{"id":361,"date":"2025-12-01T09:47:06","date_gmt":"2025-12-01T01:47:06","guid":{"rendered":"https:\/\/www.52runoob.com\/?p=361"},"modified":"2025-12-01T09:47:06","modified_gmt":"2025-12-01T01:47:06","slug":"zynq-gt-ip%e8%ae%be%e7%bd%ae%e4%b8%adtermination-voltage%ef%bc%8c%e4%bb%80%e4%b9%88%e6%83%85%e5%86%b5%e9%80%89%e6%8b%a9avtt%e9%80%89%e9%a1%b9","status":"publish","type":"post","link":"https:\/\/www.52runoob.com\/index.php\/2025\/12\/01\/zynq-gt-ip%e8%ae%be%e7%bd%ae%e4%b8%adtermination-voltage%ef%bc%8c%e4%bb%80%e4%b9%88%e6%83%85%e5%86%b5%e9%80%89%e6%8b%a9avtt%e9%80%89%e9%a1%b9\/","title":{"rendered":"zynq GT IP\u8bbe\u7f6e\u4e2dTermination Voltage\uff0c\u4ec0\u4e48\u60c5\u51b5\u9009\u62e9AVTT\u9009\u9879"},"content":{"rendered":"\n<p>\u4e0b\u9762\u7ed9\u4f60<strong>Zynq \/ Zynq Ultrascale+ GT\uff08GTH\/GTY\/GTZ\uff09\u4e2d Termination Voltage\uff1dAVTT \u7684\u6700\u51c6\u786e\u5de5\u7a0b\u7ea7\u89e3\u91ca<\/strong>\uff0c\u5e76\u544a\u8bc9\u4f60<strong>\u5728\u4ec0\u4e48\u60c5\u51b5\u4e0b\u5fc5\u987b\u9009 AVTT<\/strong>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u2705 <strong>\u7ed3\u8bba\u5148\u8bf4\uff1a\u4ec0\u4e48\u65f6\u5019\u9009\u62e9 AVTT\uff1f<\/strong><\/h1>\n\n\n\n<p><strong>\u5f53\u4f60\u7684\u6536\u7aef\u9700\u8981\u4f7f\u7528 On-Chip Termination\uff08OCT\uff09= 100\u03a9 \/ 50\u03a9\uff0c\u4e14\u7ec8\u7aef\u5fc5\u987b\u7531 GT \u5185\u90e8\u63d0\u4f9b\uff08Internal Termination\uff09\uff0c\u5e76\u4e14\u8be5\u7ec8\u7aef\u8981\u6c42\u4f7f\u7528 1.2V\uff08AVTT rail\uff09\u65f6\uff0c\u5c31\u5fc5\u987b\u9009\u62e9 AVTT\u3002<\/strong><\/p>\n\n\n\n<p>\u4e5f\u5c31\u662f\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>\u53ea\u8981\u4f60\u542f\u7528\u4e86 GT RX \u7aef\u7684 Internal Termination\uff08RTERM = INTERNAL \/ 50\u03a9 \/ 100\u03a9\uff09\uff0c\u5c31\u5fc5\u987b\u9009\u62e9 AVTT\u3002<\/strong><\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83e\udde0 \u4e3a\u4ec0\u4e48\u662f AVTT\uff1f<\/h1>\n\n\n\n<p>Zynq \/ Ultrascale+ \u7684\u9ad8\u901f\u6536\u53d1\u5668 GT \u590d\u7528\u4e24\u79cd\u7ec8\u7aef\u4f9b\u7535\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Termination Voltage<\/th><th>\u7535\u538b<\/th><th>\u7528\u9014<\/th><\/tr><\/thead><tbody><tr><td><strong>AVTT<\/strong><\/td><td>~1.2 V<\/td><td>\u63d0\u4f9b RX Input Termination\uff08\u5185\u7f6e 50\u03a9 \/ 100\u03a9\uff09<\/td><\/tr><tr><td><strong>AVCC\/GND \u5916\u90e8\u504f\u7f6e<\/strong><\/td><td>\u5176\u4ed6<\/td><td>\u5916\u90e8\u7f51\u7edc\u6216 AC \u8026\u5408\u60c5\u51b5\u4e0b\u4e0d\u4f9d\u8d56\u5185\u90e8\u7ec8\u7aef<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>GT \u7684\u5185\u90e8\u7ec8\u7aef\uff08Internal Termination \/ Internal Rterm\uff09\u662f\u9760 AVTT\uff081.2V\uff09\u504f\u7f6e\u7684\uff0c\u56e0\u6b64\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>\u5982\u679c\u4f60\u7684 RX \u662f DC \u8026\u5408\uff08DC-coupled\uff09\u5e76\u9700\u8981\u5185\u90e8\u7ec8\u7aef\uff0c\u5219\u5fc5\u987b\u9009 AVTT\u3002<\/strong><\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u2b50 \u5fc5\u987b\u9009 AVTT \u7684\u5178\u578b\u573a\u666f\uff08\u6700\u5e38\u89c1\uff09<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>1. \u8d70\u7ebf\u662f DC-Coupled \u5e76\u542f\u7528\u4e86\u5185\u90e8 100\u03a9 \/ 50\u03a9 \u7ec8\u7aef<\/strong><\/h2>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>JESD204B\/C\uff08\u76f4\u8fde DAC\/ADC\uff09<\/li>\n\n\n\n<li>Aurora\u3001SGMII\u300110G\/25G Ethernet\uff08\u90e8\u5206\u76f4\u8fde\u6a21\u5f0f\uff09<\/li>\n\n\n\n<li>FPGA-to-FPGA GT \u76f4\u8fde\uff08DC\u8026\u5408\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u4e9b\u534f\u8bae\u901a\u5e38\u8981\u6c42\u56fa\u5b9a\u5dee\u6a21 100\u03a9 \u5185\u90e8\u7ec8\u7aef \u2192 \u4f9b\u7535\u6765\u81ea AVTT\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2. \u5bf9\u7aef\u8bbe\u5907\u8981\u6c42 FPGA \u63d0\u4f9b DC \u504f\u7f6e<\/strong><\/h2>\n\n\n\n<p>\u5982\u679c\u5bf9\u7aef PHY \/ SerDes \u8981\u6c42\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u201cFPGA \u5fc5\u987b\u63d0\u4f9b DC bias\u201d<\/li>\n\n\n\n<li>\u201cFPGA MUST present 100\u03a9 differential termination\u201d<\/li>\n\n\n\n<li>\u201cReceiver requires internal RTERM\u201d<\/li>\n<\/ul>\n\n\n\n<p>\u90a3\u4e48\u9009\u62e9 AVTT\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>3. \u901a\u9053\u662f PMA Direct\uff0c\u4e14\u4f60\u6ca1\u6709\u5916\u90e8\u7ec8\u7aef\u7535\u963b<\/strong><\/h2>\n\n\n\n<p>\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>GT \u2192 \u53e6\u4e00\u7247 FPGA SerDes<\/li>\n\n\n\n<li>GT \u2192 \u9ad8\u901f\u8f6c\u6362\u5668 SERDES<\/li>\n<\/ul>\n\n\n\n<p>\u53ea\u8981\u6ca1\u6709\u5916\u63a5\u7ec8\u7aef = \u5fc5\u987b AVTT\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u2757\u4ec0\u4e48\u65f6\u5019\u201c\u4e0d\u9009 AVTT\u201d\uff1f<\/h1>\n\n\n\n<p>\u4ee5\u4e0b\u60c5\u51b5\u53ef\u4ee5\u4e0d\u9009 AVTT\uff1a<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u274c <strong>1. AC Coupling\uff08\u5f71\u5b50\u5e38\u89c1\u8bef\u533a\uff09<\/strong><\/h2>\n\n\n\n<p>\u5982\u679c\u4f60\u4f7f\u7528 AC \u8026\u5408\uff08CML standard compliance\uff09\u7684\u94fe\u8def\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u7aef\u81ea\u5df1\u63d0\u4f9b DC \u504f\u7f6e<\/li>\n\n\n\n<li>\u4f60\u5173\u95ed\u5185\u90e8\u7ec8\u7aef<\/li>\n<\/ul>\n\n\n\n<p>\u90a3\u4e48\u4e0d\u9700\u8981 AVTT\u3002<\/p>\n\n\n\n<p>\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6807\u51c6 10GBASE-KR \/ XAUI with AC coupling<\/li>\n\n\n\n<li>DisplayPort \/ PCIe \/ SATA<\/li>\n\n\n\n<li>\u5927\u90e8\u5206\u9ad8\u901f\u6536\u53d1\u5668\u534f\u8bae\uff08\u81ea\u884c bias\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u6ce8\u610f\uff1a<br><strong>AC coupling \u4e0d\u7b49\u4e8e\u201c\u4e0d\u7528 AVTT\u201d\uff0c\u5173\u952e\u662f\u4f60\u662f\u5426\u6253\u5f00 Internal RTERM\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u274c <strong>2. \u5bf9\u7aef\u5e26\u6709\u5916\u90e8\u7ec8\u7aef\u7535\u963b\uff08\u5982 PHY \u81ea\u5e26\uff09<\/strong><\/h2>\n\n\n\n<p>\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SFP\/\u5149\u6a21\u5757\uff08\u6a21\u5757\u7aef\u63d0\u4f9b\u7ec8\u7aef+\u504f\u7f6e\uff09<\/li>\n\n\n\n<li>\u4ee5\u592a\u7f51 PHY \u81ea\u5e26 termination<\/li>\n<\/ul>\n\n\n\n<p>\u5219\u4f60\u4e0d\u9700\u8981\u5185\u90e8\u7ec8\u7aef \u2192 \u4e0d\u9700\u8981 AVTT\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd27 <strong>\u5de5\u7a0b\u5e08\u7ea7\u5efa\u8bae\uff08\u6700\u9760\u8c31\uff09<\/strong><\/h1>\n\n\n\n<p>\u5728 Vivado GT Wizard \u4e2d\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2714 \u5982\u679c <strong>RX Termination = Internal\uff0850\u03a9 \/ 100\u03a9\uff09<\/strong><\/h3>\n\n\n\n<p>\u2192 <strong>Termination Voltage \u5fc5\u987b\u9009 AVTT<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2714 \u5982\u679c <strong>RX Termination = External\uff08\u7531\u5bf9\u7aef\u63d0\u4f9b\uff09<\/strong><\/h3>\n\n\n\n<p>\u2192 <strong>Termination Voltage \u53ef\u4ee5\u4e0d\u9009 AVTT\uff08\u9ed8\u8ba4\u5373\u53ef\uff09<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udccc \u5982\u679c\u4f60\u628a\u4f60\u7684\u94fe\u8def\u544a\u8bc9\u6211\uff0c\u6211\u53ef\u4ee5\u544a\u8bc9\u4f60\u201c\u9009 AVTT \/ \u4e0d\u9009\u201d\u7684\u6700\u4f73\u914d\u7f6e<\/h1>\n\n\n\n<p>\u8bf7\u544a\u8bc9\u6211\u4f60\u7684\u60c5\u51b5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f60\u7528\u7684 GT \u7c7b\u578b\uff08GTP\/GTH\/GTY\uff1fZynq 7000\uff1fZynq MPSoC\uff1f\uff09<\/li>\n\n\n\n<li>\u901f\u7387\u591a\u5c11\uff08Gbps\uff1f\uff09<\/li>\n\n\n\n<li>AC \u8026\u5408\u8fd8\u662f DC \u8026\u5408\uff1f<\/li>\n\n\n\n<li>\u5bf9\u7aef\u8bbe\u5907\u662f\u4ec0\u4e48\uff08PHY\uff1f\u53e6\u4e00\u7247 FPGA\uff1fADC\uff1fSFP\uff1f\uff09<\/li>\n\n\n\n<li>\u662f\u5426\u9700\u8981 Internal Rterm\uff1f<\/li>\n<\/ul>\n\n\n\n<p>\u6211\u53ef\u4ee5\u7ed9\u4f60\u4e00\u4efd <em>\u7cbe\u786e\u5230\u5f15\u811a\u7ea7\u522b<\/em> \u7684\u914d\u7f6e\u8bf4\u660e\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0b\u9762\u7ed9\u4f60Zynq \/ Zynq Ultrascale+ GT\uff08GTH\/GTY\/G&#8230; <a class=\"more-link\" href=\"https:\/\/www.52runoob.com\/index.php\/2025\/12\/01\/zynq-gt-ip%e8%ae%be%e7%bd%ae%e4%b8%adtermination-voltage%ef%bc%8c%e4%bb%80%e4%b9%88%e6%83%85%e5%86%b5%e9%80%89%e6%8b%a9avtt%e9%80%89%e9%a1%b9\/\">Continue Reading &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-361","post","type-post","status-publish","format-standard","hentry","category-12"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/361","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/comments?post=361"}],"version-history":[{"count":1,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/361\/revisions"}],"predecessor-version":[{"id":362,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/361\/revisions\/362"}],"wp:attachment":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/media?parent=361"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/categories?post=361"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/tags?post=361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}