{"id":4481,"date":"2021-07-07T15:53:41","date_gmt":"2021-07-07T07:53:41","guid":{"rendered":"http:\/\/www.comtest.cn\/?p=4481"},"modified":"2021-07-09T09:14:44","modified_gmt":"2021-07-09T01:14:44","slug":"pcie5-0%e7%94%b5%e6%b0%94%e6%b5%8b%e8%af%95-%e7%94%b5%e6%b0%94%e5%ad%90%e5%b1%82%e5%92%8c%e9%80%bb%e8%be%91%e5%ad%90%e5%b1%82","status":"publish","type":"post","link":"http:\/\/www.comtest.cn\/?p=4481","title":{"rendered":"PCIe5.0\u7535\u6c14\u6d4b\u8bd5\u2014\u7535\u6c14\u5b50\u5c42\u548c\u903b\u8f91\u5b50\u5c42"},"content":{"rendered":"<p>PCIe\u662f\u7528\u4e8e\u786c\u76d8\u3001\u56fa\u6001\u786c\u76d8(SSD)\u3001\u56fe\u5f62\u5361\u3001Wi-Fi\u548c\u5185\u90e8\u4ee5\u592a\u7f51\u8fde\u63a5\u7684\u5148\u8fdb\u4e92\u8fdeI\/O\u6280\u672f\u3002PCIe\u7531\u4e00\u7ec4\u5feb\u901f\u3001\u53ef\u6269\u5c55\u4e14\u53ef\u9760\u7684I\/O\u6807\u51c6\u7ec4\u6210\uff0c\u7528\u4e8e\u4e32\u884c\u6570\u636e\u4f20\u8f93\u603b\u7ebf\u3002PCIe\u7684\u7269\u7406\u5c42(PHY)\u8fd8\u652f\u6301SATA Express(SATAe)\u548c\u975e\u6613\u5931\u6027\u5b58\u50a8\u5668\u89c4\u8303(NVMe)\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe6_\u534f\u8bae\u6808_\u903b\u8f91\u5b50\u5c42\u548c\u7535\u6c14\u5b50\u5c42.jpg\"><img fetchpriority=\"high\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe6_\u534f\u8bae\u6808_\u903b\u8f91\u5b50\u5c42\u548c\u7535\u6c14\u5b50\u5c42.jpg\" alt=\"\" class=\"wp-image-4484\" width=\"390\" height=\"356\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe6_\u534f\u8bae\u6808_\u903b\u8f91\u5b50\u5c42\u548c\u7535\u6c14\u5b50\u5c42.jpg 780w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe6_\u534f\u8bae\u6808_\u903b\u8f91\u5b50\u5c42\u548c\u7535\u6c14\u5b50\u5c42-300x273.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe6_\u534f\u8bae\u6808_\u903b\u8f91\u5b50\u5c42\u548c\u7535\u6c14\u5b50\u5c42-768x700.jpg 768w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe6_\u534f\u8bae\u6808_\u903b\u8f91\u5b50\u5c42\u548c\u7535\u6c14\u5b50\u5c42-600x547.jpg 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe6_\u534f\u8bae\u6808_\u903b\u8f91\u5b50\u5c42\u548c\u7535\u6c14\u5b50\u5c42-64x58.jpg 64w\" sizes=\"(max-width: 390px) 100vw, 390px\" \/><\/a><figcaption>\u56fe6 PCIe\u534f\u8bae\u6808-\u7535\u6c14\u6d4b\u8bd5<\/figcaption><\/figure><\/div><p>PCIe\u6d4b\u8bd5\u7684\u5173\u952e\u8bbe\u5907\u5305\u62ec\u8bef\u7801\u7387\u6d4b\u8bd5\u4eea(BERT)\u548c\u5b9e\u65f6\u793a\u6ce2\u5668\u3002\u7279\u522b\u662fPCIe5.0\u6d4b\u8bd5\uff0c\u8981\u6c42\u4f7f\u7528\u9ad8\u8d28\u91cfBERT\u7684\u8109\u51b2\u7801\u578b\u53d1\u751f\u5668(PPG)\u548cBERT\u7684\u8bef\u7801\u5206\u6790\u4eea(ED)\u3002PPG\u9700\u8981\u80fd\u7cbe\u786e\u751f\u6210\u7279\u5b9a\u635f\u8017\u7684\u4fe1\u53f7\uff0cED\u5e94\u80fd\u591f\u5206\u6790SerDes\u8f93\u51fa\u8bef\u7801\u7387(BER)\u4ee5\u786e\u5b9a\u5f85\u6d4b\u4ef6\u662f\u5426\u7b26\u5408PCIe\u89c4\u8303\u3002<\/p><p>\u5bf9\u4e8e\u6700\u590d\u6742\u7684PCIe5.0\u4e32\u884c\u5668\/\u89e3\u4e32\u5668(SerDes)\u6d4b\u8bd5\uff0c\u5982\u94fe\u8def\u5747\u8861\u8bad\u7ec3\uff0c\u8bef\u7801\u4eea\u9700\u8981\u80fd\u591f\u6a21\u62dfSerDes\u3002PPG\u548cED\u5fc5\u987b\u5728PCIe5.0\u534f\u8bae\u6808\u4e0b\u7684\u7269\u7406\u903b\u8f91\u5b50\u5c42\u4e0e\u88ab\u6d4b\u8bbe\u5907(DUT)\u8fdb\u884c\u4ea4\u4e92\uff08\u89c1\u56fe6\uff09\uff0c\u4e5f\u5c31\u662f\u8bf4\u8bef\u7801\u4eea\u9700\u8981\u5177\u5907\u4e00\u5b9a\u7a0b\u5ea6\u7684\u534f\u8bae\u4ea4\u4e92\u529f\u80fd\u3002\u65e0\u8bba\u662f\u8981\u8fdb\u884c\u53d1\u7aef\u8fd8\u662f\u63a5\u6536\u7aef\u6d4b\u8bd5\uff0cSerDes\u90fd\u4f1a\u6d89\u53ca\u5230\uff1b\u4e3a\u4e86\u6e05\u695a\u5730\u533a\u5206\uff0c\u6211\u4eec\u5206\u522b\u7528\u201cDUT-\u53d1\u7aef\u201d\u548c\u201cDUT-\u6536\u7aef\u201d\u4ee3\u66ffDUT-SerDes\u3002<\/p><h2 class=\"wp-block-heading\">PCIe Gen5.0\u6d4b\u8bd5\u65b9\u6848<\/h2><figure class=\"wp-block-image size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe\u72472.png\"><img decoding=\"async\" width=\"1024\" height=\"422\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe\u72472-1024x422.png\" alt=\"\" class=\"wp-image-4487\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe\u72472-1024x422.png 1024w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe\u72472-300x124.png 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe\u72472-768x316.png 768w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe\u72472-1536x633.png 1536w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe\u72472-2048x843.png 2048w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe\u72472-600x247.png 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe\u72472-64x26.png 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption>\u88682 \u6d4b\u8bd5\u65b9\u6848\u914d\u7f6e\u8868<\/figcaption><\/figure><p><strong>\u65b9\u6848\u6784\u6210<\/strong><\/p><p>\u8be5\u65b9\u6848\u53d1\u9001\u7aef\u6d4b\u8bd5\u4f7f\u7528\u4e24\u53f059G\u793a\u6ce2\u5668\u52a0\u4e00\u53f020G\u793a\u6ce2\u5668\uff0c\u5206\u522b\u7528\u6765\u6d4b\u8bd5PCIE5.0\uff082\u53f059G\u5408\u5e76\uff09,PCIe4\/3, USB, SAS, SATA\u7b49\u7b49\u9ad8\u901f\u4e32\u884c\u4fe1\u53f7\uff0c\u540c\u65f6\u8fd8\u53ef\u4ee5\u4e0e\u8bef\u7801\u4eea\u914d\u5408\u8fdb\u884cRX\u6821\u9a8c\uff0c\u53ef\u4ee5\u6700\u5927\u7a0b\u5ea6\u7684\u63d0\u9ad8\u8bbe\u5907\u5229\u7528\u7387\uff0c\u89e3\u51b3\u9879\u76ee\u6d4b\u8bd5\u538b\u529b\u3002\u53ef\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u589e\u51cf\u793a\u6ce2\u5668\u6570\u91cf\u3002<\/p><p>\u8be5\u65b9\u6848\u63a5\u6536\u7aef\u6d4b\u8bd5\u91c7\u7528\u76ee\u524d\u5148\u8fdb\u7684\u8bef\u7801\u4eeaAnritsu MP1900A\u3002\u7531\u4e8e\u5176\u4f18\u5f02\u7684\u786c\u4ef6\u6027\u80fd\uff0c\u4f7f\u5f97\u4ed6\u901a\u8fc7\u4e86\u76ee\u524d\u6240\u6709PCIE\u7684\u53caUSB,SAS\u534f\u4f1a\u7684\u4e00\u81f4\u6027\u6d4b\u8bd5\u65b9\u6848\u8ba4\u8bc1\u3002\u5b9e\u73b0\u4e00\u7ad9\u5f0f\u6d4b\u8bd5\uff0c\u4e0d\u9700\u8981\u8fdb\u884c\u591a\u5e73\u53f0\u7684\u529f\u80fd\u4fee\u8865\u3002Anritsu\u516c\u53f8\u672a\u6765\u4f1a\u57fa\u4e8e\u8be5\u5e73\u53f0\u8fdb\u884c\u66f4\u591a\u4e0b\u4e00\u4ee3\u9ad8\u901f\u63a5\u53e3\u7684\u4e00\u81f4\u6027\u6d4b\u8bd5\u5f00\u53d1\u3002\u6240\u4ee5\u8be5\u5e73\u53f0\u5177\u6709\u5f3a\u65f6\u6548\u3001\u5148\u8fdb\u6027\u3001\u517c\u5bb9\u6027\u53ca\u53ef\u5347\u7ea7\u6027\u3002<\/p><p><strong>\u4f18\u52bf<\/strong><strong><\/strong><\/p><ul