{"id":7223,"date":"2022-04-22T14:56:32","date_gmt":"2022-04-22T21:56:32","guid":{"rendered":"https:\/\/www.xh86.me\/?p=7223"},"modified":"2022-04-22T14:56:32","modified_gmt":"2022-04-22T21:56:32","slug":"%e6%95%b0%e6%8d%ae%e4%b8%ad%e5%bf%83%e5%85%b1%e5%b0%81%e8%a3%85%e6%8a%80%e6%9c%af%e7%9a%84%e6%9c%ba%e9%81%87%e4%b8%8e%e6%8c%91%e6%88%98%ef%bc%88%e4%ba%8c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.xh86.me\/?p=7223","title":{"rendered":"\u6570\u636e\u4e2d\u5fc3\u5171\u5c01\u88c5\u6280\u672f\u7684\u673a\u9047\u4e0e\u6311\u6218\uff08\u4e8c\uff09"},"content":{"rendered":"
\n
<\/section>\n

\u7b2c\u56db\u90e8\u5206 \u6570\u636e\u4e2d\u5fc3\u5149\u5b66\uff1a\u6311\u6218<\/span><\/p>\n

<\/h2>\n
\u57fa\u4e8e FPP \u6a21\u5757\u7684\u6570\u636e\u4e2d\u5fc3\u5149\u5b66\u8bbe\u5907\u6301\u7eed\u53d1\u5c55\u7684\u4e3b\u8981\u969c\u788d\u662f\u7f3a\u5c11\u8d85800G\u7684\u53d1\u5c55\u8def\u7ebf\u3001\u9ad8\u6210\u672c\u3001\u7535\u901a\u9053\u529f\u8017\u5927\u4ee5\u53ca\u7531\u4e8e\u5e26\u5bbd\u5bc6\u5ea6\u6709\u9650\u800c\u5bf9\u673a\u67b6\u7a7a\u95f4\u9700\u6c42\u4e0d\u65ad\u589e\u52a0\u3002\u672c\u8282\u66f4\u8be6\u7ec6\u5730\u8ba8\u8bba\u8fd9\u4e9b\u65b9\u9762\u3002<\/span><\/section>\n

4.1 \u8d85800G<\/span><\/strong><\/span><\/h3>\n
\u76ee\u524d\u8fd8\u6ca1\u6709\u652f\u6301\u8d85800G\u7684\u53ef\u63d2\u62d4\u6a21\u5757\u3002\u5c31\u6240\u9700\u7684\u7535\u8fde\u63a5\u5668\u548c\u5149\u8fde\u63a5\u5668\u5bc6\u5ea6\u800c\u8a00\uff0c\u5728\u76f8\u540c\u5c3a\u5bf8\u5185\u5c06\u901a\u9053\u6570\u91cf\u589e\u52a0\u6216\u8d85\u8fc78\u4e2a\u6781\u5177\u6709\u6311\u6218\u6027\u3002<\/span><\/section>\n
\u8d85800G \u7684\u53ef\u63d2\u62d4\u6a21\u5757\u53ef\u80fd\u9700\u8981\u66f4\u5927\u7684\u5916\u5f62\u5c3a\u5bf8\u6765\u5e94\u5bf9\u6563\u70ed\u95ee\u9898\uff0c\u8fd9\u79cd\u5c3a\u5bf8\u7684\u589e\u52a0\u4f1a\u5bf9\u5e26\u5bbd\u5bc6\u5ea6\u4ea7\u751f\u8d1f\u9762\u5f71\u54cd\u3002<\/span><\/section>\n
\u66f4\u9ad8\u7684\u901a\u9053\u901f\u7387\u4e0d\u53ef\u907f\u514d\uff0c\u2265200 Gb\/s \u7684\u76f4\u63a5\u68c0\u6d4b\u5149\u5b66\u6280\u672f\u5df2\u7ecf\u8bc1\u660e\u53ef\u884c<\/span>\uff0c\u4f46\u7528\u4e8eFPP\u5149\u6a21\u5757\u7684200 Gb\/s \u7535 Serdes \u7684\u5b9e\u9645\u53ef\u884c\u6027\u5c1a\u4e0d\u786e\u5b9a\u3002<\/section>\n
\u5c3d\u7ba1\u8fd9\u79cd Serdes \u53ef\u80fd\u5728 PCB\u3001\u8fde\u63a5\u5668\u548c\u5c01\u88c5\u5f97\u5230\u663e\u8457\u6539\u8fdb\u7684\u60c5\u51b5\u4e0b\u6709\u4e00\u5b9a\u53ef\u884c\uff0c\u4f46\u82af\u7247\u5230\u6a21\u5757\u7684\u901a\u9053\u53ef\u80fd\u9700\u8981 LR \u578b\uff0830 dB \u63d2\u635f\uff09\u3002\u4ea4\u6362\u673a ASIC \u548c\u6a21\u5757\u529f\u8017\u7684\u76f8\u5e94\u589e\u52a0\uff0c\u662f\u672a\u6765\u53ef\u80fd\u8003\u8651CPO\u6280\u672f\u7684\u5f3a\u5927\u52a8\u529b\u3002<\/span><\/section>\n

