Open AccessExtending minimum sequence length invariantly to constant input for MASH 1‐1‐1 digital delta–sigma modulator
Author(s) -
Song J.
Publication year - 2017
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2017.1777
Subject(s) - delta sigma modulation , noise shaping , noise (video) , sequence (biology) , modulation (music) , sigma , electronic engineering , delta modulation , signal (programming language) , analog signal , engineering , mathematics , algorithm , computer science , digital signal processing , artificial intelligence , telecommunications , physics , acoustics , cmos , quantum mechanics , pulse amplitude modulation , biology , detector , pulse (music) , image (mathematics) , genetics , programming language
The architecture of MASH 1‐1‐1 digital delta–sigma modulator for lengthening minimum sequence length is proposed. The first stage of the proposed multi‐stage noise‐shaping (MASH) delta–sigma modulator consists of two parts for the quantisation of input and the generation of long periodic feed‐forward signal. The feed‐forward signal results in extending the minimum sequence length invariantly to the input of the MASH 1‐1‐1 delta–sigma modulator. The noise power spectrum is analysed for preserving the noise‐shaping capability of the MASH architecture.