class=\"wp-block-list\"><li>\u884c\u4e1a\u8ba4\u53ef\u5ea6\u9ad8\uff0c\u4e0e\u4e0a\u4e0b\u6e38\u5382\u5546\u534f\u540c\u6d4b\u8bd5\u65f6\u66f4\u6613\u4fdd\u6301\u4e00\u81f4\u6027\u2014\u2014Intel\u5168\u7403\u3001AMD (\u52a0\u62ff\u5927\/\u7f8e\u56fd)\u3001Amazon\/\u5fae\u8f6f\/\u82f9\u679c\u3001\u9ad8\u901a\u7b49\u5ba2\u6237\u3002<\/li><li>RX\u8bef\u7801\u4eea\u7248\u672c\u65b0\uff0c\u4e00\u81f4\u6027\u6d4b\u8bd5\u65b9\u6848\u5168\u9762\uff0c\u6613\u5347\u7ea7\u2014\u2014RX\u90e8\u5206\u53ef\u4ee5\u4e00\u53f0\u8bef\u7801\u4eea\u8986\u76d6\u6240\u6709PCIe1~5\u7684\u6d4b\u8bd5\u9700\u6c42\u3002\u5e76\u4e14\u652f\u6301PAM4\u6d4b\u8bd5, \u652f\u6301\u5347\u7ea7PCIe6\u6d4b\u8bd5\u65b9\u6848\u3002<\/li><li>\u8bef\u7801\u4eea\u6280\u672f\u6307\u6807\u4f18\u5f02\u3002<\/li><li>\u6574\u4f53\u65b9\u6848\u8fde\u63a5\u7b80\u4fbf\uff0c\u53ef\u9760\u6027\u9ad8\u3002<\/li><\/ul><h2 class=\"wp-block-heading\">\u6d4b\u8bd5\u80fd\u529b<\/h2><h3 class=\"wp-block-heading\">\u94fe\u8def\u8bad\u7ec3<\/h3><p>\u94fe\u8def\u8bad\u7ec3\u8981\u6c42\u6536\u7aef\u4e0e\u5904\u4e8ePCIe\u534f\u8bae\u6808\u7269\u7406\u5c42\u7684\u7535\u6c14\u5b50\u5c42\u548c\u903b\u8f91\u5b50\u5c42\u7684\u53d1\u7aef\u8fdb\u884c\u901a\u4fe1\uff0c\u81ea\u9002\u5e94\u5747\u8861\u65b9\u6848\u901a\u8fc7\u94fe\u8def\u8bad\u7ec3\u72b6\u6001\u548c\u72b6\u6001\u673a(LTSSM)\u8fdb\u884c\u5de5\u4f5c\uff0c\u5982\u56fe7\u6240\u793a\uff0cLTSSM\u5c06\u7cfb\u7edf\u914d\u7f6e\u4e3a\u4ee5\u53ef\u80fd\u7684\u6700\u5927\u6570\u636e\u901f\u7387\u5de5\u4f5c\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe7_LTSSM\u72b6\u6001\u673a.jpg\"><img decoding=\"async\" width=\"550\" height=\"504\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe7_LTSSM\u72b6\u6001\u673a.jpg\" alt=\"\" class=\"wp-image-4488\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe7_LTSSM\u72b6\u6001\u673a.jpg 550w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe7_LTSSM\u72b6\u6001\u673a-300x275.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe7_LTSSM\u72b6\u6001\u673a-64x59.jpg 64w\" sizes=\"(max-width: 550px) 100vw, 550px\" \/><\/a><figcaption><strong>\u56fe7. \u63a7\u5236\u81ea\u9002\u5e94\u5747\u8861\u7684LTSSM<\/strong><\/figcaption><\/figure><\/div><p>\u4ece\u4e0a\u7535\u5f00\u59cb\uff0cLTSSM\u4f1a\u7ecf\u5386\u4ee5\u4e0b\u9636\u6bb5\uff1a<\/p><ol class=\"wp-block-list\" type=\"1\"><li>\u68c0\u6d4b\uff1a\u63a5\u6536\u673a\u68c0\u6d4b\u6536\u5230\u7684\u53d1\u7aef\u4fe1\u53f7\u3002\u4e0a\u7535\u5f00\u59cb\uff0c\u53d1\u7aef\u4ee52.5GT\/s\u7684\u901f\u5ea6\u53d1\u9001PCIe1.0\u4fe1\u53f7\u3002<\/li><li>\u8f6e\u8be2\uff1a\u63a5\u6536\u673a\u540c\u6b65\u6ce2\u5f62\u5e76\u786e\u5b9a\u4f4d\u901f\u7387\u548c\u6781\u6027\u3002<\/li><li>\u914d\u7f6e\uff1a\u786e\u5b9a\u901a\u9053\u5bbd\u5ea6\uff0c\u5373PCIe\u4fe1\u9053\u6570\u3002<\/li><li>L0\uff1a\u542f\u7528\u94fe\u8def\u8bad\u7ec3\u3002<\/li><li>\u6062\u590d\uff1a\u53d1\u7aef\u6309\u7167\u6839\u636e\u9884\u8bbe\u7684FFE tap\u6216\u8005\u6839\u636e\u4e0a\u4e00\u5de5\u4f5c\u72b6\u6001\u4f18\u5316\u7684\u4e00\u7ec4tap\u5de5\u4f5c\u3002\u4e0a\u7535\u65f6\uff0c\u5b83\u5728\u6ca1\u6709FFE\u7684\u60c5\u51b5\u4e0b\u5de5\u4f5c\uff0c\u8fd9\u7b49\u540c\u4e8e\u5c06\u6240\u6709tap\u8bbe\u4e3a1\u3002PCIe2.0\u6709\u4e24\u7ec4preset\uff0cPCIe3.0\u670910\u7ec4preset\uff0cPCIe4.0\u548c5.0\u90fd\u670911\u7ec4preset\uff0c\u4f9d\u6b21\u6807\u4e3aP0\u3001P1\u3001&#8230;P10\u3002<\/li><li>\u73af\u56de\uff1a\u6536\u7aef\u4f7f\u7528\u5185\u7f6e\u7684\u7cfb\u7edf\u6d4b\u8bd5\u529f\u80fd\uff0c\u4f8b\u5982CRC\uff0c\u6765\u68c0\u67e5\u8bad\u7ec3\u5e8f\u5217\u540c\u6b65\u4fe1\u53f7\u7684BER\u6027\u80fd\u3002<ol><li>\u5982\u679cBER\u6027\u80fd\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\uff0c\u5e76\u4e14\u7cfb\u7edf\u4ee5\u4f4e\u4e8ePCIe5.0\u7684\u901f\u7387\uff08\u537332GT\/s\uff09\u8fd0\u884c\uff0c\u5219\u6536\u7aef\u5411\u53d1\u7aef\u53d1\u9001\u8bf7\u6c42\u4ee5\u63d0\u9ad8\u6570\u636e\u901f\u7387\uff0c\u6362\u8a00\u4e4b\uff0c\u4ecePCIe n\u5347\u7ea7\u5230PCIe n+1\uff0c\u7136\u540e\uff0c\u63a5\u6536\u5668\u8fd4\u56de\u5230\u68c0\u6d4b\u9636\u6bb5\u3002<\/li><li>\u5982\u679cBER\u6027\u80fd\u4e0d\u53ef\u63a5\u53d7\uff0c\u4f46\u662f\u94fe\u8def\u8bad\u7ec3\u65f6\u95f4\u672a\u8d85\u8fc7\u6700\u5927\u65f6\u9650\uff0c\u5219\u4f1a\u53d1\u751f\u4ee5\u4e0b\u4e00\u79cd\u6216\u591a\u79cd\u60c5\u5f62\uff1a<ol><li>\u6536\u7aef\u53d1\u9001\u8bf7\u6c42\uff0c\u8bf7\u6c42\u53d1\u7aef\u53d1\u9001\u4e0d\u540c\u7684FFE tap\uff1a\u9012\u589e\u3001\u9012\u51cf\u3001\u4fdd\u6301\u4e0d\u53d8\u6216\u52a0\u8f7d\u53e6\u4e00\u4e2a\u9884\u8bbe\u3002<\/li><li>\u6536\u7aef\u4fee\u6539\u81ea\u5df1\u7684\u5747\u8861\u65b9\u6848\uff0c\u4f8b\u5982\uff0c\u8c03\u6574CTLE\u589e\u76ca\u548c\/\u6216DFE tap\uff0c\u4f46\u8bf7\u6ce8\u610f\uff0cPCIe\u4ec5\u6307\u5b9a\u63a5\u6536\u5668\u7684BER\u6027\u80fd\uff0c\u800c\u4e0d\u6307\u5b9a\u5747\u8861\u6280\u672f\u3002<\/li><li>\u7136\u540e\uff0c\u7cfb\u7edf\u8fd4\u56de\u5230\u6062\u590d\u9636\u6bb5\u3002<\/li><\/ol><\/li><\/ol><\/li><li>\u5982\u679c\u94fe\u8def\u8bad\u7ec3\u65f6\u95f4\u8d85\u8fc7\u4e86\u6700\u5927\u65f6\u9650\uff0c\u5e76\u4e14\u63a5\u6536\u5668\u5c1a\u672a\u627e\u5230\u4e00\u79cd\u5747\u8861\u65b9\u6848\u4ee5\u4f7f\u5b83\u80fd\u4ee5\u6700\u5927\u5141\u8bb8BER\u6216\u66f4\u9ad8\u7684BER\u5de5\u4f5c\uff0c\u6216\u8005\u63a5\u6536\u5668\u5931\u53bb\u540c\u6b65\uff0c\u5219\u7cfb\u7edf\u5c06\u6062\u590d\u4e3a\u8f83\u4f4e\u7684\u6570\u636e\u901f\u7387\u3002<\/li><\/ol><p>\u5728\u53d1\u7aef\u5747\u8861\u6d4b\u8bd5\u65f6\uff0cBERT ED\u5145\u5f53\u73af\u56de\u6a21\u5f0f\u5de5\u4f5c\u7684\u53c2\u8003\u63a5\u6536\u5668\u3002\u5b83\u6307\u793aBERT PPG\u5411DUT-\u53d1\u7aef\u53d1\u9001\u5bf9\u4e0d\u540cpreset\u7684\u8bf7\u6c42\u3002\u793a\u6ce2\u5668\u6355\u83b7\u5e76\u5206\u6790\u53d1\u7aef\u7684\u6ce2\u5f62\u3002<\/p><p>\u5728\u63a5\u6536\u6d4b\u8bd5\u65f6\uff0cBERT