Dual-clock MASH delta-sigma modulator employing a frequency modulated intermediate signal

[摘要] References(8)Cited-By(1)A dual-clock MASH (multi-stage noise shaping) delta-sigma modulator (DSM) is proposed for high performance analog-digital converter. This employs a DSM using a frequency modulated intermediate signal (FMDSM) for the last stage. The sampling clock frequency for the last stage can be increased due to the features of the FMDSM. It is shown that this can increase the SNR beyond the conventional MASH DSMs.

[学科分类] 电子、光学、磁材料

[关键词] delta sigma modulator;analog digital converter;MASH