{"id":103448,"date":"2018-11-13T23:06:44","date_gmt":"2018-11-13T23:06:44","guid":{"rendered":"https:\/\/\/generateur-dhorloge-mems-miniature-a-sorties-multiples\/"},"modified":"2018-11-13T23:06:44","modified_gmt":"2018-11-13T23:06:44","slug":"generateur-dhorloge-mems-miniature-a-sorties-multiples","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/generateur-dhorloge-mems-miniature-a-sorties-multiples\/","title":{"rendered":"G\u00e9n\u00e9rateur d\u2019horloge MEMS miniature \u00e0 sorties multiples"},"content":{"rendered":"<p>Les produits de timing sont essentiels au bon fonctionnement des objets connect\u00e9s compacts et appareils \u00e9lectroniques portatifs, mais les sources d\u2019horloge exigent habituellement de multiples composants pour atteindre les exigences de fr\u00e9quence des produits grand public, et donc occupent beaucoup d\u2019espace sur la carte et consomment beaucoup d\u2019\u00e9nergie. La famille d\u2019horloge DSC613 permet aux d\u00e9veloppeurs de produits de r\u00e9duire les dimensions de l\u2019application tout en allongeant la dur\u00e9e de vie des batteries.&nbsp;Pour supporter les plages de fr\u00e9quences requises pour les syst\u00e8mes intelligents modernes, les d\u00e9veloppeurs de syst\u00e8mes doivent soit placer plusieurs quartz\/oscillateurs pr\u00e8s des contr\u00f4leurs sur la carte, soit utiliser un g\u00e9n\u00e9rateur d\u2019horloge avec un quartz externe pour l\u2019entr\u00e9e de r\u00e9f\u00e9rence.&nbsp;<\/p>\n<p>La famille DSC613 constitue une v\u00e9ritable solution \u00e0 puce unique, qui int\u00e8gre une r\u00e9sonateur MEMS et deux boucles PLL&nbsp;faible consommation, le tout dans un bo\u00eetier miniature DFN \u00e0 6&nbsp;broches, mesurant 1,6&nbsp;mm&nbsp;x&nbsp;1,2&nbsp;mm. Gr\u00e2ce aux dimensions r\u00e9duites du bo\u00eetier ainsi qu\u2019\u00e0 la flexibilit\u00e9 des plages de fr\u00e9quences, la famille DSC613 est particuli\u00e8rement adapt\u00e9e aux appareils compacts qui n\u00e9cessitent une faible consommation, comme les appareils photo num\u00e9riques, les enceintes intelligentes, les casques de r\u00e9alit\u00e9 virtuelle,&nbsp;et les dongles et d\u00e9codeurs TV.<\/p>\n<p>La famille DSC613 supporte jusqu\u2019\u00e0 trois sorties d\u2019horloge de 2&nbsp;kHz \u00e0 100&nbsp;MHz, la rendant id\u00e9ale pour les syst\u00e8mes embarqu\u00e9s bas\u00e9s sur un microcontr\u00f4leur. Sur une application de l\u2019Internet de Objets (IoT), par exemple, le g\u00e9n\u00e9rateur d\u2019horloge peut \u00eatre utilis\u00e9 pour fournir une horloge de r\u00e9f\u00e9rence principale en MHz et une horloge temps r\u00e9el 32,768&nbsp;kHz pour le microcontr\u00f4leur, ainsi qu\u2019une autre horloge en MHz pour des fonctions du type connectivit\u00e9 et capteurs. La famille DSC613 comprend deux boucles PLL fractionnaires faible consommation avec synth\u00e9tiseurs d\u2019horloge AnyRate, ce qui permet au composant de g\u00e9n\u00e9rer tout type de fr\u00e9quence entre 2 kHz et 100&nbsp;MHz. \u00c0 une consommation d&rsquo;environ 5&nbsp;mA avec trois sorties en fonctionnement, la famille permet d\u2019\u00e9conomiser jusqu\u2019\u00e0 45&nbsp;% d\u2019\u00e9nergie par rapport \u00e0 une solution utilisant trois oscillateurs \u00e0 quartz faible consommation. Pour davantage d\u2019\u00e9conomies d\u2019\u00e9nergie, la sortie d\u2019horloge peut \u00eatre mise hors tension via la broche d\u2019activation de la sortie.<\/p>\n<p>La configuration d\u2019horloge comprend la fr\u00e9quence de sortie, la fonction de la broche de contr\u00f4le, la taille du bo\u00eetier, la pr\u00e9cision PPM et la plage de temp\u00e9rature. Jusqu\u2019\u00e0 trois forces de transfert de sortie sont disponibles, bas\u00e9es sur les conditions de charge de la carte du client. Des horloges \u00e0 \u00e9talement du spectre sont \u00e9galement disponibles pour la r\u00e9duction des perturbations \u00e9lectromagn\u00e9tiques. Un support technique d\u2019application, incluant des instructions d\u2019agencement de la carte et une v\u00e9rification des sch\u00e9mas, est \u00e9galement disponible.<\/p>\n<p><a href=\"http:\/\/www.microchip.com\/timing\/DSC613\">www.microchip.com\/timing\/DSC613<\/a><\/p>\n<h3 class=\"title\"><a href=\"http:\/\/www.electronique-eci.com\/news\/carte-de-developpement-dapplications-connectees-google-cloud-pour-le-microcontroleur-avr\">Carte de d\u00e9veloppement d\u2019applications connect\u00e9es \u00e0 Google Cloud pour le microcontr\u00f4leur AVR<\/a><\/h3>\n<h3 class=\"title\"><a href=\"http:\/\/www.electronique-eci.com\/news\/la-duree-de-vie-des-batteries-amelioree-grace-un-regulateur-ldo-tres-faible-courant-de-repos\">La dur\u00e9e de vie des batteries am\u00e9lior\u00e9e gr\u00e2ce \u00e0 un r\u00e9gulateur LDO \u00e0 tr\u00e8s faible courant de repos<\/a><\/h3>\n<h3 class=\"title\"><a href=\"http:\/\/www.electronique-eci.com\/news\/surveillez-la-temperature-differents-endroits\">Surveillez la temp\u00e9rature \u00e0 diff\u00e9rents endroits<\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"<p>Particuli\u00e8rement compact, le DSC613 de Microchip peut remplacer jusqu\u2019\u00e0 trois quartz et trois oscillateurs sur une carte, r\u00e9duisant ainsi l\u2019espace occup\u00e9 par les composants de timing de 80 %. Int\u00e9grant un r\u00e9sonateur MEMS faible consommation et haute stabilit\u00e9, ce composant \u00e9vite de devoir utiliser un quartz externe.<\/p>\n","protected":false},"author":9,"featured_media":103449,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-103448","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>G\u00e9n\u00e9rateur d\u2019horloge MEMS miniature \u00e0 sorties multiples ...<\/title>\n<meta name=\"description\" content=\"Particuli\u00e8rement compact, le DSC613 de Microchip peut remplacer jusqu\u2019\u00e0 trois quartz et trois oscillateurs sur une carte, r\u00e9duisant ainsi l\u2019espace...\" \/>\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\/103448\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"G\u00e9n\u00e9rateur d\u2019horloge MEMS miniature \u00e0 sorties multiples\" \/>\n<meta property=\"og:description\" content=\"Particuli\u00e8rement compact, le DSC613 de Microchip peut remplacer jusqu\u2019\u00e0 trois quartz et trois oscillateurs sur une carte, r\u00e9duisant ainsi l\u2019espace occup\u00e9 par les composants de timing de 80 %. 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