PPG\u5145\u5f53\u53c2\u8003\u53d1\u5c04\u673a\u3002\u53c2\u8003\u53d1\u5c04\u673a\u901a\u8fc7ISI\u6d4b\u8bd5\u677f\u5c06\u8870\u51cf\u5e45\u5ea6\u6700\u5927\u7684\u4fe1\u53f7\u53d1\u9001\u5230DUT-\u6536\u7aef\u3002\u5728\u9636\u6bb51\u4e2d\uff0c\u5b83\u53d1\u9001\u57fa\u4e8e\u534f\u8bae\u7684\u8bad\u7ec3\u5e8f\u5217\uff0c\u5c06\u901f\u7387\u3001\u6781\u6027\u548c\u914d\u7f6e\u4f20\u8fbe\u7ed9DUT-\u63a5\u6536\u5668\u3002\u5230\u4e86\u9636\u6bb55\uff0c\u5904\u4e8e\u73af\u56de\u6a21\u5f0f\u7684DUT\u53d1\u9001FFE tap\u8bf7\u6c42\uff1bBERT PPG\u63a5\u6536\u5e76\u89e3\u91ca\u8fd9\u4e9b\u6d88\u606f\uff0c\u5e76\u76f8\u5e94\u5730\u4fee\u6539\u5176FFE\u65b9\u6848\u3002<strong><\/strong><\/p><h3 class=\"wp-block-heading\">\u53d1\u7aef\u94fe\u8def\u5747\u8861\u6d4b\u8bd5<\/h3><p>\u53d1\u7aef\u6d4b\u8bd5\u9700\u8981\u7528\u5230PCI-SIG\u63d0\u4f9b\u7684SigTest\u3002\u56fe8\u663e\u793a\u4e86CEM\u6216BASE\u6d4b\u8bd5\u56fe\u3002\u5728CEM\u6d4b\u8bd5\u4e2d\uff0cDUT\u65e2\u5305\u62ecSerDes\uff0c\u4e5f\u5305\u62ec\u5b89\u88c5DUT\u7684\u63d2\u5361\u3002\u5728BASE\u6d4b\u8bd5\u4e2d\uff0cDUT\u53ea\u5305\u542bSerDes\u672c\u8eab\uff0c\u5e76\u4e14\u5b89\u88c5\u5728\u7cfb\u7edf\u677f\u4e0a\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe8_\u6807\u79f0PCIe5.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"384\" height=\"222\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe8_\u6807\u79f0PCIe5.jpg\" alt=\"\" class=\"wp-image-4489\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe8_\u6807\u79f0PCIe5.jpg 384w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe8_\u6807\u79f0PCIe5-300x173.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe8_\u6807\u79f0PCIe5-64x37.jpg 64w\" sizes=\"(max-width: 384px) 100vw, 384px\" \/><\/a><figcaption><strong>\u56fe8. \u6807\u79f0PCIe5.0\u4fe1\u9053<\/strong><\/figcaption><\/figure><\/div><p><strong>\u521d\u59cb\u53d1\u5c04\u5668\u5747\u8861\u6d4b\u8bd5<\/strong><\/p><p>BERTPPG\u901a\u8fc7PCIe\u7269\u7406\u5c42\u903b\u8f91\u5b50\u5757\u534f\u8bae\u5c06\u8bf7\u6c42\u53d1\u9001\u5230DUT-\u53d1\u7aef\uff08\u56fe9\uff09\u3002BERTPPG\u6309\u7167\u6bcf\u4e2aPCIe\u6570\u636e\u901f\u7387\u4e0b\u7684FFE\u9884\u8bbe\u4f9d\u6b21\u5411DUT-SerDes\u53d1\u9001\u8bf7\u6c42\u3002DUT-\u53d1\u7aef\u4fee\u6539\u5176FFE\u65b9\u6848\u5e76\u53d1\u5c04\u4fe1\u53f7\u3002DUT-\u53d1\u7aef\u8f93\u51fa\u4fe1\u53f7\u88ab\u5206\u6210\u4e24\u8def\uff0c\u4ee5\u4fbf\u5176\u4fe1\u53f7\u540c\u65f6\u53d1\u9001\u5230\u793a\u6ce2\u5668\u548cBERT ED\u3002BERT ED\u4f5c\u4e3a\u53c2\u8003\u63a5\u6536\u5668\u786e\u8ba4\u9884\u8bbe\u53d8\u5316\uff0c\u800cBERT\u4f7f\u7528PPG\u8f85\u52a9\u8f93\u51fa\u89e6\u53d1\u793a\u6ce2\u5668\u6355\u83b7\u6bcf\u4e2a\u4fe1\u53f7\u3002\u793a\u6ce2\u5668\u6309\u7167\u6bcf\u4e2aFFE\u9884\u8bbe\u548c\u6bcf\u4e2a\u6570\u636e\u901f\u7387\u6355\u83b7\u6ce2\u5f62\uff0c\u7136\u540e\u8fd0\u884c\u5b89\u88c5\u5728\u793a\u6ce2\u5668\u4e0a\u7684SigTest\u3002SigTest\u4f1a\u8bc4\u5224\u6bcf\u4e2a\u6ce2\u5f62\u662f\u5426\u7b26\u5408\u89c4\u8303\u5e76\u7ed9\u51fa\u7ed3\u679c\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe9_\u521d\u59cb\u53d1\u5c04\u5668\u5747\u8861.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe9_\u521d\u59cb\u53d1\u5c04\u5668\u5747\u8861.jpg\" alt=\"\" class=\"wp-image-4490\" width=\"656\" height=\"304\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe9_\u521d\u59cb\u53d1\u5c04\u5668\u5747\u8861.jpg 875w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe9_\u521d\u59cb\u53d1\u5c04\u5668\u5747\u8861-300x139.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe9_\u521d\u59cb\u53d1\u5c04\u5668\u5747\u8861-768x355.jpg 768w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe9_\u521d\u59cb\u53d1\u5c04\u5668\u5747\u8861-600x278.jpg 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe9_\u521d\u59cb\u53d1\u5c04\u5668\u5747\u8861-64x30.jpg 64w\" sizes=\"(max-width: 656px) 100vw, 656px\" \/><\/a><figcaption><strong>\u56fe9. \u521d\u59cb\u53d1\u5c04\u5668\u5747\u8861\u6d4b\u8bd5\u88c5\u7f6e<\/strong><\/figcaption><\/figure><\/div><p><strong>\u53d1\u7aef\u94fe\u8def\u5747\u8861\u54cd\u5e94\u6d4b\u8bd5<\/strong><\/p><p>\u53d1\u7aef\u94fe\u8def\u5747\u8861\u54cd\u5e94\u6d4b\u8bd5\u6d4b\u91cfDUT-\u53d1\u7aef\u54cd\u5e94FFE tap\u8bf7\u6c42\u6240\u82b1\u8d39\u7684\u65f6\u95f4\uff0c\u5e76\u786e\u5b9a\u54cd\u5e94\u662f\u5426\u6b63\u786e\u3002BERT\u5145\u5f53\u73af\u56de\u6a21\u5f0f\u4e0b\u7684\u53c2\u8003SerDes\u3002\u793a\u6ce2\u5668\u786e\u5b9a\u8bf7\u6c42\u7684\u65f6\u95f4tReq\u548cFFE tap\u53d8\u5316\u7684\u65f6\u95f4tChange\u3002tChange-tReq\u5fc5\u987b\u5c0f\u4e8e\u6216\u7b49\u4e8e\u6307\u5b9a\u7684\u6700\u5927\u503c\uff0cBASE\u89c4\u5b9a\u4e3a500ns\uff0cCEM\u89c4\u5b9a\u4e3a1\u00b5s\u3002\u56fe10\u663e\u793a\u4e86\u6d4b\u8bd5\u8bbe\u7f6e\u3002BERTPPG\u5dee\u5206\u8f93\u51fa\u4fe1\u53f7\u4e00\u5206\u4e3a\u4e8c\uff0c\u5206\u522b\u5c06\u4fe1\u53f7\u4f20\u8f93\u5230DUT-\u6536\u7aef\u548c\u793a\u6ce2\u5668\u3002DUT-\u53d1\u7aef\u8f93\u51fa\u4e5f\u5206\u4e3a\u4e24\u8def\uff0c\u5206\u522b\u5c06\u4fe1\u53f7\u53d1\u9001\u5230\u793a\u6ce2\u5668\u548c\u4f5c\u4e3a\u53c2\u8003\u63a5\u6536\u5668\u7684BERT ED\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe10_\u53d1\u5c04\u5668\u94fe\u8def\u5747\u8861\u54cd\u5e94.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe10_\u53d1\u5c04\u5668\u94fe\u8def\u5747\u8861\u54cd\u5e94-1024x498.jpg\" alt=\"\" class=\"wp-image-4491\" width=\"768\" height=\"374\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe10_\u53d1\u5c04\u5668\u94fe\u8def\u5747\u8861\u54cd\u5e94-1024x498.jpg 1024w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe10_\u53d1\u5c04\u5668\u94fe\u8def\u5747\u8861\u54cd\u5e94-300x146.