Title :
Novel second-order Δ-Σ modulator/frequency-to-digital converter
Author :
Hovin, M. ; Olsen, A. ; Lande, T.S. ; Toumazou, C.
Author_Institution :
Dept. of Inf., Oslo Univ., Norway
fDate :
1/19/1995 12:00:00 AM
Abstract :
A novel second-order cascaded Δ-Σ modulator concept is presented. The first integrator is extracted, and implemented by an FM oscillator. The result is a simple, extended multibit Δ-Σ modulator with no component matching restrictions, and a high sampling frequency potential. Without the oscillator, the modulator becomes a second-order Δ-Σ F/D converter
Keywords :
cascade networks; frequency modulation; modulators; sigma-delta modulation; ADC; FM oscillator; cascaded delta-sigma modulator; multibit modulator; second-order Δ-Σ modulator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950093
