{"id":2145,"date":"2024-08-07T02:45:16","date_gmt":"2024-08-07T02:45:16","guid":{"rendered":"https:\/\/towa-circuit.co.jp\/?p=2145"},"modified":"2025-01-30T02:50:41","modified_gmt":"2025-01-30T02:50:41","slug":"2024-08-07","status":"publish","type":"post","link":"https:\/\/towa-circuit.co.jp\/en\/2024-08-07\/","title":{"rendered":"Noise-Resistant PCB Design \u2013 Ground and Signal Separation\u301c\u30b0\u30e9\u30f3\u30c9\u3068\u30b7\u30b0\u30ca\u30eb\u306e\u5206\u96e2\u7de8\u301c"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" alt=\"Noise-Resistant PCB Design (PCB) Ground and Signal Separation\" class=\"alignnone size-large wp-image-1110\" src=\"https:\/\/towa-circuit.co.jp\/wp-content\/themes\/towa_circuit original\/img\/m-17tp.jpg\" width=\"1024\" height=\"671\" \/><\/p>\n<p style=\"text-align:center;\">Hello everyone,<br \/>\nThis time, we will discuss key points for <br \/>\u201cNoise-Resistant PCB Design \u2013 Ground and Signal Separation.\u201d<\/p>\n<p style=\"text-align:center;\">Modern electronic devices are becoming increasingly high-performance, and with that, noise issues are also becoming more complex. For designers, noise countermeasures are a critical issue that cannot be ignored.<br \/>\nIn particular, minimizing the effects of electromagnetic interference (EMI) is crucial. EMI occurs when external electromagnetic waves negatively impact the operation of electronic devices, directly affecting product reliability and performance.<br \/>\nNoise countermeasures are essential to creating highly reliable PCB products.<\/p>\n<p style=\"text-align:center;\">In this newsletter, we will explain ground and signal separation in detail. Proper separation of ground and signal helps prevent noise interference between signals and enhances the overall noise resistance of the PCB.<br \/>\nAs a result, electronic device reliability and performance are significantly improved.<\/p>\n<p style=\"text-align:center;\">We will explain specific methods and practical points, so please read until the end. Addressing these issues during the design phase helps prevent problems and ensures product quality.<br \/>\nLet\u2019s continue exploring key noise countermeasures for PCBs.<\/p>\n<p><img decoding=\"async\" alt=\"Four Noise Countermeasures for Noise-Resistant PCBs \u2013 Ground and Signal Separation\" class=\"alignnone size-large wp-image-1110\" src=\"https:\/\/towa-circuit.co.jp\/wp-content\/themes\/towa_circuit original\/img\/m-17pa.jpg\" \/><\/p>\n<p style=\"text-align: center;\">Four key points for designing noise-resistant PCBs<br \/>\nThis time, we introduce ground and signal separation.<\/p>\n<article class=\"b-top\">\n<div class=\"boya\" style=\"padding:0;\">\n<div class=\"f-l\">\n<h3 style=\"border: 2px solid #333; padding: 14px; text-align: center; border-radius: 10px; box-shadow: 2px 2px 2px #333;\">\n          <span style=\"color: #000000;\"><strong>Utilizing Ground Planes<\/strong><\/span><\/h3>\n<\/p><\/div>\n<div class=\"f-r\">\n<h3 style=\"border: 2px solid rgb(0, 0, 0); padding: 12px 0; text-align: center; border-radius: 10px; box-shadow: 2px 2px 2px #333; background-color: orange;\">\n         <span style=\"color: #000000;\"><strong>Ground and Signal Separation<\/strong><\/span><\/h3>\n<\/div>\n<\/article>\n<article class=\"b-top\">\n<div class=\"boya\" style=\"padding:0;\">\n<div class=\"f-l\">\n<h3 style=\"border: 2px solid rgb(0, 0, 0); padding: 2px; text-align: center; border-radius: 10px; box-shadow: 2px 2px 2px #333;\">\n          <span style=\"color: #000000;\"><strong>Ensuring Clearance and Creepage Distance<\/strong><\/span><\/h3>\n<\/p><\/div>\n<div class=\"f-r\">\n<h3 style=\"border: 2px solid rgb(0, 0, 0); padding: 12px 0; text-align: center; border-radius: 10px; box-shadow: 2px 2px 2px #333;\">\n         <span style=\"color: #000000;\"><strong>Proper Selection of Insulation Materials<\/strong><\/span><\/h3>\n<\/div>\n<\/article>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"Practical Design Points for Noise-Resistant PCB Design (PCB) \u2013 Ground and Signal Separation\" class=\"alignnone size-large wp-image-1110\" src=\"https:\/\/towa-circuit.co.jp\/wp-content\/themes\/towa_circuit original\/img\/m-16c.png\" width=\"1024\" height=\"671\" \/><\/p>\n<h3 style=\"text-align: left;background-color:green;padding:20px; margin-top:30px;\">\n<span style=\"color: rgb(255, 255, 255);\"><strong>Ground and Signal Separation<\/strong><\/span><\/h3>\n<article class=\"b-top\" style=\"background-color: #eee;\">\n<div class=\"boya\">\n<div class=\"f-r\">\n<h4 style=\"color: rgb(10, 81, 153);\"><strong>Minimizing the Distance Between Signal Lines and the Ground Plane<\/strong><\/h4>\n<p>High-speed signal lines should be placed close to the ground plane to <span style=\"color:red;\">shorten the return path of the signal.<\/span><br \/>\n         This helps prevent unnecessary noise generation.<\/p>\n<\/p><\/div>\n<div class=\"f-r\">\n<h4 style=\"color: rgb(10, 81, 153);\"><strong>Separation of Analog and Digital Circuits<\/strong><\/h4>\n<p>Physically separate analog and digital circuits and use dedicated ground planes for each.