Title :
Tunable bandpass sigma delta modulators
Author :
El-Nozahi, Mohamed A. ; Dessouky, Mohamed ; Ragai, Hani F.
Author_Institution :
Dept. of Electron. & Commun., Ain Shams Univ., Cairo
Abstract :
This paper examines different designs for tunable bandpass sigma delta modulators. Both discrete and continuous time implementations are considered. Comparison between different tuning methods is demonstrated using MATLAB simulations. Results show that discrete time modulators using variable coefficients are best suited for tunability
Keywords :
band-pass filters; circuit tuning; sigma-delta modulation; MATLAB simulations; continuous time modulators; discrete time modulators; tunable bandpass sigma delta modulators; tuning methods; Delta modulation; Delta-sigma modulation; Filters; Frequency; Local oscillators; Mixers; Sampling methods; Synthesizers; Tunable circuits and devices; Tuning;
Conference_Titel :
Circuits and Systems, 2003 IEEE 46th Midwest Symposium on
Conference_Location :
Cairo
Print_ISBN :
0-7803-8294-3
DOI :
10.1109/MWSCAS.2003.1562260