4.2 \u6210\u672c<\/span><\/strong><\/span><\/h3>\n
\u5728\u8fc7\u53bb 10 \u5e74\u4e2d\uff0c\u5149\u6a21\u5757\u7684\u5355\u4f4d\u5bb9\u91cf\u5e73\u5747\u6210\u672c\u5927\u5e45\u4e0b\u964d\uff0c\u89c1\u56fe\u00a0<\/span>2a<\/span>\u3002\u5de5\u827a\u6280\u672f\u3001\u96c6\u6210\u5ea6\u548c\u5236\u9020\u6280\u672f\u7684\u6539\u8fdb\u662f\u4e3b\u8981\u539f\u56e0\u3002\u7136\u800c\uff0c\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\uff0c\u8fd9\u79cd\u6781\u7aef\u7684\u4ef7\u683c\u4e0b\u964d\u4e5f\u5f52\u56e0\u4e8e\u4e00\u5c0f\u7fa4\u5f3a\u5927\u7684\u7528\u6237\u201c\u8d85\u5927\u89c4\u6a21\u6570\u636e\u4e2d\u5fc3\u8fd0\u8425\u5546\u201d\uff0c<\/strong>\u4ed6\u4eec\u5bf9\u6210\u672c\u6709\u9ad8\u5ea6\u7684\u654f\u611f\u6027\u3002<\/span><\/section>\n

<\/div><\/span><\/p>\n

\u56fe2\u00a02010-2023\u5e74\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\u548c\u5149\u6a21\u5757\u6210\u672c\u8d8b\u52bf\uff1b2020-2023 \u5e74\u7684\u503c\u662f\u9884\u6d4b\u503c\u3002<\/span><\/span><\/p>\n

