An enhanced first-order sigma-delta modulator with a controllable signal-to-noise ratio

An enhanced first-order sigma-delta modulator with a controllable signal-to-noise ratio

This paper presents an enhanced first-order sigma-delta modulator. The proposed modulator, derived using the Al-Alaoui operator, outperforms the conventional modulator. A comparison is drawn showing that the conventional sigma-delta modulator is a special case of the enhanced sigma-delta modulator....

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Veröffentlicht in:IEEE transactions on circuits and systems. 1, Fundamental theory and applications Fundamental theory and applications, 2006-03, Vol.53 (3), p.634-643
Hauptverfasser: Al-Alaoui, M.A., Ferzli, R.
Format: Artikel
Sprache:eng
Schlagworte:
Al-Alaoui operator
Aluminum
Analog-digital conversion
analog-to-digital converter (ADC)
Circuits
Delta-sigma modulation
Derivation
digital-to-analog converter (DAC)
Linearity
Mathematical analysis
Modulators
Multiaccess communication
Noise shaping
Optimization
Performance analysis
Quantization
sigma-delta modulator
Signal resolution
Signal to noise ratio
signal-to-noise ratio (SNR)
Simulation
stability
Transfer functions
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Beschreibung
Zusammenfassung:This paper presents an enhanced first-order sigma-delta modulator. The proposed modulator, derived using the Al-Alaoui operator, outperforms the conventional modulator. A comparison is drawn showing that the conventional sigma-delta modulator is a special case of the enhanced sigma-delta modulator. The paper includes an analytical derivation as well as extensive simulations revealing the superiority of the proposed modulator reaching optimal performance
ISSN:1549-8328
1057-7122
1558-0806
DOI:10.1109/TCSI.2005.859049