By Lucien Breems, Johan H. Huijsing
This article describes the layout and idea of continuous-time sigma-delta modulators for analogue-to-digital conversion in radio receivers. The book's major concentration is on dynamic diversity, linearity and gear potency points of sigma-delta modulators, that are extremely important standards to be used in battery operated receivers.
Read or Download Continuous Time Sigma Delta Modulation for A d Conversion in Radio Receivers Volume 634 (The Springer International Series in Engineering and Computer Science) PDF
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Additional info for Continuous Time Sigma Delta Modulation for A d Conversion in Radio Receivers Volume 634 (The Springer International Series in Engineering and Computer Science)
The filter output is sampled and quantized by an A/D converter which introduces a quantization error E. The digital output signal is subtracted from the analog input via a D/A converter in the feedback path. The error E due to the quantization process is the difference between the analog quantizer input signal and the quantized output. Suppression of the quantization error in a modulator is provided by two mechanisms: oversampling of the signal bandwidth and shaping of the noise by the loopfilter.
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Continuous Time Sigma Delta Modulation for A d Conversion in Radio Receivers Volume 634 (The Springer International Series in Engineering and Computer Science) by Lucien Breems, Johan H. Huijsing