{"id":218004,"date":"2016-03-14T05:00:00","date_gmt":"2016-03-14T05:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/melangeur-large-bande-avec-ol-doubleur-de-frequence-integre\/"},"modified":"2016-03-14T05:00:00","modified_gmt":"2016-03-14T05:00:00","slug":"melangeur-large-bande-avec-ol-doubleur-de-frequence-integre","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/melangeur-large-bande-avec-ol-doubleur-de-frequence-integre\/","title":{"rendered":"M\u00e9langeur large bande avec OL doubleur de fr\u00e9quence int\u00e9gr\u00e9"},"content":{"rendered":"<p>Ce m\u00e9langeur int\u00e8gre des transformateurs balun&nbsp;sur les ports&nbsp;RF et de l\u2019OL, avec une adaptation 50 ohms sur chacun d\u2019eux et sur les plages respectives de 2 GHz \u00e0 13,6 GHz et de 1GHz &nbsp;\u00e0 12 GHz, &nbsp;autorisant un fonctionnement unipolaire. De plus, le port FI du continu (DC) \u00e0 6 GHz est compatible avec les \u00e9metteurs-r\u00e9cepteurs large bande et r\u00e9cepteurs en bande de base.<\/p>\n<p>&nbsp;<\/p>\n<p>Ce dispositif simplifie la mise en \u0153uvre d\u2019\u00e9metteurs&nbsp;et de r\u00e9cepteurs hyperfr\u00e9quences en int\u00e9grant un \u00e9tage tampon \u00e0&nbsp;oscillateur local (OL) dont le niveau de contr\u00f4le requis est de seulement 0 dBm, \u00e9liminant de ce fait le besoin d\u2019un circuit amplificateur \u00e0&nbsp;OL externe. De plus, il int\u00e8gre sur la puce un OL doubleur de fr\u00e9quence s\u00e9lectionnable, ce qui offre la possibilit\u00e9 d\u2019utilisation de synth\u00e9tiseurs basse fr\u00e9quence courants et peu co\u00fbteux. Son isolation exceptionnelle entre ports r\u00e9duit les fuites ind\u00e9sirables de l\u2019OL et facilite le filtrage externe.<\/p>\n<p>En outre, ce composant poss\u00e8de une protection renforc\u00e9e contre les d\u00e9charges \u00e9lectrostatiques (ESD) de 2000V HBM&nbsp;(mod\u00e8le du corps humain) sur chaque broche.<\/p>\n<p>&nbsp;<\/p>\n<p>Les performances de ce m\u00e9langeur conviennent \u00e0 une large gamme d\u2019applications comprenant les&nbsp;applications hyperfr\u00e9quences, les liaisons sans fil \u00e9mergentes sans licence 5,8 GHz et les stations de base cellulaires, les services sans fil large bande sous la norme LTE avanc\u00e9e 14 GHz, les \u00e9metteurs-r\u00e9cepteurs satellitaires large bande, les syst\u00e8mes radars, les \u00e9metteurs-r\u00e9cepteurs en bandes Ku et X, les analyseurs de spectre, les modems des \u00e9quipements de test RF et des satellites.<\/p>\n<p>&nbsp;<\/p>\n<p>Propos\u00e9 en petit bo\u00eetier plastique QFN 12 broches, de seulement 3 x 2 mm&nbsp;et associ\u00e9 \u00e0 un nombre minimal de composants externes, ce circuit &nbsp;procure une mise en \u0153uvre d\u2019empreinte compacte. Sp\u00e9cifi\u00e9 sur la gamme de temp\u00e9rature de -40 \u00b0C \u00e0 +105 \u00b0C, il fonctionne avec une alimentation unique de 3,3 V pour une consommation nominale de 120 mA. Cette consommation peut \u00eatre r\u00e9duite \u00e0 seulement 100 \u00b5A au maximum quand le circuit est d\u00e9sactiv\u00e9 gr\u00e2ce \u00e0 sa broche de validation. Cette derni\u00e8re peut \u00eatre contr\u00f4l\u00e9e directement pour commander en moins de 0,2 \u00b5s la mise en marche ou l\u2019arr\u00eat du composant, admettant ainsi les radios en duplex par s\u00e9paration temporelle (TDD) ou en mode rafale.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"http:\/\/www.linear.com\/product\/LTC5548\" target=\"_blank\" rel=\"noopener\">www.linear.com\/product\/LTC5548<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Capable de fonctionner en mode supradyne ou infradyne sur la gamme de fr\u00e9quences exceptionnellement large de 2 GHz \u00e0 14 GHz, le double m\u00e9langeur \u00e9quilibr\u00e9  LTC5548 de Linear Technology pr\u00e9sente une lin\u00e9arit\u00e9 \u00e9lev\u00e9e, avec un IP3 de 24,4 dBm \u00e0 5,8 GHz et de 21,4 dBm \u00e0 9 GHz, et dispose d\u2019un oscillateur local (OL) doubleur de fr\u00e9quence.<\/p>\n","protected":false},"author":9,"featured_media":218005,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[916],"domains":[47],"ppma_author":[1141],"class_list":["post-218004","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-rf-transmission-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>M\u00e9langeur large bande avec OL doubleur de fr\u00e9quence int\u00e9gr\u00e9 ...<\/title>\n<meta name=\"description\" content=\"Capable de fonctionner en mode supradyne ou infradyne sur la gamme de fr\u00e9quences exceptionnellement large de 2 GHz \u00e0 14 GHz, le double m\u00e9langeur...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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