{"id":23737,"date":"2019-10-22T10:31:59","date_gmt":"2019-10-22T08:31:59","guid":{"rendered":"https:\/\/ranatec.com\/digital-step-attenuators-applications-and-characteristics\/"},"modified":"2019-10-22T10:31:59","modified_gmt":"2019-10-22T08:31:59","slug":"digital-step-attenuators-applications-and-characteristics","status":"publish","type":"post","link":"https:\/\/ranatec.com\/en-gb\/digital-step-attenuators-applications-and-characteristics\/","title":{"rendered":"3 Applications and Characteristics of Digital Step Attenuators"},"content":{"rendered":"<p><img decoding=\"async\" class=\"size-medium wp-image-6464 alignright\" src=\"https:\/\/ranatec.com\/wp-content\/uploads\/2019\/04\/01-300x206.jpg\" alt=\"Digital Step Attenuator | Ranatec\" width=\"300\" height=\"206\" srcset=\"https:\/\/ranatec.com\/wp-content\/uploads\/2019\/04\/01-200x137.jpg 200w, https:\/\/ranatec.com\/wp-content\/uploads\/2019\/04\/01-300x206.jpg 300w, https:\/\/ranatec.com\/wp-content\/uploads\/2019\/04\/01-400x275.jpg 400w, https:\/\/ranatec.com\/wp-content\/uploads\/2019\/04\/01-450x309.jpg 450w, https:\/\/ranatec.com\/wp-content\/uploads\/2019\/04\/01-500x344.jpg 500w, https:\/\/ranatec.com\/wp-content\/uploads\/2019\/04\/01-600x412.jpg 600w, https:\/\/ranatec.com\/wp-content\/uploads\/2019\/04\/01.jpg 700w, https:\/\/ranatec.com\/wp-content\/uploads\/2019\/04\/01-705x485.jpg 705w, https:\/\/ranatec.com\/wp-content\/uploads\/2019\/04\/01-768x528.jpg 768w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>In any radio or microwave equipment or solution there is a need to control the power level of the transmitted or received RF signal. Controlling the signal strength is a must to:<\/p>\n<ul>\n<li>Secure compliance with standards and regulations \u2013 and to avoid unhealthy radiation<\/li>\n<li>Avoid hardware damages due to excessive RF power levels<\/li>\n<li>Optimize performance of networks, receivers, transmitters and other RF functions<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">In this quick-guide, you\u2019ll learn the fundamentals of digital step attenuators, including what they are, applications of an attenuator, characteristics, as well as how to find the ideal attenuator for your needs.<\/span><\/p>\n<h2>What is a Digital Attenuator?<\/h2>\n<p>Generally speaking, an RF digital step attenuator is a device that is used to apply a controlled amount of attenuation to an RF signal \u2013 and where this amount of attenuation is digitally controlled. It is useful to distinguish between three different implementation levels of digital attenuators:<\/p>\n<ol>\n<li>Integrated circuits (or even IP-blocks), for tight integration into high volume products. Requires detailed hardware and software integration<\/li>\n<li>Digital attenuator modules, requiring less engineering effort, and for integration at system level<\/li>\n<li>Stand-alone digital step attenuator solutions, typically including multiple, independent channels and covering a wide range of applications<\/li>\n<\/ol>\n<h2><strong>Application of an Attenuator<\/strong><\/h2>\n<p>There is a wide range of use-cases and applications of attenuator solutions. Examples of varying complexity includes:<\/p>\n<ul>\n<li>Within any device used for wireless communication, from IoT modules to handsets wireless routers and mobile base stations, there is a need to adequately control the RF signal levels at various points in the design<\/li>\n<li>For larger systems and solutions, such as radio access networks, the overall efficiency is dependent on adequate balancing and control of the RF power levels in all parts of the network<\/li>\n<li>Throughout the product life-cycle of any radio or microwave equipment \u2013 from research and development, through homologation, production and maintenance, there is a need for extensive RF testing. This testing typically includes set-ups where the RF power levels, at various points in the set-up, can be controlled by means of digital attenuators.<\/li>\n<\/ul>\n<h2>Characteristics of Digital Step Attenuators<\/h2>\n<p>Irrespective of targeted application or implementation selected, any digital attenuator is characterized by a set of parameters such as operating frequency range, minimum and maximum attenuation, attenuation step-size, and accuracy. Different applications require different parameters as well as the selection of a control interface. Typically, stand-alone digital step attenuator solutions intended for more general use exhibit the widest frequency and attenuation range as well as the highest accuracy.<\/p>\n<h2>Selecting an optimal step attenuator<\/h2>\n<p>To select a digital attenuator always start by understanding the application and the preferred implementation (integrated, module or stand-alone). As an example, a step attenuator intended for efficient, automated production testing of mobile devices would require a multi-channel stand-alone digital step attenuator solution with a wide frequency range, a high dynamic range and a high attenuation accuracy. For this purpose, Ranatec has a family of high accuracy, <strong><a href=\"https:\/\/ranatec.com\/product-category\/digital-step-attenuator\/\">digital attenuator boxes<\/a><\/strong>, covering 100 MHz to 8 GHz and up to 110 dB attenuation. The state-of-the-art accuracy is obtained through a high precision attenuator design, along with an extensive factory calibration procedure. Thus, the actual attenuation can be known within +\/-0.25 dB. These digital attenuator boxes can be optimized and configured to customer specifications, depending on the actual application.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In any radio or microwave equipment or solution there is [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":23738,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[328],"tags":[],"class_list":["post-23737","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Digital Step Attenuators \u2013 Applications and Characteristics | Ranatec<\/title>\n<meta name=\"description\" content=\"Know more about characteristics of Digital Step Attenuators and how to select an optimal 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