\u7136\u800c\uff0c\u4ea4\u6362\u673a ASIC \u5355\u4f4d\u5bb9\u91cf\u6210\u672c\u4e0b\u964d\u7684\u901f\u5ea6\u6bd4\u5149\u5b66\u5668\u4ef6\u7684\u6210\u672c\u4e0b\u964d\u5f97\u66f4\u5feb\u3002\u8fd9\u5bfc\u81f4\u5149\u5b66\u5668\u4ef6\u5728\u4ea4\u6362\u673a\u7684\u603b\u6210\u672c\u4e2d\u6240\u5360\u7684\u76f8\u5bf9\u6210\u672c\u589e\u52a0\u3002\u5982\u56fe2b<\/span>\u6240\u793a\uff0c\u8fd9\u4e2a\u6bd4\u7387\u5728\u4ece 10G \u5230 400G \u7684\u589e\u52a0\u5f88\u5feb\u3002\u5bf9\u4e8e 400G \u4e00\u4ee3\uff0c\u9884\u8ba1\u5149\u5b66\u5668\u4ef6\u5c06\u5360\u603b\u6210\u672c\u7684 50% \u4ee5\u4e0a\u3002<\/span><\/section>\n
\u4e3b\u8981\u539f\u56e0\u662f\u4ea4\u6362\u673aASIC\u5728\u8fd9\u4e00\u65f6\u671f\u5145\u5206\u53d7\u76ca\u4e8e\u6469\u5c14\u5b9a\u5f8b\uff0c\u800c\u5149\u6a21\u5757\u5219\u6ca1\u6709\u3002\u4f20\u7edf\uff08\u975e\u7845\u5149\u5b50\uff09\u5149\u5b66\u6a21\u5757\u662f\u590d\u6742\u7684\u5fae\u5149\u5b66\u7cfb\u7edf\uff0c\u7531\u8bb8\u591a\u5206\u7acb\u5143\u4ef6\u5236\u6210\uff0c\u901a\u5e38\u662f\u624b\u5de5\u7ec4\u88c5\uff0c\u5e76\u4ee5\u76f8\u5bf9\u8f83\u9ad8\u7684\u5c01\u88c5\u6210\u672c\u8fdb\u884c\u4f4e\u5bc6\u5ea6\u5c01\u88c5\u3002\u4e3a\u4e86\u8fce\u5934\u8d76\u4e0a\uff0c\u9700\u8981\u63d0\u9ad8\u96c6\u6210\u548c\u5236\u9020\u81ea\u52a8\u5316\u6c34\u5e73\u3002\u4e3a\u4e86\u4fdd\u6301\u5149\u5b66\u5668\u4ef6\u7684\u76f8\u5bf9\u6210\u672c\u6052\u5b9a\uff0c\u5149\u5b66\u5668\u4ef6\u7684\u5355\u4f4d\u5bb9\u91cf\u6210\u672c\u9700\u8981\u4e0e\u4ea4\u6362\u673a ASIC \u7684\u6210\u672c\u548c\u603b\u5bb9\u91cf\uff08\u7684\u5012\u6570\uff09\u4fdd\u6301\u540c\u6b65\u3002\u7845\u5149\u662f\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\u7684\u5173\u952e\u6280\u672f\u3002<\/span><\/section>\n
\u56fe3<\/span>\u5c06 400G \u6536\u53d1\u5668\u6a21\u5757\u7684\u6210\u672c\u5206\u89e3\u4e3a\u6536\u53d1\u5668\u5b50\u7ec4\u4ef6\u3001\u63a5\u6536\u5668\u5b50\u7ec4\u4ef6\u3001\u673a\u68b0\u7ec4\u4ef6\uff08PCB\u3001\u5fae\u63a7\u5236\u5668\u3001\u65e0\u6e90\u5668\u4ef6\u3001\u8fde\u63a5\u5668\u3001\u5916\u58f3\u7b49\uff09\u4ee5\u53ca\u6700\u7ec8\u7ec4\u88c5\u548c\u6d4b\u8bd5\u3002\u5927\u7ea6 40% \u7684\u6210\u672c\u4e0e\u7ec4\u88c5\u548c\u6d4b\u8bd5\u6709\u5173\u3002CPO \u53ef\u4ee5\u901a\u8fc7\u6d88\u9664\u5927\u90e8\u5206\u4e0e\u5c01\u88c5\u76f8\u5173\u7684\u5206\u7acb\u90e8\u4ef6\u548c\u7ec4\u88c5\u6b65\u9aa4\u6765\u5927\u5e45\u964d\u4f4e\u8fd9\u4e00\u4efd\u989d\uff0c\u540c\u65f6\u901a\u8fc7\u6676\u5706\u7ea7\u96c6\u6210\u3001\u5c01\u88c5\u548c\u6d4b\u8bd5\u964d\u4f4e\u53d1\u5c04\u548c\u63a5\u6536\u5b50\u7ec4\u4ef6\u7684\u5236\u9020\u6210\u672c\u3002<\/span><\/section>\n

<\/div><\/span><\/p>\n

\u56fe 3\u00a0<\/strong>400Gb\/s\u53ef\u63d2\u62d4\u6536\u53d1\u5668\u7684\u6210\u672c\u7ed3\u6784\u7ec6\u5206<\/span><\/p>\n

