论文信息 - A multi-mode MASH ΣΑ modulator for low power wideband applications

A multi-mode MASH ΣΑ modulator for low power wideband applications

This paper proposes a novel multi-mode re-configurable multi-stage noise-shaping sigma delta (MASH ΣΔ) modulator that enhances the order of noise shaping with interstage feedback technique. This reconfigurable MASH 2-1 ΣΔ modulator achieves third, fourth and fifth order noise transfer function (NTF) in three different modes of operation. The low oversampling ratio, low distortion capability, reduction in number of active blocks and noise shaping enhancement makes the modulator attractive for low power wideband applications. Mathematical analysis and simulation results prove the fitness of this architecture.

Rijo Sebastian | Jos A. V. Prakash | Babita R. Jose | Shahana Thottathikkulam Kassim

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