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe10_\u53d1\u5c04\u5668\u94fe\u8def\u5747\u8861\u54cd\u5e94-768x374.jpg 768w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe10_\u53d1\u5c04\u5668\u94fe\u8def\u5747\u8861\u54cd\u5e94-600x292.jpg 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe10_\u53d1\u5c04\u5668\u94fe\u8def\u5747\u8861\u54cd\u5e94-64x31.jpg 64w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe10_\u53d1\u5c04\u5668\u94fe\u8def\u5747\u8861\u54cd\u5e94.jpg 1429w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/a><figcaption><strong>\u56fe10. \u53d1\u5c04\u5668\u94fe\u8def\u5747\u8861\u54cd\u5e94\u6d4b\u8bd5\u88c5\u7f6e<\/strong><\/figcaption><\/figure><\/div><p>\u6d4b\u8bd5\u4eceBERTPPG\u5411DUT-\u53d1\u5c04\u5668\u53d1\u9001\u9884\u8bbe\u8bf7\u6c42\u5f00\u59cb\uff0c\u4e5f\u5c31\u662f\u4ecePHY\u5c42\u903b\u8f91\u5b50\u5757\u4e2d\u7684\u534f\u5546\u5f00\u59cb\u3002DUT\u901a\u8fc7\u66f4\u6539\u5176FFEtap\u505a\u51fa\u54cd\u5e94\u3002\u793a\u6ce2\u5668\u8fd8\u5c06\u63a5\u6536\u5e76\u5fc5\u987b\u80fd\u591f\u8bc6\u522b\u9884\u8bbe\u8bf7\u6c42\u624d\u80fd\u6d4b\u91cftReq\uff1b\u4ece\u8fd9\u4e2a\u610f\u4e49\u4e0a\u8bf4\uff0c\u793a\u6ce2\u5668\u5fc5\u987b\u5177\u6709\u67d0\u79cd\u534f\u8bae\u529f\u80fd\u3002\u793a\u6ce2\u5668\u4e5f\u53ef\u4ee5\u901a\u8fc7\u89e6\u53d1\u4fe1\u53f7\u6765\u786e\u5b9atReq\uff0c\u4f46\u662f\u7531\u4e8e\u89e6\u53d1\u7535\u7f06\u7684\u65f6\u95f4\u5ef6\u8fdf\uff0c\u8fd9\u79cd\u65b9\u6cd5\u589e\u52a0\u4e86\u6d4b\u91cf\u7684\u4e0d\u786e\u5b9a\u6027\u3002\u56fe11\u662f\u793a\u6ce2\u5668\u5c4f\u5e55\u622a\u56fe\uff0c\u5176\u4e2d\u91d1\u8272\u8868\u793aBERTPPG\u8f93\u51fa\uff0c\u84dd\u8272\u8868\u793aDUT-\u53d1\u7aef\u4fe1\u53f7\u3002DUT-\u53d1\u5c04\u5668FFE\u9884\u8bbe\u53d8\u5316\u65f6\u95f4tChange\u5341\u5206\u660e\u663e\u3002\u793a\u6ce2\u5668\u901a\u8fc7\u6807\u8bb0\u63a5\u6536\u5305\u542b\u8bf7\u6c42\u7684\u6570\u636e\u5305\u7684\u65f6\u95f4\u6765\u786e\u5b9atReq\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe11_\u793a\u6ce2\u5668\u7684\u5c4f\u5e55\u622a\u56fe.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe11_\u793a\u6ce2\u5668\u7684\u5c4f\u5e55\u622a\u56fe.jpg\" alt=\"\" class=\"wp-image-4492\" width=\"442\" height=\"338\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe11_\u793a\u6ce2\u5668\u7684\u5c4f\u5e55\u622a\u56fe.jpg 883w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe11_\u793a\u6ce2\u5668\u7684\u5c4f\u5e55\u622a\u56fe-300x229.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe11_\u793a\u6ce2\u5668\u7684\u5c4f\u5e55\u622a\u56fe-768x587.jpg 768w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe11_\u793a\u6ce2\u5668\u7684\u5c4f\u5e55\u622a\u56fe-600x459.jpg 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe11_\u793a\u6ce2\u5668\u7684\u5c4f\u5e55\u622a\u56fe-64x49.jpg 64w\" sizes=\"(max-width: 442px) 100vw, 442px\" \/><\/a><figcaption>\u56fe<strong>11. \u793a\u6ce2\u5668\u7684\u5c4f\u5e55\u622a\u56fe\uff0c\u91d1\u8272\u8868\u793aBERTPPG\u7684\u8f93\u51fa\uff0c\u84dd\u8272\u8868\u793aDUT-\u53d1\u7aef\u7684\u8f93\u51fa<\/strong><\/figcaption><\/figure><\/div><p><\/p><h3 class=\"wp-block-heading\">\u63a5\u6536\u673a\u94fe\u8def\u5747\u8861\u6d4b\u8bd5<\/h3><p>PCIe5.0\u63a5\u6536\u673a\u4ec5\u5728\u7269\u7406\u5c42\u7ea7\u522b\u8fdb\u884c\u4e00\u81f4\u6027\u89c4\u8303\u6d4b\u8bd5\uff1a\u901a\u8fc7\u5728\u94fe\u8def\u5747\u8861\u6d4b\u8bd5\u4e2d\u4f7f\u7528\u52a0\u538b\u4fe1\u53f7\uff0c\u540c\u65f6\u8bc4\u4f30\u94fe\u8def\u8bad\u7ec3\u548c\u52a0\u538b\u538b\u63a5\u6536\u673a\u5bb9\u9650\u3002<\/p><p>BERT PPG\u4f20\u8f93\u5305\u62ec\u6296\u52a8\u548c\u5e72\u6270\u7684\u6d4b\u8bd5\u4fe1\u53f7\uff1a\u968f\u673a\u6296\u52a8(RJ)\u3001\u6b63\u5f26\u6296\u52a8(SJ)\u3001\u6b63\u5f26\u5dee\u6a21\u5e72\u6270(DMI)\u548c\u5171\u6a21\u5e72\u6270(CMI)\u3002\u4e00\u4e2a\u201c\u53ef\u53d8ISI\u201d\u6d4b\u8bd5\u677f\u5177\u6709\u591a\u4e2a\u5dee\u5206\u8ff9\u7ebf\u957f\u5ea6\uff0c\u635f\u8017\u4ee50.5dB\u4e3a\u6b65\u957f\u4ecb\u4e8e34\u523037dB\u4e4b\u95f4\uff0c\u9002\u7528\u4e8e\u4e0d\u540c\u7a0b\u5ea6\u7684\u635f\u8017\u548cISI\u3002\u793a\u6ce2\u5668\u7528\u4e8e\u6821\u51c6\u6d4b\u8bd5\u4fe1\u53f7\u3002<\/p><p>\u63a5\u6536\u673a\u538b\u529b\u5bb9\u9650\u6d4b\u8bd5\u7684\u6982\u5ff5\u662f\u8ba9DUT-\u6536\u7aef\u80fd\u591f\u9002\u5e94\u7b26\u5408\u89c4\u8303\u7684\u6700\u5dee\u4fe1\u53f7\u3002DUT-SerDes\u5fc5\u987b\u80fd\u591f\u4f7f\u7528\u6b64\u6700\u5927\u52a0\u538b\u4fe1\u53f7\u6765\u8bad\u7ec3\u94fe\u8def\u3002\u94fe\u8def\u7ecf\u8fc7\u8bad\u7ec3\uff0c\u5e76\u4e14\u53d1\u7aefFFE\u548c\u63a5\u6536\u5668\u5747\u8861\u65b9\u6848\u5f97\u5230\u4f18\u5316\u540e\uff0cDUT-\u6536\u7aef\u5c31\u4e00\u5b9a\u80fd\u4ee5BER\u226410<sup>-12<\/sup>\u7684\u6761\u4ef6\u5de5\u4f5c\u3002<\/p><p>\u56fe12\u663e\u793a\u4e86\u6d4b\u8bd5\u88c5\u7f6e\u3002BERTPPG\u5c06\u6ce8\u5165\u5e72\u6270\u566a\u58f0\u7684\u4fe1\u53f7\u53d1\u9001\u5230\u53ef\u53d8ISI\u677f\u3002\u53ef\u53d8ISI\u677f\u7684\u8f93\u51fa\u8fde\u63a5\u5230CBB\uff0cCBB\u6a21\u62df\u7cfb\u7edf\u677f\u5728\u6700\u574f\u60c5\u51b5\u4e0b\u7684\u6027\u80fd\u3002\u6d4b\u8bd5\u4fe1\u53f7\u901a\u8fc7CBB\u4f20\u64ad\u5230CEM\u8fde\u63a5\u5668\uff0c\u5e76\u6cbf\u7740\u63d2\u5361\u5411\u4e0a\u5230\u8fbeDUT-\u63a5\u6536\u7aef\u3002\u6ce8\u610f\uff0cBERTPPG\u901a\u8fc7\u53c2\u8003\u65f6\u949f\u5bf9\u4fe1\u53f7\u65bd\u52a0\u6296\u52a8\u3002DUT-\u53d1\u7aef\u7684\u8f93\u51fa\u53d1\u9001\u5230BERTED\uff0cBERTED\u65e2\u8981\u6d4b\u91cfBER\uff0c\u53c8\u5145\u5f53\u53c2\u8003\u63a5\u6536\u5668\u6765\u8bad\u7ec3\u94fe\u8def\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe12_PCIe5.0-CEM\u63d2\u5361\u63a5\u6536\u673a\u94fe\u8def\u5747\u8861.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe12_PCIe5.0-CEM\u63d2\u5361\u63a5\u6536\u673a\u94fe\u8def\u5747\u8861-1024x295.jpg\" alt=\"\" class=\"wp-image-4493\" width=\"768\" height=\"221\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe12_PCIe5.0-CEM\u63d2\u5361\u63a5\u6536\u673a\u94fe\u8def\u5747\u8861-1024x295.jpg 1024w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe12_PCIe5.0-CEM\u63d2\u5361\u63a5\u6536\u673a\u94fe\u8def\u5747\u8861-300x86.