Digital Compensated Methodology of a 2-1-1 cascaded continuous time delta-sigma modulator
作者： Po-Sheng Chen , Hsin-Liang Chen , Jen-Shiun Chiang
DOI: 10.1109/ISCAS.2009.5118245
关键词:
摘要: Conventionally a continuous time (CT) cascaded delta-sigma modulator is designed by virtue of the transforming from its equivalent discrete (DT) with compensation paths in analog part. This work presents new approach that does not need when implementing high order CT modulator. We move to digital cancellation filters, and it leads more efficient architecture terms circuitry complexity, power consumption, area cost, robustness circuit non-ideality. A 2-1-1 for audio band application was simulated; dynamic range 83.7 dB. The simulation results indicate performance this competitive conventional less hardware complexity dissipation.
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