{"id":2726,"date":"2021-08-28T11:36:47","date_gmt":"2021-08-28T03:36:47","guid":{"rendered":"http:\/\/www.51cos.com\/?p=2726"},"modified":"2021-08-28T12:29:29","modified_gmt":"2021-08-28T04:29:29","slug":"%e5%a4%a9%e7%ba%bf%e6%8e%a5%e6%94%b6%e7%81%b5%e6%95%8f%e5%ba%a6%ef%bc%8c%e5%8f%97%e5%88%b0%e7%94%b5%e7%a3%81%e5%b9%b2%e6%89%b0%e5%bd%b1%e5%93%8d%e4%bc%9a%e5%a6%82%e4%bd%95%e6%94%b9%e5%96%84%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/www.51cos.com\/?p=2726","title":{"rendered":"\u5929\u7ebf\u63a5\u6536\u7075\u654f\u5ea6\uff0c\u53d7\u5230\u7535\u78c1\u5e72\u6270\u5f71\u54cd\u4f1a\u5982\u4f55\u6539\u5584\uff1f"},"content":{"rendered":"

 <\/p>\n

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\u5448\u73b0\u95ee\u9898\uff1a<\/strong><\/p>\n

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\u5206\u6790\u95ee\u9898\uff1a<\/strong><\/p>\n

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\u89e3\u51b3\u95ee\u9898\uff1a<\/strong><\/p>\n

1.\u5982\u4e0b\u56fe\uff0c\u5206\u522b\u5728MCLK\u548cPCLK\u7ebf\u4e0a\u4e32120\u03a9\u78c1\u73e0\uff0cMCLK\u7684\u78c1\u73e0\u9760\u8fd1\u82af\u7247\u7aef\uff0cPCLK\u7ebf\u4e0a\u7684\u78c1\u73e0\u4e32\u5728\u6444\u50cf\u5934\u7aef\uff0c\u641c\u661f\u6570\u548c\u661f\u503c\u6709\u4e00\u5b9a\u7684\u63d0\u5347\u3002<\/p>\n

\u5c0f\u7ed3\uff1a\u78c1\u73e0\u653e\u7f6e\u7684\u4f4d\u7f6e\u662f\u9760\u8fd1\u6e90\u7aef\uff0c\u8fd9\u6837\u5c31\u51cf\u5f31\u4e86\u4e2d\u95f4\u90e8\u5206\u8d70\u7ebf\u7684\u8f90\u5c04\u548c\u8026\u5408\u5e72\u6270\u3002MCLK\u7531\u82af\u7247\u7ed9\u51fa\uff0c\u800cPCLK\u7531\u6444\u50cf\u5934\u53d1\u51fa\u3002<\/strong><\/p>\n

\"\u5929\u7ebf\u63a5\u6536\u7075\u654f\u5ea6\uff0c\u53d7\u5230\u7535\u78c1\u5e72\u6270\u5f71\u54cd\u4f1a\u53d1\u751f\u4ec0\u4e48\uff0c3\u4e2a\u6848\u4f8b\u5206\u6790\"<\/div>\n

2. \u5982\u4e0b\u56fe\uff0cDC-DC\u8f93\u51fa\u7aef\u589e\u52a0\u4e00\u989710pF\u7684\u7535\u5bb9\uff0c\u7136\u540e\u5728\u7535\u5bb9\u540e\u4e32120\u03a9\u7684\u78c1\u73e0\u6ee4\u9664\u7eb9\u6ce2\uff0c\u6700\u540eGPS\u641c\u661f\u6570\u548c\u661f\u503c\u8fbe\u6807\u3002<\/p>\n

\u5c0f\u7ed3\uff1a\u901a\u8fc7\u8ba1\u7b97\uff0c10pF\u5de6\u53f3\u7684\u7535\u5bb9\u6ee4\u96641.575GHz\u7684\u9891\u7387\u6548\u8fc7\u6700\u4f73\uff0c\u800c\u78c1\u73e0\u7684\u5927\u5c0f\u548c\u653e\u7f6e\u7684\u4f4d\u7f6e\u4f1a\u5f71\u54cdDC-DC\u7684\u8f6c\u6362\u6548\u7387\uff0c\u78c1\u73e0\u4e00\u822c\u653e\u7f6e\u5728\u7535\u5bb9\u4e4b\u540e\u3002<\/strong><\/p>\n

