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Low-cost SNR estimation of analog signals using standard digital Automated Test Equipment (ATE)

Florence Azaïs 1 Laurent Latorre 1
1 SysMIC - Conception et Test de Systèmes MICroélectroniques
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : This paper introduces a low-cost technique for SNR estimation of analog signals based on digital ATE acquisition. The idea is to use the comparator available in standard digital test channel to record level-crossing events and to apply post-processing in order to retrieve analog signal characteristics. In this paper, we develop an analytical expression that relates the signal SNR to the distribution of level-crossing events distribution. Validations demonstrate that accurate SNR estimation can be achieved under different conditions of signal and ATE capture parameters.
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Conference papers
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https://hal-lirmm.ccsd.cnrs.fr/lirmm-00803558
Contributor : Florence Azais <>
Submitted on : Friday, March 22, 2013 - 11:44:03 AM
Last modification on : Thursday, May 24, 2018 - 3:59:24 PM

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CNRS | SYSMIC | LIRMM | LIRMM_MIC | MIC | MIPS | UNIV-MONTPELLIER

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Florence Azaïs, Laurent Latorre. Low-cost SNR estimation of analog signals using standard digital Automated Test Equipment (ATE). NEWCAS: International New Circuits and Systems Conference, Jun 2012, Montréal, Canada. pp.197-200, ⟨10.1109/NEWCAS.2012.6328990⟩. ⟨lirmm-00803558⟩

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