{"id":221172,"date":"2011-03-03T23:00:00","date_gmt":"2011-03-03T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/double-cna-interpolateur-16-bits-800-mech-s-dune-linearite-maximale-et-dun-encombrement-minimal\/"},"modified":"2011-03-03T23:00:00","modified_gmt":"2011-03-03T23:00:00","slug":"double-cna-interpolateur-16-bits-800-mech-s-dune-linearite-maximale-et-dun-encombrement-minimal","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/double-cna-interpolateur-16-bits-800-mech-s-dune-linearite-maximale-et-dun-encombrement-minimal\/","title":{"rendered":"Double CNA interpolateur 16 bits, 800 M\u00e9ch\/s d&rsquo;une lin\u00e9arit\u00e9 maximale et d&rsquo;un encombrement minimal"},"content":{"rendered":"<p>Les atouts du DAC3283 sont nombreux. L&rsquo;ACLR (Adjacent Channel Leakage Ratio) WCDMA 1 porteuse de 81 dBc pour une fr&eacute;quence interm&eacute;diaire de 153 MHz am&eacute;liore notamment les performances spectrales tout en simplifiant la conception des syst&egrave;mes. Les filtres interpolateurs s&eacute;lectionnables r&eacute;duisent encore les d&eacute;bits d&rsquo;entr&eacute;e de donn&eacute;es tout en tirant parti de d&eacute;bits de conversion pouvant atteindre 800 M&eacute;ch\/s, et la correction du d&eacute;calage de phase I\/Q accro&icirc;t l&rsquo;efficacit&eacute; des modulateurs d&rsquo;amplitude en quadrature des syst&egrave;mes 3G, 4G et multiporteuses exigeants dont les fr&eacute;quences d&rsquo;&eacute;mission sont comprises entre 50 MHz et 6 GHz. La prise en charge de la synchronisation multi-CNA simplifie la conception des syst&egrave;mes radio &agrave; antenne intelligente et antenne de r&eacute;ception &agrave; diversit&eacute;.<br \/>\nLe DAC3283 est d&rsquo;ores et d&eacute;j&agrave; disponible en bo&icirc;tier QFN 48 broches de 7x7mm. De m&ecirc;me encombrement, le <a href=\"http:\/\/www.ti.com\/dac3283-preu\">DAC3282<\/a> est un CNA 625 M&eacute;ch\/s optimis&eacute; pour les &eacute;metteurs en bande de base et basse fr&eacute;quence d&rsquo;entr&eacute;e &agrave; interpolation 2x et filtre de correction du sinus cardinal. TI met &eacute;galement &agrave; disposition des modules d&rsquo;&eacute;valuation (EVM) des DAC3282 et DAC3283 comprenant une cha&icirc;ne d&rsquo;&eacute;metteurs compos&eacute;e d&rsquo;un g&eacute;n&eacute;rateur d&rsquo;horloge hautes performances (<a href=\"http:\/\/www.ti.com\/cdce62005-tl\">CDCE62005)<\/a> et du modulateur d&rsquo;amplitude en quadrature <a href=\"http:\/\/www.ti.com\/trf370417-tl\">TRF370417<\/a>. Pour une &eacute;valuation rapide, ces EVM sont enti&egrave;rement compatibles avec le module de g&eacute;n&eacute;rateur de mires <a href=\"http:\/\/www.ti.com\/dac3283evm-tl\">TSW3100<\/a> de TI.<\/p>\n<p><a href=\"http:\/\/www.ti.com\/ads4149-preu\">www.ti.com\/dac3283-preu<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Texas Instruments annonce un convertisseur num\u00e9rique-analogique interpolateur 16 bits, 800 M\u00e9ch\/s offrant une distorsion d&rsquo;intermodulation de troisi\u00e8me ordre (IMD3) de 75 dBc \u00e0 200 MHz. Propos\u00e9 en bo\u00eetier QFN de 7x7mm, le DAC3283 s&rsquo;av\u00e8re \u00e9galement le CNA le plus compact de sa cat\u00e9gorie, limitant sensiblement l&rsquo;espace carte n\u00e9cessaire dans de nombreuses applications : communications sans fil, radios logicielles, test et mesure et lin\u00e9arisation d&rsquo;amplificateurs de puissance. Par ailleurs, ce convertisseur int\u00e8gre une interface diff\u00e9rentielle d&rsquo;un seul octet, ce qui r\u00e9duit le nombre de broches d&rsquo;entr\u00e9e de donn\u00e9es de 50% et permet ainsi aux concepteurs d&rsquo;opter pour un FPGA ou un ASIC meilleur march\u00e9 en amont du CNA.<\/p>\n","protected":false},"author":22,"featured_media":221173,"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-221172","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Double CNA interpolateur 16 bits, 800 M\u00e9ch\/s d&#039;une lin\u00e9arit\u00e9...<\/title>\n<meta name=\"description\" content=\"Texas Instruments annonce un convertisseur num\u00e9rique-analogique interpolateur 16 bits, 800 M\u00e9ch\/s offrant une distorsion d&#039;intermodulation de troisi\u00e8me...\" \/>\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\/221172\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Double CNA interpolateur 16 bits, 800 M\u00e9ch\/s d&#039;une lin\u00e9arit\u00e9 maximale et d&#039;un encombrement minimal\" \/>\n<meta property=\"og:description\" content=\"Texas Instruments annonce un convertisseur num\u00e9rique-analogique interpolateur 16 bits, 800 M\u00e9ch\/s offrant une distorsion d&#039;intermodulation de troisi\u00e8me ordre (IMD3) de 75 dBc \u00e0 200 MHz. Propos\u00e9 en bo\u00eetier QFN de 7x7mm, le DAC3283 s&#039;av\u00e8re \u00e9galement le CNA le plus compact de sa cat\u00e9gorie, limitant sensiblement l&#039;espace carte n\u00e9cessaire dans de nombreuses applications : communications sans fil, radios logicielles, test et mesure et lin\u00e9arisation d&#039;amplificateurs de puissance. Par ailleurs, ce convertisseur int\u00e8gre une interface diff\u00e9rentielle d&#039;un seul octet, ce qui r\u00e9duit le nombre de broches d&#039;entr\u00e9e de donn\u00e9es de 50% et permet ainsi aux concepteurs d&#039;opter pour un FPGA ou un ASIC meilleur march\u00e9 en amont du CNA.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/221172\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2011-03-03T23:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci1991_ti_dac3283-1024x819.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"819\" \/>\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\" 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Propos\u00e9 en bo\u00eetier QFN de 7x7mm, le DAC3283 s'av\u00e8re \u00e9galement le CNA le plus compact de sa cat\u00e9gorie, limitant sensiblement l'espace carte n\u00e9cessaire dans de nombreuses applications : communications sans fil, radios logicielles, test et mesure et lin\u00e9arisation d'amplificateurs de puissance. 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