\u00a0<\/span><\/p>\n

4.3 \u5bc6\u5ea6<\/span><\/strong><\/h3>\n
\u5e26\u5bbd\u5bc6\u5ea6\u662f\u53e6\u4e00\u4e2a\u91cd\u8981\u7684\u9650\u5236\u56e0\u7d20\u3002\u88684<\/span>\u603b\u7ed3\u4e86\u5e26\u5bbd\u5bc6\u5ea6\u7684\u53d1\u5c55\u3002\u5bf9\u4e8e 1.28 \u548c 3.2 T \u4ea4\u6362\u673a\uff0c1RU\u6807\u51c6\u8bbe\u5907\u53ef\u5206\u522b\u5bb9\u7eb3 32 \u4e2a 40G \u548c 100G \u7684 QSFP \u6a21\u5757\u30026.4T\uff0864\u00d7100G<\/span>\uff09\u5219\u9700\u8981\u91c7\u75282RU\uff0c\u56e0\u4e3a\u5bc6\u5ea6\u66f4\u9ad8\u7684\u5149\u6a21\u5757\u5f53\u65f6\u5e76\u6ca1\u6709\u51c6\u5907\u597d\u3002\u5bf9\u4e8e 12.8 T \u4ee3\uff0c\u4ea4\u6362ASIC\u548c\u5149\u5b66\u5668\u4ef6\u518d\u6b21\u5bf9\u9f50\uff1a8\u901a\u9053 QSPF-DD\/OSFP 400G \u6a21\u5757\u7684\u53ef\u7528\u6027\u4f7f\u5f97\u5728 1RU \u76d2\u4f53\u4e2d\u5bb9\u7eb312.8T\u6210\u4e3a\u53ef\u80fd\u3002<\/span><\/section>\n

