. 15(2), 399–410 (2000)

    Article  Google Scholar 

  11. Balcells, J., Santolaria, A., Orlandi, A., Gonzalez, D., Gago, J.: EMI reduction in switched power converters using frequency modulation techniques. IEEE Trans. Electromagn. Compat. 47(3), 569–576 (2005)

    Article  Google Scholar 

  12. Tse, K.K., Ng, R.W.-M., Chung, H.S.-H., Hui S.Y.R.: An evaluation of the spectral characteristics of switching converters with chaotic carrier frequency modulation. In: IEEE Trans. Industr. Electron. 50(l), 171–182 (2003)

    Google Scholar 

  13. FCC 47 CFR Part 15, Radio frequency devices (2008)

    Google Scholar 

  14. CISPR 22: Information technology equipment—radio disturbance characteristics—limits and methods of measurement (2003–2004)

    Google Scholar 

  15. ANSI C63.4: American national standard for methods of measurement of radio noise emissions from low voltage electrical and electronic equipment in the range of 9 kHz to 40 GHz (2003)

    Google Scholar 

  16. Hardin, K., Oglesbee, R.A., Fisher, F.: Investigation into the interference potential of spread-spectrum clock generation to broadband digital communications. IEEE Trans Electromagn. Compat. 45(1), 10–21 (2003)

    Article  Google Scholar 

  17. Matsumoto, Y., Fujii, K., Sugiura, A.: An analytical method for determining the optimal modulating waveform for dithered clock generation. IEEE Trans. Electromagn. Compat. 47(3), 577–584 (2005)

    Article  Google Scholar 

  18. Matsumoto, Y., Fujii, K., Sugiura, A.: Estimating the amplitude reduction of clock harmonics due to frequency modulation. IEEE Trans. Electromagn. Compat. 48(4), 734–741 (2006)

    Article  Google Scholar 

  19. De Caro, D.: Optimal discontinuous frequency modulation for spread-spectrum clocking. IEEE Trans. Electromagn. Compat. 55(5), 891–900 (2013)

    Article  Google Scholar 

  20. Zhou, J., Dehaene, W.: A synchronization-free spread spectrum clock generation technique for automotive applications. IEEE Trans. Electromagn. Compat. 53(1), 169–177 (2011)

    Article  Google Scholar 

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Correspondence to Davide De Caro .

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De Caro, D., De Martino, M., Petra, N., Strollo, A.G. (2016). Analysis of Spread-Spectrum Clocking Modulations Under Synchronization Timing Constraint. In: De Gloria, A. (eds) Applications in Electronics Pervading Industry, Environment and Society. Lecture Notes in Electrical Engineering, vol 351. Springer, Cham. https://doi.org/10.1007/978-3-319-20227-3_20

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  • DOI: https://doi.org/10.1007/978-3-319-20227-3_20

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-20226-6

  • Online ISBN: 978-3-319-20227-3

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