Title :
Stability analysis of the second order ΣΔ modulator
Author :
Steiner, Philip ; Yang, Woodward
Author_Institution :
Div. of Appl. Sci., Harvard Univ., Cambridge, MA, USA
fDate :
30 May-2 Jun 1994
Abstract :
The stability of the second order ΣΔ modulator proposed by Candy (1985) is proven for any properly bounded DC input. It is found, however, that there exists a class of AC inputs for which this ΣΔ modulator is unstable over most of the dynamic range of the input. The possible extension of the methods used for the second order system to higher order systems is discussed as well
Keywords :
circuit stability; modulators; sigma-delta modulation; AC inputs; bounded DC input; dynamic range; high order systems; second order sigma-delta modulator; stability analysis; Clocks; Closed-form solution; Delta modulation; Dynamic range; Gain; Linear systems; Nonlinear equations; Predictive models; Stability analysis; State-space methods;
Conference_Titel :
Circuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-1915-X
DOI :
10.1109/ISCAS.1994.409383