\u8868 4\u00a0<\/span>\u5e26\u5bbd\u5bc6\u5ea6<\/span>

<\/div><\/p>\n
\u91c7\u752850G Serdes\u901f\u7387\u768425.6T\u82af\u7247\u8981\u5bb9\u7eb364\u00d7400G QSFP-DD\u5149\u6a21\u5757\u9700\u89812RU\u7a7a\u95f4\u3002\u800c\u5f53\u901f\u7387\u8f6c\u6362\u5230100G Serdes\u65f6\uff0c\u53c8\u91c7\u75281RU\uff0832\u00d7800G\uff09\u5c31\u53ef\u4ee5\u5b9e\u73b0\u3002\u7136\u800c\uff0c\u6563\u70ed\u4e5f\u6210\u4e3a\u4e00\u4e2a\u95ee\u9898\u3002400G FR4\u548cDR4\u6a21\u5757\u7684\u529f\u8017\u572810-12W\u5de6\u53f3\uff0c\u6240\u4ee5\u5355\u4e2a\u76d2\u4f53\u5728640-768W\u3002<\/span>\u52a0\u4e0a\u4e3b\u4ea4\u6362\u673aASIC\u3001\u63a7\u5236CPU\u3001\u98ce\u6247\u548c\u7535\u6e90\uff0c\u6574\u673a\u6700\u7ec8\u5728 1.5-2 kW\u4e4b\u95f4\u3002<\/span>\u7531\u4e8e\u5bf9\u6563\u70ed\u5668\u5c3a\u5bf8\u3001\u9762\u677f\u901a\u98ce\u7387\u548c\u98ce\u673a\u6027\u80fd\u7684\u60c5\u51b5\uff0c\u8fd9\u9700\u8981\u4e00\u4e2a\u5f88\u5f3a\u7684\u6563\u70ed\u89e3\u51b3\u65b9\u6848\uff0c\u800c\u8be5\u89e3\u51b3\u65b9\u6848\u53ef\u80fd\u96be\u4ee5\u57281RU\u4e2d\u89e3\u51b3\u3002<\/span><\/span><\/span><\/section>\n
\u5f53\u4ea4\u6362\u673a\u8fbe\u523051.2T\u65f6\uff0c2RU\u7a7a\u95f4\u53ef\u4ee5\u5bb9\u7eb364\u00d7800G\u6a21\u5757\uff0c\u5982\u679c\u6563\u70ed\u53ef\u884c\uff0c\u91c7\u7528<\/span>\u53ef\u63d2\u62d4\u6a21\u5757\u4f3c\u4e4e\u53ef\u4ee5\u8fbe\u523051.2T\u8fd9\u4e00\u4ee3<\/span>\u3002<\/span><\/span><\/span><\/span><\/section>\n
\u4f46\u662f\uff0c\u8d85800G\u5230\u5e95\u8be5\u5982\u4f55\uff1f\u662f\u5fc5\u987b\u8981\u89e3\u51b3\u7684\u95ee\u9898\u3002<\/span>\u677f\u8f7d\u548c\u5171\u5c01\u88c5\u89e3\u51b3\u65b9\u6848\u7684\u4f18\u70b9\u662f\u9762\u677f\u4fa7\u4ec5\u9700\u8981\u65e0\u6e90\u5149\u8fde\u63a5\u5668\u5373\u53ef\u3002\u4ed6\u4eec\u5c3a\u5bf8\u5f88\u5c0f\uff0c\u5728\u9762\u677f\u4fa7\u53ef\u4ee5\u5bb9\u7eb3\u66f4\u591a\u7684\u901a\u9053\uff0c\u4e5f\u53ef\u4ee5\u7559\u51fa\u66f4\u591a\u7684\u901a\u98ce\u9762\u79ef\u3002\u800c\u4e14\u8fd9\u4e9b\u65e0\u6e90\u5668\u4ef6\u6ca1\u6709\u70ed\u91cf\uff0c\u4e0d\u9700\u8981\u8003\u8651\u81ea\u8eab\u7684\u6563\u70ed\u3002<\/span><\/section>\n
\u677f\u8f7d\u5149\u5b66\u8054\u76df (COBO) \u5b9a\u4e49\u4e86\u4e00\u79cd 16 \u901a\u9053\u677f\u8f7d\u6a21\u5757\uff0c\u652f\u6301800 Gb\/s\uff0c100G Serdes\uff0c\u6bcf\u4e2a\u6a21\u5757\u8fd8\u53ef\u4ee5\u8fbe\u52301.6T\uff0c\u4f46\u76ee\u524d\u4f3c\u4e4e\u6ca1\u6709\u671d\u8fd9\u4e2a\u65b9\u5411\u7ee7\u7eed\u52aa\u529b\u3002\u5c3d\u7ba1 COBO \u6a21\u5757\u91ca\u653e\u4e86\u9762\u677f\u7a7a\u95f4\uff0c\u4f46\u5b83\u4eec\u5360\u7528\u4e86\u4e3b PCB \u4e0a\u7684\u5927\u91cf\u7a7a\u95f4\uff08COBO \u6a21\u5757\u5bbd 20 \u6beb\u7c73\uff0c\u957f 60 \u6beb\u7c73\uff09\uff0c\u4e14\u9700\u8981\u81ea\u5df1\u7684\u6563\u70ed\u5668\uff0c\u800c\u4e14\u8fd8\u4e0d\u80fd\u5806\u53e0\u3002<\/span><\/section>\n
\u603b\u800c\u8a00\u4e4b\uff0c\u5728 51.2 T\u8fd9\u4e00\u4ee3\u4e4b\u540e\uff0c\u5916\u5f62\u5c3a\u5bf8\u7684\u53d8\u5316\u662f\u4e0d\u53ef\u907f\u514d\u7684\uff0c\u65e0\u8bba\u662f\u65b0\u7684\u53ef\u63d2\u62d4\u3001\u677f\u8f7d\u6216\u5171\u540c\u5c01\u88c5\u6280\u672f\u4e0b\uff0c\u90fd\u4e0d\u53ef\u907f\u514d\u3002\u8fd9\u7ed9\u65b0\u7684\u4e00\u4e9b\u65b9\u6848\u63d0\u4f9b\u4e86\u673a\u4f1a\u3002<\/span><\/section>\n

