Impedance is an important concept in many different realms of engineering.
\nWe often see it in our everyday life, especially if you’ve ever hooked up a home entertainment system.\u00a0 From 8-ohm speaker wire to 75-ohm coaxial cable, the right impedance is crucial to watching things explode on your TV and making sure they sound good too.<\/p>\n
Simply stated, impedance describes a relationship between voltage and current.\u00a0 For a resistor, that is a pretty simple relationship: V = IR.\u00a0 For a transmission line, however, the relationship is a bit more complicated, since energy is travelling in fields between the incident and return path, usually a trace and a plane.\u00a0 The characteristic impedance of a transmission line must be calculated using a field solver, and serves as the basis for signal integrity analysis.\u00a0 For a signal, trace impedance is targeted to “match” the driver and receiver impedance. Impedance is an important concept in many different realms of engineering. We often see it in our everyday life, especially…<\/p>\n","protected":false},"author":71672,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spanish_translation":"","french_translation":"","german_translation":"","italian_translation":"","polish_translation":"","japanese_translation":"","chinese_translation":"","footnotes":""},"categories":[13],"tags":[1072,1099,137],"industry":[],"product":[],"coauthors":[],"class_list":["post-675","post","type-post","status-publish","format-standard","hentry","category-news","tag-impedance","tag-power-integrity","tag-signal-integrity"],"_links":{"self":[{"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/posts\/675","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/users\/71672"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/comments?post=675"}],"version-history":[{"count":1,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/posts\/675\/revisions"}],"predecessor-version":[{"id":10335,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/posts\/675\/revisions\/10335"}],"wp:attachment":[{"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/media?parent=675"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/categories?post=675"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/tags?post=675"},{"taxonomy":"industry","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/industry?post=675"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/product?post=675"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/electronic-systems-design\/wp-json\/wp\/v2\/coauthors?post=675"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nFor power, impedance should always be at a minimum.\u00a0 For DC power delivery, that means low resistance, or as much metal as possible (planes, vias, traces).\u00a0 For AC power delivery, that means very low-inductance connections to a large number and range of decoupling capacitors.\u00a0 This is one of the fundamental differences between signal integrity and power integrity analysis.\u00a0
\nCheck out the article below to find out more:
\nhttp:\/\/electronicdesign.com\/article\/eda\/whats-difference-signal-integrity-power-integrity-73842<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"