{"id":231588,"date":"2014-11-25T23:00:00","date_gmt":"2014-11-25T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/convertisseurs-a-n-ultra-rapides-de-haute-precision-et-basse-consommation\/"},"modified":"2014-11-25T23:00:00","modified_gmt":"2014-11-25T23:00:00","slug":"convertisseurs-a-n-ultra-rapides-de-haute-precision-et-basse-consommation","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/convertisseurs-a-n-ultra-rapides-de-haute-precision-et-basse-consommation\/","title":{"rendered":"Convertisseurs A\/N ultra rapides de haute pr\u00e9cision et basse consommation"},"content":{"rendered":"<p>Les convertisseurs 14 et 16 bits affichent une pr&eacute;cision in&eacute;gal&eacute;e avec un rapport signal sur bruit SNR de plus de 74 dB et une plage dynamique exploitable SFDR de plus de 90 dB, tandis que les versions 12 bits offrent un SNR de 71,3 dB et un SFDR de 90 dB. Ces performances autorisent des mesures ultra pr&eacute;cises des signaux entrants rapides.<br \/>\nLes deux familles fonctionnent avec une consommation extr&ecirc;mement faible de 490 mW &agrave; 200 MSPS, y compris des E\/S num&eacute;riques LVDS. Des modes &agrave; &eacute;conomie d&rsquo;&eacute;nergie font descendre la consommation &agrave; 80 mW en mise en veille et &agrave; 33 mW apr&egrave;s d&eacute;sactivation.<br \/>\nCes composants int&egrave;grent diverses fonctions de traitement num&eacute;rique qui simplifient la conception du syst&egrave;me et r&eacute;duisent les co&ucirc;ts et la consommation. Ils disposent &eacute;galement de filtres de d&eacute;cimation qui am&eacute;liorent le rapport SNR, de l&rsquo;ajustement individuel de la phase, de l&rsquo;offset et du gain sur chaque canal et d&rsquo;une r&eacute;cup&eacute;ration du retard fractionnaire pour ajuster le synchronisme en mode multi-canal. Les donn&eacute;es sont accessibles au travers une interface s&eacute;rie DDR LVDS ou parall&egrave;le CMOS, et sont configur&eacute;es via une liaison SPI.<br \/>\nGr&acirc;ce &agrave; son convertisseur abaisseur num&eacute;rique int&eacute;gr&eacute;, la famille des MCP37DX1-200 se r&eacute;v&egrave;le particuli&egrave;rement bien adapt&eacute;e pour les applications de communication. Les familles 12 bits incluent un circuit de r&eacute;-&eacute;chantillonnage avec un &eacute;tage de traitement du bruit (noise shaping) qui permet aux utilisateurs de diminuer le bruit sur une bande de fr&eacute;quence donn&eacute;e pour une pr&eacute;cision et des performances accrues.<br \/>\nCes convertisseurs sont con&ccedil;us pour les applications du march&eacute; des t&eacute;l&eacute;communications, telles que les stations de base, les &eacute;quipements de test et les r&eacute;cepteurs de<strong><em> <\/em><\/strong>fr&eacute;quence interm&eacute;diaire (IF). En outre, pour faciliter leur d&eacute;veloppement, ces deux familles sont compatibles avec des cartes d&rsquo;&eacute;valuation 16 bits et 12 bits ainsi qu&rsquo;une carte de capture de donn&eacute;es haute vitesse pipeline. <\/p>\n<\/p>\n<p><a href=\"http:\/\/www.microchip.com\/MCP37DX1-200_MCP372X1-200-Page--111214a\" title=\"www.microchip.com\/MCP37DX1-200_MCP372X1-200\">www.microchip.com\/MCP37DX1-200_MCP372X1-200<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Constitu\u00e9es de mod\u00e8les 12, 14 et 16 bits \u00e0 architecture pipeline, les deux familles de convertisseurs A\/N ultra rapides MCP37DX1-200 et MCP372X1-200 de Microchip sont caract\u00e9ris\u00e9es par une fr\u00e9quence d\u2019\u00e9chantillonnage maximale de 200 MSPS. De plus, ces composants associent un tr\u00e8s haut niveau de pr\u00e9cision et une consommation r\u00e9duite dans un bo\u00eetier de faible empreinte VTLA-124.<\/p>\n","protected":false},"author":22,"featured_media":231589,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-231588","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Convertisseurs A\/N ultra rapides de haute pr\u00e9cision et basse c...<\/title>\n<meta name=\"description\" content=\"Constitu\u00e9es de mod\u00e8les 12, 14 et 16 bits \u00e0 architecture pipeline, les deux familles de convertisseurs A\/N ultra rapides MCP37DX1-200 et MCP372X1-200 de...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/231588\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Convertisseurs A\/N ultra rapides de haute pr\u00e9cision et basse consommation\" \/>\n<meta property=\"og:description\" content=\"Constitu\u00e9es de mod\u00e8les 12, 14 et 16 bits \u00e0 architecture pipeline, les deux familles de convertisseurs A\/N ultra rapides MCP37DX1-200 et MCP372X1-200 de Microchip sont caract\u00e9ris\u00e9es par une fr\u00e9quence d\u2019\u00e9chantillonnage maximale de 200 MSPS. De plus, ces composants associent un tr\u00e8s haut niveau de pr\u00e9cision et une consommation r\u00e9duite dans un bo\u00eetier de faible empreinte VTLA-124.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/231588\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2014-11-25T23:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci7050_microchip_mc1226-mcp37dx1-200_mcp372x1-lo.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2100\" \/>\n\t<meta property=\"og:image:height\" content=\"1500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" 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