4.4 \u529f\u8017<\/span><\/strong><\/h3>\n
\u53ef\u63d2\u62d4\u6a21\u5757\u7684\u4e3b\u8981\u6311\u6218\u662f\u529f\u8017\u3002\u95ee\u9898\u7684\u6838\u5fc3\u5728\u4e8e\u5728 ASIC \u548c\u6a21\u5757\u4e4b\u95f4\u7684\u7535\u901a\u9053\u4e2d\u4fe1\u53f7\u5b8c\u6574\u6027\u906d\u53d7\u5230\u4e86\u6311\u6218\u3002\u8fd9\u4f7f\u5f97\u6a21\u5757\u548c\u4ea4\u6362\u673a ASIC \u7684\u529f\u8017\u4e0d\u65ad\u5347\u9ad8\u3002\u56fe4<\/span>\u663e\u793a\u4e86\u968f\u7740\u4ea4\u6362\u673a\u53d1\u5c55\uff0cSerdes\u529f\u8017\u5728ASIC\u82af\u7247\u4e0a\u529f\u8017\u5360\u6bd4\u7684\u589e\u52a0\u60c5\u51b5\uff0c\u5bf9\u4e8e25.6T\u8fd9\u4e00\u4ee3\u82af\u7247\uff0cSerdes\u529f\u8017\u5360\u6bd4\u8d85\u8fc730%\u3002<\/span><\/section>\n

<\/div><\/span><\/p>\n

\u56fe 4 S<\/span>erdes\u529f\u8017\u5360\u6bd4<\/span><\/p>\n

\u53ef\u63d2\u62d4\u6a21\u5757\u7684\u989d\u5b9a\u529f\u8017\u4ece SFP \u6a21\u5757\u7684 2 W \u589e\u52a0\u5230 QSFP \u6a21\u5757\u7684 3.5 W\uff0c\u73b0\u5728 QSFP-DD\uff08\u529f\u7387\u7b49\u7ea7 8\uff09\u8d85\u8fc7 14 W\uff0cOSFP\uff08\u529f\u7387\u7b49\u7ea7 8\uff09\u8d85\u8fc7 21.1 W\u3002\u5f53\u524d 400G \u6536\u53d1\u5668\u7684\u989d\u5b9a\u529f\u8017\u7ea6\u4e3a 10-12 W <\/span>\u3002<\/section>\n
7nm\u00a0DSP \u82af\u7247\u53ef\u4ee5\u652f\u6301\u57fa\u4e8e 100G \uff08<20\u00a0pJ\/bit<\/span>\uff09\u7535 Serdes \u7684\u4e0b\u4e00\u4ee3 400G \u548c 800G \u6a21\u5757\u3002\u4f46\u5bf9\u4e8e\u5355\u4e2a800G\u6a21\u5757\uff0c\u4e5f\u662f\u8f7b\u677e\u8d85\u8fc7OSFP \u548c QSFP-DD \u989d\u5b9a\u529f\u8017\u9650\u5236\u3002\u8fd9\u610f\u5473\u7740 51.2T\u4ea4\u6362\u673a\u4ec5\u5149\u6a21\u5757\u529f\u8017\u5c31\u5927\u7ea61kW\u3002<\/section>\n
\u5149\u6a21\u5757\u529f\u8017\u7684\u6700\u5927\u8d21\u732e\u8005\u662f\u6a21\u5757\u548cASIC\u4e4b\u95f4\u7684\u7535\u4f20\u8f93\u901a\u9053\u3002\u5728\u5f53\u524d\u7684 400G \u5149\u6a21\u5757\u4e2d\uff0c\u8fd9\u901a\u5e38\u662f\u4e00\u4e2a\u5206\u7acb\u7684\u82af\u7247\uff0c\u5728\u516b\u4e2a\u7535\u901a\u9053\u548c\u56db\u4e2a\u5149\u901a\u9053\u4e4b\u95f4\u6267\u884c\u65f6\u949f\u548c\u6570\u636e\u6062\u590d (CDR)\u3001\u6570\u5b57\u4fe1\u53f7\u5904\u7406 (DSP) \u548cGearbox\u7b49\u529f\u80fd\u3002\u56fe5\u662f<\/span>\u4ee3\u8868\u6027400G\u5149\u6a21\u5757\u7684\u529f\u8017\u5206\u89e3\u56fe\uff0c\u5206\u522b\u5149\u5b66\u5f15\u64ce\uff08\u6fc0\u5149\u5668\u3001\u8c03\u5236\u5668\/\u9a71\u52a8\u5668\u3001\u68c0\u6d4b\u5668\/TIA\uff09\u3001\u7535\u6c14 I\/O\uff08CDR\/DSP\/Gearbox\uff09\u3001\u5fae\u63a7\u5236\u5668\uff08uCtrl\uff09\u548c\u7535\u6e90\u8f6c\u6362\uff08DC\/DC\uff09\u7b49\u3002<\/span><\/section>\n

