TRIANGULARLY WEIGHTED ZERO-CROSSING DETECTOR PROVIDING DELTA-SIGMA FREQUENCY-TO-DIGITAL CONVERSION

Authors
HOVIN ME LANDE TS WISLAND DT KIAEI S
Citation
Me. Hovin et al., TRIANGULARLY WEIGHTED ZERO-CROSSING DETECTOR PROVIDING DELTA-SIGMA FREQUENCY-TO-DIGITAL CONVERSION, Electronics Letters, 33(13), 1997, pp. 1121-1122
Citations number
8
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
33
Issue
13
Year of publication
1997
Pages
1121 - 1122
Database
ISI
SICI code
0013-5194(1997)33:13<1121:TWZDPD>2.0.ZU;2-M
Abstract
It is shown that for delta-sigma (Delta Sigma) frequency-to-digital co nversion (FDC) there is no need for a Delta Sigma modulator, since a l imited FM signal itself may be considered as an asynchronous Delta Sig ma bit-stream. By feeding the limited FM signal directly to a sinc(2) Delta Sigma decimator, a triangularly weighted zero-crossing counter F DC is introduced, providing Delta Sigma noise shaping. The results mea sured confirm the theory.