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe12_PCIe5.0-CEM\u63d2\u5361\u63a5\u6536\u673a\u94fe\u8def\u5747\u8861-768x221.jpg 768w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe12_PCIe5.0-CEM\u63d2\u5361\u63a5\u6536\u673a\u94fe\u8def\u5747\u8861-600x173.jpg 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe12_PCIe5.0-CEM\u63d2\u5361\u63a5\u6536\u673a\u94fe\u8def\u5747\u8861-64x18.jpg 64w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe12_PCIe5.0-CEM\u63d2\u5361\u63a5\u6536\u673a\u94fe\u8def\u5747\u8861.jpg 1429w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/a><figcaption><strong>\u56fe12. PCIe5.0 CEM\u63d2\u5361\u63a5\u6536\u673a\u94fe\u8def\u5747\u8861\u6d4b\u8bd5\u7684\u8bbe\u7f6e<\/strong><\/figcaption><\/figure><\/div><p><strong>\u538b\u529b\u773c\u6821\u51c6<\/strong><\/p><p>\u52a0\u538b\u4fe1\u53f7\u6821\u51c6\u662f\u4e00\u4e2a\u8fed\u4ee3\u8fc7\u7a0b\uff0c\u6d89\u53ca\u4fe1\u53f7\u751f\u6210\u548c\u793a\u6ce2\u5668CTLE\u7684\u4f18\u5316\u3002\u6bcf\u4e2aBERT PPG preset\u90fd\u5fc5\u987b\u8fdb\u884c\u52a0\u538b\u4fe1\u53f7\u6821\u51c6\uff0c\u5e76\u4e14\u6bcf\u7ec4FFE tap\u5fc5\u987b\u7b26\u5408\u89c4\u8303\u3002<\/p><p>\u6821\u51c6\u7684\u76ee\u7684\u662f\u914d\u7f6e\u4e00\u4e2a\u6700\u5deeISI\u7684\u4fe1\u53f7\uff0c\u5b83\u5177\u6709\u6700\u5c0f\u7684\u5747\u8861\u540e\u7684EH12\uff08BER=1E-12\u65f6\u7684\u773c\u9ad8\uff09\u548cEW12\uff08BER=1E-12\u65f6\u7684\u773c\u5bbd\uff09\uff0c\u5982\u88683\u6240\u793a\u3002\u65e2\u7136\u4fe1\u53f7\u662f\u7528\u4e8e\u53d1\u5230CEM\u8fde\u63a5\u5668\u4e0a\uff0c\u56e0\u6b64\u5fc5\u987b\u5728\u6821\u51c6\u8fc7\u7a0b\u4e2d\u6a21\u62df\u6700\u574f\u60c5\u51b5\u4e0b\u7684\u63d2\u5361\u635f\u8017\u3002<\/p><p>\u4e3a\u4e86\u6700\u5927\u7a0b\u5ea6\u5730\u589e\u52a0\u5bf9\u5747\u8861\u65b9\u6848\u7684\u538b\u529b\uff0c\u5e94\u6309\u7279\u5b9a\u987a\u5e8f\u8bc4\u4f30\u4fe1\u53f7\u51cf\u635f\u3002\u4e3a\u4e86\u8fbe\u5230\u671f\u671b\u7684EH12\u548cEW12\uff0c\u9700\u8981\u4e3a\u4fe1\u53f7\u589e\u52a0\u6240\u9700\u6c34\u5e73\u7684RJ\u4ee5\u53ca\u5141\u8bb8\u8303\u56f4\u5185\u7684\u635f\u8017\u3001SJ\u3001DMI\u548cCMI\uff0c\u5177\u4f53\u53ef\u53c2\u89c1\u88683\u3002<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>APPLIED SIGNAL IMPAIRMENTS<\/strong><\/td><td><strong>ALLOWED RANGE<\/strong><\/td><\/tr><tr><td>Insertion Loss<\/td><td>34-37 dB<\/td><\/tr><tr><td>rms Random Jitter (RJ)<\/td><td>0.5 ps rms<\/td><\/tr><tr><td>Sinusoidal Jitter (SJ)<\/td><td>1-5 ps peak-to-peak<\/td><\/tr><tr><td>Differential Mode Sinusoidal Interference (DMI)<\/td><td>2.1 GHz, 5-30 mV<\/td><\/tr><tr><td>Common Mode Sinusoidal Interference (CMI)<\/td><td>120 MHz, 150 mV<\/td><\/tr><tr><td><strong>TO ACHIEVE<\/strong><\/td><\/tr><tr><td>Eye Width BER = 10<sup>-12<\/sup> (EW12)<\/td><td>9.375 \u00b1 0.5 ps<\/td><\/tr><tr><td>Eye Height BER = 10<sup>-12<\/sup> (EH12)<\/td><td>15 \u00b1 1.5 mV<\/td><\/tr><\/tbody><\/table><figcaption><strong>\u88683. \u4e3a\u8fbe\u5230\u671f\u671b\u7684EH12\u548cEW12\uff0c\u53ef\u4ee5\u6dfb\u52a0\u5230\u4fe1\u53f7\u4e2d\u7684RJ\u3001SJ\u548cDMI\u8303\u56f4<\/strong><\/figcaption><\/figure><p>\u56fe13a\u6240\u793a\u4e3a\u6296\u52a8\u548c\u566a\u58f0\u6821\u51c6\u88c5\u7f6e\u3002\u5728\u8fd9\u4e00\u6b65\u4e2d\uff0c\u6211\u4eec\u786e\u5b9a\u6700\u574f\u60c5\u51b5\u4e0b\u7684RJ\u3001SJ\u548cDMI\u7ec4\u5408\u3002<\/p><p><strong>\u6b65\u9aa4<\/strong><strong>1<\/strong><strong>\uff1a<\/strong><strong><\/strong><\/p><p>\u4e3a\u6821\u51c6\u6700\u574f\u60c5\u51b5\u4e0b\u7684\u6296\u52a8\uff0c\u5c06BERT PPG\u8fde\u63a5\u5230\u793a\u6ce2\u5668\u8f93\u5165\uff0c\u5e76\u786e\u8ba4PPG\u5e94\u7528\u4e86\u88683\u4e2d\u6240\u9700\u6c34\u5e73\u7684rms RJ\u548c\u6700\u5927\u5141\u8bb8SJ\u5e45\u5ea6\u3002<\/p><p><strong>\u6b65\u9aa4<\/strong><strong>2<\/strong><strong>\uff1a<\/strong><strong><\/strong><\/p><p>\u4e3a\u6821\u51c6DMI\u548cCMI\uff0c\u5c06BERTPPG\u8f93\u51fa\u8fde\u63a5\u5230\u53ef\u53d8ISI\u6d4b\u8bd5\u677f\u7684\u6700\u9ad8\u635f\u8017\uff08\u6700\u957f\uff09\u901a\u9053\uff0c\u5373\u201c\u517c\u5bb937dB\u201d\u4fe1\u9053\u3002\u5c06\u5e45\u5ea6\u4e3a5\u81f330mV\u3001\u9891\u73872.1GHz\u7684\u6b63\u5f26DMI\u548cCMI\u901a\u8fc7\u6d4b\u8bd5\u677f\u4f20\u8f93\u5230\u793a\u6ce2\u5668\u3002\u7531\u4e8e\u8be5\u4fe1\u9053\u57282.1GHz\u9891\u7387\u4e0b\u7ea6\u67096dB\u7684\u635f\u8017\uff0c\u56e0\u6b64BERTPPG\u8f93\u51fa\u7aef\u7684\u5e72\u6270\u5e45\u5ea6\u5c06\u4e0e\u4f20\u9012\u7ed9CBB\u7684\u4fe1\u53f7\u7684\u5e45\u5ea6\u4e0d\u540c\u3002<\/p><p><strong>\u6b65\u9aa4<\/strong><strong>3<\/strong><strong>\uff1a<\/strong><strong><\/strong><\/p><p>\u4e0b\u4e00\u6b65\u662f\u5e94\u7528\u6700\u5927ISI\uff0c\u5e76\u4e3a\u6bcf\u4e2a\u53c2\u8003\u53d1\u7aefpreset\u4f18\u5316\u793a\u6ce2\u5668CTLE\u3002\u5982\u56fe13b\u6240\u793a\uff0cBERT PPG\u8f93\u51fa\u88ab\u53d1\u9001\u5230\u5230\u53ef\u53d8ISI\u677f\u4e0a\u6700\u574f\u60c5\u51b5\u4e0b\u768437dB\u4fe1\u9053\u3002\u53ef\u53d8ISI\u677f\u7684\u8f93\u51fa\u8fde\u63a5\u5230CBB\u3002<\/p><p>CBB\u7684\u8f93\u51fa\u8fde\u63a5\u5230\u53ef\u53d8ISI\u677f\u76849dB\u635f\u8017\u4fe1\u9053\uff0c\u4ee5\u6a21\u62df\u6700\u574f\u60c5\u51b5\u4e0b\u7684\u63d2\u5361\u635f\u8017\u30029dB\u4fe1\u9053\u8f93\u51fa\u8fde\u63a5\u5230\u793a\u6ce2\u5668\u8f93\u5165\u3002\u6216\u8005\uff0c\u793a\u6ce2\u5668\u53ef\u4ee5\u5d4c\u5165\u63d2\u5361\u635f\u8017\u3002<\/p><p>\u6d4b\u91cfEH12\u548cEW12\u3002\u5982\u679c\u4efb\u610f\u4e00\u4e2a\u503c\u5c0f\u4e8e\u5141\u8bb8\u7684\u6700\u5c0f\u503c\uff0c\u8bf7\u5c1d\u8bd5\u53ef\u53d8ISI\u677f\u4e0a\u7684\u53e6\u4e00\u6761\u901a\u9053\u3002\u4e0d\u65ad\u5c1d\u8bd5\uff0c\u76f4\u5230\u786e\u5b9a\u80fd\u591f\u5f97\u5230\u9ad8\u4e8e\u6307\u5b9a\u6700\u4f4e\u503c\u7684\u6700\u5c0fEH12\u548cEW12\u7ec4\u5408\u7684ISI\u901a\u9053\u3002<\/p><p><strong>\u6b65\u9aa4<\/strong><strong>4<\/strong><strong>\uff1a<\/strong><strong><\/strong><\/p><p>\u786e\u5b9a\u6700\u4f73\u7684BERTPPG\u9884\u8bbe\u548c\u76f8\u5e94\u7684CTLE\u589e\u76ca\u3002\u5bf9\u4e8e\u6bcf\u4e2apreset\uff0c\u793a\u6ce2\u5668\u5e94\u6355\u83b7\u81f3\u5c11\u4e94\u4e2a\u91cd\u590d\u6ce2\u5f62\u3002\u793a\u6ce2\u5668\u5e94\u80fd\u591f\u81ea\u52a8\u786e\u5b9a\u6700\u4f73\u7684CTLE\u589e\u76ca\u3002\u5f53\u9884\u8bbe\u52a0\u4e0a\u5bf9\u5e94\u7684\u6700\u4f73CTLE\u589e\u76ca\u80fd\u591f\u5f97\u5230\u6700\u5927EH12\u548cEW12\uff0c\u5c31\u79f0\u4e3a\u6700\u4f73\u9884\u8bbe\u3002<\/p><p><strong>\u6b65\u9aa4<\/strong><strong>5<\/strong><strong>\uff1a<\/strong><strong><\/strong><\/p><p>\u5f97\u5230\u6700\u4f73preset\u548cCTLE\u589e\u76ca\u7ec4\u5408\u540e\uff0c\u5982\u6b65\u9aa43\u6240\u8ff0\uff0c\u589e\u52a0\u53ef\u53d8ISI\u677f\u4e0a\u7684\u4fe1\u9053\u635f\u8017\uff0c\u76f4\u5230\u627e\u5230EH12\u548cEW12\u90fd\u8d85\u8fc7\u5404\u81ea\u6307\u5b9a\u6700\u4f4e\u503c\u7684\u6700\u5c0f\u7ec4\u5408\u3002\u73b0\u5728\u91cd\u65b0\u4f18\u5316\u5747\u8861\u65b9\u6848\u3002\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4eec\u5f97\u5230\u4e86\u5177\u6709\u6700\u5927\u635f\u8017\u3001\u6700\u4f73FFE\u9884\u8bbe\u548cCTLE\u589e\u76ca\u7684\u4fe1\u53f7\u3002<\/p><p><strong>\u6b65\u9aa4<\/strong><strong>6<\/strong><strong>\uff1a<\/strong><strong><\/strong><\/p><p>\u589e\u52a0DMI\u3001CMI\u548cSJ\uff0c\u76f4\u5230EH12\u548cEW12\u5c3d\u53ef\u80fd\u63a5\u8fd1\u6700\u5c0f\u503c\u3002\u5f88\u5feb\u5c31\u4f1a\u5b8c\u6210\u76ee\u6807\u538b\u529b\u773c\u7684\u6821\u51c6\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe13a_\u6821\u51c6\u88c5\u7f6e.