<\/div><\/span><\/p>\n

\u56fe 5\u00a0<\/strong>400 Gb\/s \u53ef\u63d2\u62d4\u5149\u6a21\u5757\u529f\u8017\u7ec6\u5206<\/span><\/p>\n

\u968f\u7740\u4fe1\u53f7\u901f\u7387\u7684\u589e\u52a0\uff0c\u901a\u9053\u4e0a\u7684\u7535\u635f\u8017\u4e00\u76f4\u5728\u589e\u52a0\u3002\u4ece NRZ \u5230 PAM4 \u7684\u8f6c\u53d8\u4ee5\u8f83\u4f4e\u7684\u4fe1\u566a\u6bd4\u4e3a\u4ee3\u4ef7<\/span>\u63d0\u4f9b\u4e86\u6570\u636e\u901f\u7387\u7684\u589e\u957f\uff0c\u56e0\u6b64\u9700\u8981\u4f7f\u7528FEC\u5c06\u4fe1\u53f7\u52a0\u500d\u81f3 56 Gbd \u4ee5\u83b7\u5f97 112 Gb\/s\u901f\u7387\uff0c\u5bf9\u4e8e\u7ed9\u5b9a\u957f\u5ea6\u7684\u4f4e\u635f\u8017 PCB \u8d70\u7ebf\uff0c\u63d2\u635f\uff08\u4ee5 dB \u4e3a\u5355\u4f4d\uff09\u5927\u7ea6\u4f1a\u52a0\u500d\uff1b\u5373\u4f7f\u4f7f\u7528\u5148\u8fdb\u7684 PCB \u6750\u6599<\/span>\uff0c12″\u00a0trace<\/span>\u572828G Nyquist<\/span>\u9891\u7387\u4e0b\u7684\u63d2\u635f\u4e5f\u4e3a 15\u201320 dB \uff0c\u8fd9\u663e\u7136\u8d85\u51fa\u4e86VSR\u9884\u671f\u3002\u7535\u901a\u9053\u8d8a\u77ed\uff0c\u8f6c\u6362\u8d8a\u5c11\uff0c\u4fe1\u53f7\u5b8c\u6574\u6027\u95ee\u9898\u5c31\u8d8a\u5bb9\u6613\u7ba1\u7406\uff0c\u8fd9\u4fc3\u4f7f\u5c06\u5149\u5b66\u5668\u4ef6\u79fb\u5230\u5185\u90e8\uff0c\u5c3d\u53ef\u80fd\u9760\u8fd1ASIC\u3002<\/section>\n
\u53e6\u5916\uff0c\u6563\u70ed\u6b63\u5728\u6210\u4e3a\u5bc6\u5ea6\u65b9\u9762\u7684\u4e00\u4e2a\u9650\u5236\u56e0\u7d20\uff0c\u5305\u62ec\u4ea4\u6362\u673a\u6563\u70ed\u5668\u7684\u5c3a\u5bf8\u3001\u9762\u677f\u6240\u9700\u7684\u6700\u5c0f\u5f00\u5b54\u7387\u3001\u76d2\u4f53\u673a\u7bb1\u5185\u7684\u6c14\u6d41\u548c\u98ce\u673a\u7b49\u3002<\/span><\/section>\n
\u539f\u5219\u4e0a\uff0cCPO \u4e0d\u4ec5\u53ef\u4ee5\u7b80\u5316\u6a21\u5757\uff0c\u8fd8\u53ef\u4ee5\u7b80\u5316ASIC\uff0c\u4f8b\u5982\u901a\u8fc7\u7528 XSR Serdes \u66ff\u6362 LR serdes\u3002\u7136\u800c\uff0c\u8fd9\u662f\u4ee5\u727a\u7272\u7075\u6d3b\u6027\u4e3a\u4ee3\u4ef7\u7684\u3002\u5373\u4f7f\u91c7\u7528 CPO\uff0cLR \u4e5f\u6709\u4e24\u4e2a\u660e\u786e\u7684\u65b9\u6848\uff0c\u5373\u4e00\u65b9\u9762\u7528\u4e8e\u670d\u52a1\u5668\u8fde\u63a5\u7684\u94dc\u8d28 DAC\uff0c\u53e6\u4e00\u65b9\u9762\u7528\u4e8e\u6570\u636e\u4e2d\u5fc3\u95f4\u94fe\u8def\u7684\u76f8\u5e72\u5149\u5b66 (ZR)\u3002\u7531\u4e8e\u76f8\u5e72\u5149\u5b66\u5728\u77ed\u671f\u5185\u4e0d\u592a\u53ef\u80fd\u9002\u5408\u5171\u5c01\u88c5\u6280\u672f\uff0c\u56e0\u6b64\u6b64\u7c7b\u7aef\u53e3\u4ecd\u7136\u9700\u8981\u652f\u6301\u53ef\u63d2\u62d4\u3002<\/span><\/section>\n
\u53e6\u4e00\u79cd\u65b9\u6cd5\u662f\u5229\u7528\u5f3a\u5927\u7684ASIC\u80fd\u529b\u6765\u5927\u5e45\u7b80\u5316\u5149\u5f15\u64ce\uff08\u6d88\u9664 CDR\uff09\u3002CPO \u4f9b\u5e94\u5546\u9700\u8981\u4e0e\u4ea4\u6362\u673a\u4f9b\u5e94\u5546\u5bc6\u5207\u5408\u4f5c\uff0c\u5171\u540c\u8bbe\u8ba1\u6700\u9ad8\u5bc6\u5ea6\u548c\u6700\u4f4e\u529f\u8017\u7684\u6574\u4f53\u89e3\u51b3\u65b9\u6848\u3002<\/span><\/section>\n

