A continuous-time /spl Sigma//spl Delta/ Modulator with reduced sensitivity to clock jitter through SCR feedback

作者: M. Ortmanns , F. Gerfers , Y. Manoli

DOI: 10.1109/TCSI.2005.846227

关键词: Delta-sigma modulationDelta modulatorResistorThyristorJitterElectronic engineeringControl theorySensitivity (control systems)Pulse-width modulationPhysicsSigma

摘要: This paper presents a means to overcome the high sensitivity of continuous-time sigma-delta (/spl Sigma//spl Delta/) modulators clock jitter by using modified switched-capacitor structure with resistive element in feedback digital-analog converter (DAC). The reduced is both simulated and proven measured results from two implemented third-order modulators. Additionally, nonideal behavior analyzed analytically simulations.

参考文章(19)
Steven R. Norsworthy, Richard Schreier, Gabor C. Temes, Delta-Sigma Data Converters telecommunications and signal processing. pp. 317- 339 ,(1996) , 10.1109/9780470544358
F. Gerfers, M. Ortmanns, Y. Manoli, A 1.5-V 12-bit power-efficient continuous-time third-order /spl Sigma//spl Delta/ modulator IEEE Journal of Solid-state Circuits. ,vol. 38, pp. 1343- 1352 ,(2003) , 10.1109/JSSC.2003.814432
A. Marques, V. Peluso, M.S. Steyaert, W.M. Sansen, Optimal parameters for /spl Delta//spl Sigma/ modulator topologies IEEE Transactions on Circuits and Systems Ii: Analog and Digital Signal Processing. ,vol. 45, pp. 1232- 1241 ,(1998) , 10.1109/82.718590
E.J. vanderZwan, E.C. Dijkmans, A 0.2 mW CMOS /spl Sigma//spl Delta/ modulator for speech coding with 80 dB dynamic range international solid-state circuits conference. ,vol. 31, pp. 1873- 1880 ,(1996) , 10.1109/4.545807
M. Ortmanns, F. Gerfers, Y. Manoli, A continuous-time sigma-delta modulator with switched capacitor controlled current mode feedback european solid-state circuits conference. pp. 249- 252 ,(2003) , 10.1109/ESSCIRC.2003.1257119
S. Luschas, Hae-Seung Lee, High-speed /spl Sigma//spl Delta/ modulators with reduced timing jitter sensitivity IEEE Transactions on Circuits and Systems Ii: Analog and Digital Signal Processing. ,vol. 49, pp. 712- 720 ,(2002) , 10.1109/TCSII.2002.807575
O. Oliaei, H. Aboushady, Jitter effects in continuous-time /spl Sigma//spl Delta/ modulators with delayed return-to-zero feedback international conference on electronics circuits and systems. ,vol. 1, pp. 351- 354 ,(1998) , 10.1109/ICECS.1998.813338
Angel Pérez-Verdú, Angel Rodríguez-Vázquez, Fernando Medeiro, Top-Down Design of High-Performance Sigma-Delta Modulators ,(1998)
M. Ortmanns, F. Gerfers, Y. Manoli, Clock jitter insensitive continuous-time /spl Sigma//spl Delta/ modulators international conference on electronics circuits and systems. ,vol. 2, pp. 1049- 1052 ,(2001) , 10.1109/ICECS.2001.957666
A. Berkovitz, I. Rusnak, FFT processing of randomly sampled harmonic signals IEEE Transactions on Signal Processing. ,vol. 40, pp. 2816- 2819 ,(1992) , 10.1109/78.165670