<br \/>\n         This prevents switching noise from digital circuits from affecting analog circuits.<\/p>\n<\/p><\/div>\n<div class=\"f-r\">\n<h4 style=\"color: rgb(10, 81, 153);\"><strong>Placement of Decoupling Capacitors<\/strong><\/h4>\n<p>Decoupling capacitors reduce noise in power lines and stabilize IC operation.<br \/>\n         They are especially important for high-speed digital ICs and analog ICs.<br \/>\n         Using <a href=\"https:\/\/towa-circuit.co.jp\/2024-04-03\/\"><span style=\"color:red;\">DEMITASNX<\/span><\/a> is an effective approach for placement.<\/p>\n<\/p><\/div>\n<\/div>\n<\/article>\n<h1 style=\"text-align:center; padding: 30px 0; font-weight:bold;\">Utilizing Ground Planes<br \/>\n<span style=\"border-bottom: 6px double red; line-height: 2rem;\">Key Points Practiced by Towa Circuit!<\/span><\/h1>\n<p style=\"background-color: rgb(249, 217, 29); padding: 0.5rem; text-align: center;\"><strong>Connect to the Power Pin through a Capacitor<\/strong><\/p>\n<div class=\"16wrap\" style=\"background-color:#eee;\">\n<img decoding=\"async\" alt=\"Connect to the Power Pin through a Capacitor\" class=\"alignnone size-midium wp-image-1110\" src=\"https:\/\/towa-circuit.co.jp\/wp-content\/themes\/towa_circuit original\/img\/m16con.png\" style=\"padding:20px 80px; box-sizing:border-box;\" \/><\/p>\n<p>\u30fbDecoupling capacitors bypass high-frequency components and prevent noise from affecting the power line and antenna.<\/p>\n<p>\u30fbConnecting to the power pin through the capacitor improves the stability of the power line.<\/p>\n<p>\u30fbIt suppresses voltage fluctuations in the power line, providing stable operating voltage.<\/p>\n<\/div>\n<h3 style=\"text-align: left;background-color:green;padding:20px; margin-top:30px;\"><span style=\"color: rgb(255, 255, 255);\"><strong>Aiming for Highly Reliable Electronic Devices<\/strong><\/span><\/h3>\n<p style=\"text-align:center;\">To prevent noise interference in the power line, it is important to use decoupling capacitors. Decoupling capacitors bypass high-frequency components and prevent noise from traveling through the power line and affecting the antenna.<br \/>\nBy connecting to the power pin through the capacitor, the stability of the power line improves, suppressing voltage fluctuations and providing stable operating voltage.<\/p>\n<p style=\"text-align:center;\">By applying these countermeasures, you can achieve noise-resistant PCB design and significantly enhance the reliability and performance of electronic devices.<br \/>\nAddressing these issues during the design phase helps prevent problems and ensures product quality.<\/p>\n<p style=\"text-align:center;\">Next time, we will introduce the importance of ensuring clearance and creepage distance.<br \/>\nStay tuned!<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-large wp-image-1110\" src=\"https:\/\/towa-circuit.co.jp\/wp-content\/themes\/towa_circuit original\/img\/m16next.jpg\" alt=\"Towa Circuit Next Preview\" \/><\/p>\n<h2 style=\"text-align: center; border: 4px double #168f37; padding: 0.3rem; box-shadow: 2px 6px 4px #000; line-height: 1.5em; font-size:1.3rem;\">Next Time&#8230;<br \/><strong>\u2018Ensuring Clearance and Creepage Distance\u2019<\/strong><br \/>We will introduce it.<br \/>Look forward to it~\u2728<\/h2>\n<p><img decoding=\"async\" style=\"margin-bottom: 0;\" src=\"https:\/\/towa-circuit.co.jp\/wp-content\/themes\/towa_circuit original\/img\/kyousin-end.jpg\" alt=\"Towa Circuit Provides Safe and Reliable PCBs.\" \/><\/p>\n<h3 style=\"color: green; text-align: center; font-size: 1.5rem; font-weight: bold;\">We aim to be a trusted partner through sincere work<\/h3>\n<h1 class=\"oubo\"><a href=\"https:\/\/towa-circuit.co.jp\/towanihanasu\/\">For PCB Design, Choose Towa Circuit<\/a><\/h1>\n","protected":false},"excerpt":{"rendered":"<p>Hello everyone, This time, we will discuss key points for \u201cNoise-Resistant PCB Design \u2013 Ground and Signal Separation.\u201d Modern electronic devices are becoming increasingly high-performance, and with that, noise issues are also becoming more complex. For designers, noise countermeasures are a critical issue that cannot be ignored. In particular, minimizing the effects of electromagnetic interference [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1660,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/towa-circuit.co.jp\/?p=1666","footnotes":""},"categories":[10,2,11,7],"tags":[],"class_list":["post-2145","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analog","category-info","category-digital","category-product","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/comments?post=2145"}],"version-history":[{"count":3,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2145\/revisions"}],"predecessor-version":[{"id":2149,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2145\/revisions\/2149"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media\/1660"}],"wp:attachment":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media?parent=2145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/categories?post=2145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/tags?post=2145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}