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"731\" height=\"237\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe13a_\u6821\u51c6\u88c5\u7f6e.jpg\" alt=\"\" class=\"wp-image-4494\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe13a_\u6821\u51c6\u88c5\u7f6e.jpg 731w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe13a_\u6821\u51c6\u88c5\u7f6e-300x97.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe13a_\u6821\u51c6\u88c5\u7f6e-600x195.jpg 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe13a_\u6821\u51c6\u88c5\u7f6e-64x21.jpg 64w\" sizes=\"(max-width: 731px) 100vw, 731px\" \/><\/a><figcaption><strong>(a)\u6296\u52a8\u548c\u5e72\u6270\u6821\u51c6<\/strong><\/figcaption><\/figure><\/div><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe13b_\u6821\u51c6\u88c5\u7f6e_\u521d\u59cb\u9884\u8bbe.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"608\" height=\"196\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe13b_\u6821\u51c6\u88c5\u7f6e_\u521d\u59cb\u9884\u8bbe.jpg\" alt=\"\" class=\"wp-image-4495\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe13b_\u6821\u51c6\u88c5\u7f6e_\u521d\u59cb\u9884\u8bbe.jpg 608w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe13b_\u6821\u51c6\u88c5\u7f6e_\u521d\u59cb\u9884\u8bbe-300x97.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe13b_\u6821\u51c6\u88c5\u7f6e_\u521d\u59cb\u9884\u8bbe-600x193.jpg 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe13b_\u6821\u51c6\u88c5\u7f6e_\u521d\u59cb\u9884\u8bbe-64x21.jpg 64w\" sizes=\"(max-width: 608px) 100vw, 608px\" \/><\/a><figcaption><strong>(b) \u521d\u59cb\u9884\u8bbe\/CTLE\u6821\u51c6<\/strong><\/figcaption><\/figure><\/div><p class=\"has-text-align-center\"><strong>\u56fe13. \u6821\u51c6\u88c5\u7f6e<\/strong><\/p><p><strong>\u63a5\u6536\u7aef\u94fe\u8def\u5747\u8861<\/strong><strong>BER<\/strong><strong>\u6d4b\u8bd5<\/strong><strong><\/strong><\/p><p>\u914d\u7f6e\u4e86BERT PPG\u53c2\u8003\u53d1\u5c04\u673a\uff0c\u5e76\u4ee5\u6700\u574f\u60c5\u51b5\u4e0b\u7684\u538b\u529b\u548c\u7ecf\u8fc7\u4f18\u5316\u7684FFE\u8fdb\u884c\u4e86\u6821\u51c6\uff0c\u6536\u7aef\u94fe\u8def\u5747\u8861\u6d4b\u8bd5\u5c31\u76f8\u5bf9\u5bb9\u6613\u4e86\u3002DUT-SerDes\u9075\u5faaLTSSM\uff0cDUT-\u6536\u7aef\u68c0\u6d4b\u6765\u81eaBERT PPG\u7684\u53d1\u9001\u4fe1\u53f7\uff0c\u8fdb\u5165\u56de\u9001\u6a21\u5f0f\u3002<\/p><p>\u4e00\u65e6\u8fdb\u5165\u56de\u73af\u6a21\u5f0f\uff0cDUT-\u53d1\u7aef\u5c31\u4f1a\u8bf7\u6c42BERT PPG\u7684FFE\u9884\u8bbe\u3002DUT\u901a\u8fc7LTSSM\u5de5\u4f5c\uff0c\u5728\u5c1d\u8bd5\u4e0d\u540c\u7684BERT PPG FFE\u9884\u8bbe\u65f6\uff0c\u901a\u8fc7\u4fee\u6539\u5176\u63a5\u6536\u5668\u5747\u8861\u65b9\u6848\u6765\u4f18\u5316\u94fe\u8def\u5747\u8861\u3002<\/p><p>BERTED\u5728\u6574\u4e2a\u8fc7\u7a0b\u4e2d\u76d1\u89c6BER\uff0cBER\u6d4b\u8bd5\u672c\u8eab\u9700\u8981\u5927\u7ea6\u4e00\u5206\u949f\u7684\u65f6\u95f4\uff0c\u8db3\u591fPCIe5.0\u7cfb\u7edf\u4f20\u8f932&#215;10<sup>12<\/sup>\u6bd4\u7279\u7684\u6570\u636e\u3002\u7531\u4e8ePCIe5.0\u6307\u5b9a\u6536\u7aef\u7684\u6027\u80fd\u800c\u4e0d\u6307\u5b9a\u5747\u8861\u6280\u672f\uff0c\u56e0\u6b64\u6700\u7ec8\u9884\u8bbe\u53ef\u80fd\u4e0e\u6821\u51c6\u671f\u95f4\u83b7\u5f97\u7684\u9884\u8bbe\u4e0d\u540c\u3002<\/p><p>\u5982\u679cBER&lt;10<sup>-12<\/sup>\uff0c\u5219DUT\u7b26\u5408PCIe5.0\uff08\u56fe14\uff09\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe14_Anritsu-MP1900A\u663e\u793a.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"624\" height=\"365\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe14_Anritsu-MP1900A\u663e\u793a.jpg\" alt=\"\" class=\"wp-image-4496\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe14_Anritsu-MP1900A\u663e\u793a.jpg 624w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe14_Anritsu-MP1900A\u663e\u793a-300x175.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe14_Anritsu-MP1900A\u663e\u793a-600x351.jpg 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe14_Anritsu-MP1900A\u663e\u793a-64x37.jpg 64w\" sizes=\"(max-width: 624px) 100vw, 624px\" \/><\/a><figcaption><strong>\u56fe14. Anritsu MP1900A\u663e\u793a\u7684PCIe5.0\u63a5\u6536\u5668\u94fe\u8def\u5747\u8861BER\u6d4b\u8bd5\u7ed3\u679c<\/strong><\/figcaption><\/figure><\/div><p><strong>\u8c03\u8bd5\u6536\u7aef\u94fe\u8def\u5747\u8861<\/strong><\/p><p>\u8bc6\u522bLTSSM\u72b6\u6001\u4e4b\u95f4\u7684\u8fc7\u6e21\u4ee5\u53ca\u8fc7\u6e21\u65f6\u95f4\u7684\u80fd\u529b\u6709\u52a9\u4e8e\u8bc6\u522bDUT\u6545\u969c\u70b9\u3002Anritsu MP1900A BERT\u4f1a\u8bb0\u5f55DUT\u4e0eBERT\u53c2\u8003\u53d1\u7aef\u4e4b\u95f4\u7684\u534f\u5546\u8fc7\u7a0b\u3002\u5982\u679cDUT\u5728\u63a5\u6536\u94fe\u8def\u5747\u8861\u6d4b\u8bd5\u4e2d\u7684\u4efb\u4f55\u6b65\u9aa4\u53d1\u751f\u6545\u969c\uff0c\u53ef\u4ee5\u5206\u6790LTSSM\u94fe\u8def\u8bad\u94fe\u65e5\u5fd7\u4ee5\u786e\u5b9a\u6545\u969c\u539f\u56e0\u3002<\/p><h3 