\u672a\u5b8c\u5f85\u7eed……<\/span><\/span><\/span><\/p>\n

\n

5 \u79fb\u52a8\u5149\u5668\u4ef6\u5230\u5185\u90e8<\/span><\/span><\/p>\n

5.1 \u677f\u8f7d\u5149\u5b66\u6280\u672f<\/span><\/span><\/p>\n

5.2 \u5171\u5c01\u88c5\u5149\u5b66\u6280\u672f<\/span><\/span><\/h3>\n

5.3 \u65b9\u6848\u4e0e\u8def\u5f84<\/span><\/span><\/h3>\n

5.3.1 \u94dc<\/span><\/h4>\n

5.3.2 \u5149\u5b66PMD<\/span><\/h4>\n

5.3.3 \u53ef\u8fbe\u6027<\/span><\/h4>\n

5.3.4 \u751f\u6001\u7cfb\u7edf<\/span><\/h4>\n

5.3.5 \u6210\u719f\u5ea6<\/span><\/h4>\n

5.4 \u6807\u51c6\u5316<\/span><\/span><\/h3>\n

5.5 CPO \u8981\u6c42<\/span><\/span><\/h3>\n

5.6 \u5149\u5b50\u96c6\u6210<\/span><\/span><\/h3>\n

6 \u7f51\u7edc\u67b6\u6784\u6f14\u8fdb<\/span><\/span><\/h2>\n

7 \u7ed3\u8bba<\/span><\/span><\/h2>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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