Sigma-delta modulator: Refinement of equivalent circuit and transfer function

Authors

  • V. S. Golub Scientific-Production Company VD MAIS, Ukraine

DOI:

https://doi.org/10.3103/S0735272710060063

Keywords:

sigma-delta modulation, sigma-delta modulator, quantizer, equivalent circuit, transfer function, modelling

Abstract

Analysis of sigma-delta modulator and its models (equivalent circuits) is performed. New refined equivalent circuit of modulator and its transfer function are suggested. Modeling of modulator is performed which confirms results of analysis.

References

E. K. Shakhov, “SD-ADC: Classification and Mathematical Models,” Sensors & Systems, No. 12, 69 (2006).

R. Schreier and G. C. Temes (eds.), Understanding Delta–Sigma Data Converters (Wiley–IEEE Press, 2004).

V. Golub, “Glance at sigma-delta ADC,” Chip News, No. 5, 23 (1999).

V. Golub, “Sigma-delta modulator: peculiarities and application,” Elektronnyye Komponenty Ukraine, No. 1/2, 90 (2008).

V. S. Golub, “Instantaneous and average oscillations frequency and integrating FM and PFM modulators,” Radiotekhnika, No. 9, 48 (1982).

G. Korn and Т. Korn, Mathematical Handbook (McGraw-Hill, New York, 1968; Nauka, Moscow, 1974).

V. Makarenko, “Modeling of radio engineering device using NI Maltisim software,” Sec. 1–9, Electronic Components and Systems, Nos. 1–4, 6–9, 12 (2008).

Published

2010-06-06

Issue

Section

Research Articles