class=\"wp-block-heading\">\u53d1\u7aefPLL\u5e26\u5bbd\u6d4b\u8bd5<\/h3><p>PCIe5.0\u53d1\u7aef\u4ee5100MHz\u53c2\u8003\u65f6\u949f(RefClck)\u5de5\u4f5c\uff0c\u9501\u76f8\u73af(PLL)\u7528\u4e8e\u8ba1\u7b97\u53c2\u8003\u65f6\u949f\u4e0e\u6570\u636e\u901f\u7387\u7684\u4e58\u79ef\uff0c\u4e32\u884c\u5668\u4f7f\u7528\u6570\u636e\u901f\u7387\u65f6\u949f\u5c06\u8f83\u4f4e\u901f\u7387\u7684\u6570\u636e\u52a0\u8f7d\u5230\u7b26\u5408PCIe\u7684\u9ad8\u901f\u4e32\u884c\u6570\u636e\u4fe1\u53f7\u3002<\/p><p>PLL\u5e26\u5bbd\u6d4b\u8bd5\u53ef\u6d4b\u91cfDUT-\u53d1\u7aef\u7684\u6296\u52a8\u4f20\u9012\u51fd\u6570\uff1b\u4e5f\u5c31\u662f\u8fdb\u5165\u53d1\u5c04\u4fe1\u53f7\u7684\u53c2\u8003\u65f6\u949f\u6296\u52a8\u3002PLL\u5e26\u5bbd\u6d4b\u8bd5\u53ef\u9a8c\u8bc1\u5361PLL\u5e26\u5bbd\u548c\u5cf0\u503c\u662f\u5426\u5728\u5141\u8bb8\u7684\u8303\u56f4\u5185\uff0c\u5e76\u4e14\u662f\u5426\u7b26\u5408CEM\u63d2\u5361\u89c4\u683c\u8981\u6c42\u3002<\/p><p>DUT-\u6536\u7aef\u7684-3dB\u7684\u6eda\u964d\u7279\u6027\u5fc5\u987b\u5728\u6307\u5b9a\u7684\u9891\u7387\u8303\u56f4\u5185\uff0c\u5e76\u4e14\u4e0d\u4f1a\u8d85\u8fc7\u5cf0\u503c\u3002\u53d1\u7aef\u7684PLL\u548c\u6536\u7aef\u7684\u65f6\u949f\u6570\u636e\u6062\u590d(CDR)\u7535\u8def\u4e4b\u95f4\u5b58\u5728\u4e92\u8865\u5173\u7cfb\u3002\u7531\u4e8e\u6536\u7aef\u5728\u5176CDR\u5e26\u5bbd\u4ee5\u4e0b\u7684\u9891\u7387\u5177\u6709\u8f83\u5f3a\u7684\u6297\u6296\u52a8\u6027\uff0c\u800c\u5728CDR\u5e26\u5bbd\u4ee5\u4e0a\u7684\u9891\u7387\u5bb9\u6613\u53d7\u5230\u6296\u52a8\u5f71\u54cd\uff0c\u56e0\u6b64\u53d1\u7aef\u7684PLL\u5fc5\u987b\u6ee4\u6389\u9ad8\u9891\u6296\u52a8\uff0c\u624d\u80fd\u4f7f\u7cfb\u7edf\u4ee5\u6240\u9700\u7684BER\u8fd0\u884c\u3002<\/p><p>\u8be5\u6d4b\u8bd5\u4f7f\u7528BERT\u5b50\u901f\u7387\u65f6\u949f\u8f93\u51fa\u5c06SJ\u5e94\u7528\u4e8eDUT\u53c2\u8003\u65f6\u949f\u3002\u5176\u601d\u8def\u662f\u5728\u8de8\u8d8a\u6307\u5b9aPLL\u8870\u51cf\u9891\u7387\u7684\u9891\u7387\u4e0a\u5e94\u7528\u6821\u51c6\u540e\u7684SJ\u5e45\u5ea6\uff0c\u5e76\u6d4b\u91cf\u6bcf\u4e2a\u9891\u7387\u4e0bDUT-\u53d1\u5c04\u5668\u7684\u8f93\u51fa\u6296\u52a8\u3002<\/p><p>\u793a\u6ce2\u5668\u7528\u4e8e\u6821\u51c6PLL\u6eda\u964d\u9891\u7387\u8303\u56f4\u5185\u7684Sj\u7684\u5e45\u5ea6\uff08\u56fe15\uff09\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe15_PLL\u5e26\u5bbd\u6d4b\u8bd5\u6821\u51c6.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"243\" height=\"223\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe15_PLL\u5e26\u5bbd\u6d4b\u8bd5\u6821\u51c6.jpg\" alt=\"\" class=\"wp-image-4497\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe15_PLL\u5e26\u5bbd\u6d4b\u8bd5\u6821\u51c6.jpg 243w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe15_PLL\u5e26\u5bbd\u6d4b\u8bd5\u6821\u51c6-64x59.jpg 64w\" sizes=\"(max-width: 243px) 100vw, 243px\" \/><\/a><figcaption><strong>\u56fe15. PLL\u5e26\u5bbd\u6d4b\u8bd5\u6821\u51c6\u88c5\u7f6e<\/strong><\/figcaption><\/figure><\/div><p>\u6d4b\u8bd5\u88c5\u7f6e\u5982\u56fe16\u6240\u793a\u3002\u6296\u52a8\u7684\u5b50\u901f\u7387\u65f6\u949f\u8fde\u63a5\u5230CBB\u4e0a\u7684PCI\u53c2\u8003\u65f6\u949f\u8f93\uff0cDUT-\u53d1\u7aef\u8f93\u51fa\u8fde\u63a5\u5230\u793a\u6ce2\u5668\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe16_\u53d1\u7aefPLL\u5e26\u5bbd\u6d4b\u8bd5.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"576\" height=\"237\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe16_\u53d1\u7aefPLL\u5e26\u5bbd\u6d4b\u8bd5.jpg\" alt=\"\" class=\"wp-image-4498\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe16_\u53d1\u7aefPLL\u5e26\u5bbd\u6d4b\u8bd5.jpg 576w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe16_\u53d1\u7aefPLL\u5e26\u5bbd\u6d4b\u8bd5-300x123.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe16_\u53d1\u7aefPLL\u5e26\u5bbd\u6d4b\u8bd5-64x26.jpg 64w\" sizes=\"(max-width: 576px) 100vw, 576px\" \/><\/a><figcaption><strong>\u56fe16. \u53d1\u7aefPLL\u5e26\u5bbd\u6d4b\u8bd5\u8bbe\u7f6e<\/strong><\/figcaption><\/figure><\/div><p>\u793a\u6ce2\u5668\u9488\u5bf9\u6240\u65bd\u52a0SJ\u7684\u6bcf\u4e2a\u9891\u7387\u6d4b\u91cf\u8f93\u51fa\u5468\u671f\u6296\u52a8(PJ)\u5e45\u5ea6\u3002PCIe5.0\u89c4\u5b9a\u4e86\u53d1\u751f-3dB\u6eda\u964d\u7684\u5141\u8bb8\u9891\u7387\u8303\u56f4\u4ee5\u53ca\u5cf0\u503c\u6296\u52a8\u5e45\u5ea6\u7684\u5141\u8bb8\u8303\u56f4\uff08\u56fe17\uff09\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe17_\u53d1\u7aefPLL\u6296\u52a8\u4f20\u51fd\u7684\u7ed3\u679c.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"477\" height=\"357\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe17_\u53d1\u7aefPLL\u6296\u52a8\u4f20\u51fd\u7684\u7ed3\u679c.jpg\" alt=\"\" class=\"wp-image-4499\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe17_\u53d1\u7aefPLL\u6296\u52a8\u4f20\u51fd\u7684\u7ed3\u679c.jpg 477w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe17_\u53d1\u7aefPLL\u6296\u52a8\u4f20\u51fd\u7684\u7ed3\u679c-300x225.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe17_\u53d1\u7aefPLL\u6296\u52a8\u4f20\u51fd\u7684\u7ed3\u679c-380x285.jpg 380w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe17_\u53d1\u7aefPLL\u6296\u52a8\u4f20\u51fd\u7684\u7ed3\u679c-285x214.jpg 285w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe17_\u53d1\u7aefPLL\u6296\u52a8\u4f20\u51fd\u7684\u7ed3\u679c-64x48.jpg 64w\" sizes=\"(max-width: 477px) 100vw, 477px\" \/><\/a><figcaption><strong>\u56fe17. \u53d1\u7aefPLL\u6296\u52a8\u4f20\u51fd\u7684\u7ed3\u679c<\/strong><\/figcaption><\/figure><\/div><p><\/p><h3 class=\"wp-block-heading\">\u63a5\u6536\u673a\u6296\u52a8\u5bb9\u9650\u6d4b\u8bd5(JTOL)<\/h3><p>\u6296\u52a8\u5bb9\u9650\u6d4b\u8bd5(JTOL)\u662f\u63a5\u6536\u673a\u7aef\u5bf9\u53d1\u7aefPLL\u5e26\u5bbd\u6d4b\u8bd5\u7684\u8865\u5145\u3002PCIe5.0\u89c4\u8303\u4e2d\u6ca1\u6709JTOL\u8981\u6c42\uff0c\u4f46JTOL\u662f\u8bc4\u4f30\u63a5\u6536\u7aef\u5bb9\u5fcd\u4e0d\u540c\u5e45\u5ea6\u548c\u9891\u7387\u6296\u52a8\u7684\u80fd\u529b\u7684\u6709\u6548\u65b9\u6cd5\u3002<\/p><p>\u538b\u529b\u4fe1\u53f7\u662f\u6700\u574f\u7684\u60c5\u51b5\uff0c\u4f46\u4e5f\u662f\u7b26\u5408\u6807\u51c6\u7684\u4fe1\u53f7\uff0c\u5f15\u5165\u4e86ISI\u3001RJ\u3001DMI\u548cCMI\u3002\u53ef\u4ee5\u6309\u7167 \u201c\u6536\u7aef\u94fe\u8def\u5747\u8861\u6d4b\u8bd5\u201d\u4e2d\u6240\u8ff0\u8fdb\u884c\u6821\u51c6\uff0c\u518d\u7ed3\u5408BERT PPG preset\u548c\u793a\u6ce2\u5668\u53c2\u8003\u63a5\u6536\u5668CTLE\u589e\u76ca\u7684\u4f18\u5316\u7ec4\u5408\u3002\u4f5c\u4e3a\u4e00\u79cd\u8c03\u8bd5\u65b9\u6cd5\u6216\u6027\u80fd\u5197\u4f59\u5ea6\u5206\u6790\uff0cJTOL\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55\u5747\u8861\u65b9\u6848\u8fdb\u884c\u6d4b\u8bd5\uff0c\u6839\u636e\u56fe18\u6240\u793a\u7684\u5e45\u9891\u6a21\u677f\u5c06SJ\u6dfb\u52a0\u5230\u4fe1\u53f7\u4e2d\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe18_-JTOL-SJ\u6a21\u677f.