{"id":221567,"date":"2011-05-02T22:00:00","date_gmt":"2011-05-02T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/circuits-integres-de-synthese-numerique-directe\/"},"modified":"2011-05-02T22:00:00","modified_gmt":"2011-05-02T22:00:00","slug":"circuits-integres-de-synthese-numerique-directe","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/circuits-integres-de-synthese-numerique-directe\/","title":{"rendered":"Circuits int\u00e9gr\u00e9s de synth\u00e8se num\u00e9rique directe"},"content":{"rendered":"<p>Les circuits DDS <a href=\"http:\/\/www.analog.com\/AD9838\">AD9838<\/a> et <a href=\"http:\/\/www.analog.com\/AD9837\">AD9837<\/a> consomment seulement 11&nbsp;mW &agrave; une fr&eacute;quence d&rsquo;horloge pouvant atteindre 16&nbsp;MHz. Ces nouvelles r&eacute;f&eacute;rences sont tout particuli&egrave;rement adapt&eacute;es aux applications industrielles et de communications, parmi lesquelles l&rsquo;excitation sensoriellede capteurs, la spectroscopie d&rsquo;imp&eacute;dance, ainsi que les &eacute;quipements de diagnostic et de communication aliment&eacute;s par batterie. Le temps d&rsquo;&eacute;tablissement des circuits int&eacute;gr&eacute;s de synth&egrave;se num&eacute;rique directe AD9838 et AD9837 est de l&rsquo;ordre de quelques nanosecondes, avec une granularit&eacute; nettement inf&eacute;rieure &agrave; 100&nbsp;MHz. Associ&eacute;s &agrave; un convertisseur num&eacute;rique\/analogique 10 bits basse consommation int&eacute;gr&eacute;, ces nouveaux produits assurent une granularit&eacute; sur 28 bits et une large plage dynamique sans parasite (SFDR) qui leur permettent de g&eacute;n&eacute;rer un signal stable dans la bande d&rsquo;int&eacute;r&ecirc;t avec une rapidit&eacute; et une pr&eacute;cision accrues. Par ailleurs, gr&acirc;ce aux dimensions r&eacute;duites des circuits int&eacute;gr&eacute;s DDS AD9838 (4 x 4&nbsp;mm) et AD9837 (3&nbsp;x&nbsp;3&nbsp;mm), les d&eacute;veloppeurs peuvent r&eacute;duire l&rsquo;encombrement de leurs projets ou augmenter la densit&eacute; des n&oelig;uds de capteurs, et ainsi d&eacute;velopper des applications dot&eacute;es d&rsquo;une grande richesse fonctionnelle en conservant le m&ecirc;me format.<a href=\"http:\/\/www.analog.com\/AD9837\"><br \/>\nwww.analog.com\/AD9838<br \/>\nwww.analog.com\/AD9837<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Analog Devices annonce la disponibilit\u00e9 de deux nouveaux circuits int\u00e9gr\u00e9s de synth\u00e8se num\u00e9rique directe (DDS) qui se caract\u00e9risent par une consommation de puissance et un encombrement inf\u00e9rieurs de respectivement 30 % et 60 % par rapport aux solutions concurrentes tout en fonctionnant dans la plage de temp\u00e9rature \u00e9tendue comprise entre -40\u00b0C et 125\u00b0C.<\/p>\n","protected":false},"author":22,"featured_media":221568,"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-221567","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Circuits int\u00e9gr\u00e9s de synth\u00e8se num\u00e9rique directe ...<\/title>\n<meta name=\"description\" content=\"Analog Devices annonce la disponibilit\u00e9 de deux nouveaux circuits int\u00e9gr\u00e9s de synth\u00e8se num\u00e9rique directe (DDS) qui se caract\u00e9risent par une...\" \/>\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\/221567\/\" 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