A digital prediction compensation for DR improvement in CT DSM with digital noise coupling

Autor:	Jiaxi Pang, Xilong Ou, Qiang Li
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	analogue‐digital conversion continuous time filters sigma‐delta modulation Electrical engineering. Electronics. Nuclear engineering TK1-9971
Zdroj:	Electronics Letters, Vol 60, Iss 5, Pp n/a-n/a (2024)
Druh dokumentu:	article
ISSN:	1350-911X 0013-5194
DOI:	10.1049/ell2.13124
Popis:	Abstract This paper presents a prediction‐based dynamic range (DR) compensation technique in continuous‐time (CT) delta ‐sigma modulator (DSM) with digital‐domain noise coupling (DNC) structure. A digital prediction technique is proposed to address the issue of maximum stable amplitude (MSA) loss caused by DNC. The proposed prediction method has been shown to significantly extend the MSA of CT DSM with DNC. Moreover, through the extension of MSA, the DR and SNDR is significantly improved. A CTDSM with proposed compensation achieves a SNDR of 85.1dB at ‐1dBFS and a DR of 89dB.
Databáze:	Directory of Open Access Journals
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