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"344\" height=\"239\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe18_-JTOL-SJ\u6a21\u677f.jpg\" alt=\"\" class=\"wp-image-4500\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe18_-JTOL-SJ\u6a21\u677f.jpg 344w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe18_-JTOL-SJ\u6a21\u677f-300x208.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe18_-JTOL-SJ\u6a21\u677f-64x44.jpg 64w\" sizes=\"(max-width: 344px) 100vw, 344px\" \/><\/a><figcaption><strong>\u56fe18. JTOL SJ\u6a21\u677f<\/strong><\/figcaption><\/figure><\/div><p>\u9ad8\u5e45\u5ea6\u6296\u52a8\u5e94\u7528\u4e8e\u4f4e\u9891\uff0c\u800c\u4f4e\u5e45\u5ea6\u6296\u52a8\u5e94\u7528\u4e8e\u9ad8\u9891\u3002\u4ece1MHz\u523010MHz\u7684\u6eda\u964d\u7279\u6027\u9075\u5faa\u6307\u5b9a\u7684CDR\u9891\u54cd\u7279\u6027\u3002\u5bf9\u4e8e\u6240\u6709\u5e45\u9891\u5bf9\uff0cDUT-\u6536\u7aef\u5747\u5e94\u9075\u5b88BER&lt;10<sup>-12<\/sup>\uff08\u56fe19\uff09\u3002\u4e3a\u4e86\u4f7f\u6d4b\u91cf\u4fdd\u6301\u5728\u5408\u7406\u7684\u65f6\u95f4\u957f\u5ea6\uff0cBER\u901a\u5e38\u6700\u591a\u6d4b\u91cf\u5230BER&lt;10<sup>-6<\/sup>\uff0c\u5e76\u5bf9BER\u6982\u7387\u7684\u659c\u7387\u63a8\u7b97\u6765\u786e\u4fddBER&lt;10<sup>-12<\/sup>\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe19_\u6765\u81eaAnritsu-MP1900A\u7684\u81ea\u52a8\u5316JTOL\u6d4b\u8bd5\u7ed3\u679c.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"384\" height=\"294\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe19_\u6765\u81eaAnritsu-MP1900A\u7684\u81ea\u52a8\u5316JTOL\u6d4b\u8bd5\u7ed3\u679c.jpg\" alt=\"\" class=\"wp-image-4501\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe19_\u6765\u81eaAnritsu-MP1900A\u7684\u81ea\u52a8\u5316JTOL\u6d4b\u8bd5\u7ed3\u679c.jpg 384w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe19_\u6765\u81eaAnritsu-MP1900A\u7684\u81ea\u52a8\u5316JTOL\u6d4b\u8bd5\u7ed3\u679c-300x230.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe19_\u6765\u81eaAnritsu-MP1900A\u7684\u81ea\u52a8\u5316JTOL\u6d4b\u8bd5\u7ed3\u679c-64x49.jpg 64w\" sizes=\"(max-width: 384px) 100vw, 384px\" \/><\/a><figcaption><strong>\u56fe19. \u6765\u81eaAnritsu MP1900A\u7684\u81ea\u52a8\u5316JTOL\u6d4b\u8bd5\u7ed3\u679c<\/strong><\/figcaption><\/figure><\/div><p><\/p><h3 class=\"wp-block-heading\">BASE\u89c4\u8303\u7b26\u5408\u6027\u6d4b\u8bd5<\/h3><p>\u8981\u7b26\u5408BASE\u89c4\u8303\uff0c\u8981\u6c42\u8fdb\u884c\u4e25\u683c\u7684\u63a5\u6536\u673a\u5bb9\u9650\u6d4b\u8bd5\uff0c\u4f46\u4e0d\u9700\u8981\u4efb\u4f55\u94fe\u8def\u5747\u8861\u6d4b\u8bd5\u3002CEM\u6d4b\u8bd5\u70b9\u662fBASE\u677f\u63d2\u5361\u8fde\u63a5\u5668\uff0cBASE\u6d4b\u8bd5\u70b9\u662f\u5728DUT-SerDes\u7684\u5f15\u811a\u4e0a\u3002<\/p><p>PCI-SIG\u63d0\u4f9b\u4e86\u7528\u4e8eBASE SerDes\u6d4b\u8bd5\u7684\u6d4b\u8bd5\u677f\u3002\u5206\u7ebf\u677f\u6709\u4e24\u4e2a\u4fe1\u9053\uff0c\u4e00\u4e2a\u901a\u9053\u7528\u4e8eDUT\uff0c\u53e6\u4e00\u4e2a\u901a\u9053\u7528\u4e8e\u6821\u51c6DUT-\u6536\u7aef\u5f15\u811a\u4e0a\u7684\u52a0\u538b\u4fe1\u53f7\u3002\u56fe20\u663e\u793a\u4e86\u6821\u51c6\u548c\u6d4b\u8bd5\u88c5\u7f6e\u3002\u5728\u52a0\u538b\u6761\u4ef6\u4e0b\uff0cDUT-\u6536\u7aef\u5fc5\u987b\u5de5\u4f5c\u5728BER\u226410<sup>-12<\/sup>\u7684\u60c5\u51b5\u4e0b\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe20a_PCIe5.0-BASE_\u6821\u51c6.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"608\" height=\"236\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe20a_PCIe5.0-BASE_\u6821\u51c6.jpg\" alt=\"\" class=\"wp-image-4502\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe20a_PCIe5.0-BASE_\u6821\u51c6.jpg 608w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe20a_PCIe5.0-BASE_\u6821\u51c6-300x116.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe20a_PCIe5.0-BASE_\u6821\u51c6-600x233.jpg 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe20a_PCIe5.0-BASE_\u6821\u51c6-64x25.jpg 64w\" sizes=\"(max-width: 608px) 100vw, 608px\" \/><\/a><figcaption><strong>\uff08a\uff09\u6821\u51c6<\/strong><\/figcaption><\/figure><\/div><p><\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe20b_PCIe5.0-BASE_BER\u6d4b\u8bd5.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"609\" height=\"201\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe20b_PCIe5.0-BASE_BER\u6d4b\u8bd5.jpg\" alt=\"\" class=\"wp-image-4503\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe20b_PCIe5.0-BASE_BER\u6d4b\u8bd5.jpg 609w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe20b_PCIe5.0-BASE_BER\u6d4b\u8bd5-300x99.jpg 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe20b_PCIe5.0-BASE_BER\u6d4b\u8bd5-600x198.jpg 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/07\/\u56fe20b_PCIe5.0-BASE_BER\u6d4b\u8bd5-64x21.jpg 64w\" sizes=\"(max-width: 609px) 100vw, 609px\" \/><\/a><figcaption><strong>(b) BER\u6d4b\u8bd5<\/strong><br><strong>\u56fe20. PCIe5.0 BASE\u52a0\u538b\u63a5\u6536\u5668\u5bb9\u9650\u6d4b\u8bd5\u88c5\u7f6e<\/strong><\/figcaption><\/figure><\/div><p><\/p>","protected":false},"excerpt":{"rendered":"<p>PCIe\u6d4b\u8bd5\u7684\u5173\u952e\u8bbe\u5907\u5305\u62ec\u8bef\u7801\u7387\u6d4b\u8bd5\u4eea(BERT)\u548c\u5b9e\u65f6\u793a\u6ce2\u5668\u3002\u7279\u522b\u662fPCIe5.0\u6d4b\u8bd5\uff0c\u8981\u6c42\u4f7f\u7528\u9ad8\u8d28\u91cfBERT\u7684\u8109\u51b2\u7801\u578b\u53d1\u751f\u5668(PPG)\u548cBERT\u7684\u8bef\u7801\u5206\u6790\u4eea(ED)\u3002PPG\u9700\u8981\u80fd\u7cbe\u786e\u751f\u6210\u7279\u5b9a\u635f\u8017\u7684\u4fe1\u53f7\uff0cED\u5e94\u80fd\u591f\u5206\u6790SerDes\u8f93\u51fa\u8bef\u7801\u7387(BER)\u4ee5\u786e\u5b9a\u5f85\u6d4b\u4ef6\u662f\u5426\u7b26\u5408PCIe\u89c4\u8303\u3002<\/p>\n","protected":false},"author":2,"featured_media":4511,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,108,24],"tags":[326,355,354],"class_list":["post-4481","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-datacenter","category-electronics","category-solutions","tag-pcie","tag-pcie-gen5","tag-pcie5-0"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - 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