\"\u5929\u7ebf\u63a5\u6536\u7075\u654f\u5ea6\uff0c\u53d7\u5230\u7535\u78c1\u5e72\u6270\u5f71\u54cd\u4f1a\u53d1\u751f\u4ec0\u4e48\uff0c3\u4e2a\u6848\u4f8b\u5206\u6790\"<\/div>\n

\u603b\u7ed3\uff1a\u4ea7\u54c1\u5185\u90e8\u5e38\u89c1\u7684\u7535\u78c1\u5e72\u6270\u6709DDR\u3001\u5c4f\u3001\u6444\u50cf\u5934\u7b49\u65f6\u949f\u7684\u8c10\u6ce2\u566a\u58f0\u548cDC-DC\u7eb9\u6ce2\u566a\u58f0\u3001\u5730\u566a\u58f0\u7b49\u3002PCB\u8bbe\u8ba1\u521d\u671f\u9700\u8003\u8651EMC\u8bbe\u8ba1\uff0c\u5e03\u597d\u5c40\u3001\u5e03\u597d\u7ebf\uff0c\u9ad8\u9891\u4fe1\u53f7\u7ebf\u8bbe\u8ba1\u4e32\u5171\u6a21\u7535\u611f\u6216\u78c1\u73e0\u7684\u4f4d\u7f6e\uff0c\u7535\u538b\u7ebf\u8bbe\u8ba1\u4e32\u78c1\u73e0\u548c\u5e76\u7535\u5bb9\u4f4d\u7f6e\u7b49\u7b49\uff0c\u907f\u514d\u518d\u6b21\u6539\u677f\uff0c\u7f29\u77ed\u7814\u53d1\u5468\u671f\u3002<\/p>\n

\u6765\u6e90\uff1a\u6df1\u5733\u5e02\u76db\u90a6\u5c14\u79d1\u6280\u6709\u9650\u516c\u53f8<\/p>\n

 <\/p>\n

\u7535\u78c1\u517c\u5bb9\u6027(EMC)\u662f\u6307\u8bbe\u5907\u6216\u7cfb\u7edf\u5728\u7535\u78c1\u73af\u5883\u4e2d\u7b26\u5408\u8981\u6c42\u8fd0\u884c\u5e76\u4e0d\u5bf9\u5176\u73af\u5883\u4e2d\u7684\u4efb\u4f55\u8bbe\u5907\u4ea7\u751f\u65e0\u6cd5\u5fcd\u53d7\u7684\u7535\u78c1\u5e72\u6270\u80fd\u529b\uff0c\u7535\u78c1\u517c\u5bb9(EMC)\u5305\u542b\u7535\u78c1\u5e72\u6270(EMI)\u548c\u7535\u78c1\u6297\u6270\u5ea6(EMS)\u3002\u5176\u5305\u542b\u7684\u6d4b\u8bd5\u9879\u76ee\u5982\u56fe1\u6240\u793a\u3002<\/p>\n

\"DC-DC\u5f00\u5173\u7535\u6e90EMI\u5206\u6790\u4e0e\u4f18\u5316\u8bbe\u8ba1\"<\/div>\n
<\/div>\n
DCDC\u7684\u786e\u4f1a\u5f71\u54cd\u63a5\u6536\u7075\u654f\u5ea6\uff0c\u9a8c\u8bc1\u7684\u65b9\u6cd5\u5c31\u662f\u5148\u628aDCDC\u53bb\u6389\uff0c\u7528\u7535\u6e90\u4ee3\u66ff\uff0c\u6d4b\u63a5\u6536\u7075\u654f\u5ea6\uff0c\u5982\u679c\u6ca1\u95ee\u9898\uff0c\u518d\u628aDCDC\u590d\u539f\uff0c\u518d\u6d4b\u7075\u654f\u5ea6\uff0c\u53d8\u5dee\uff0c\u5c31\u662fDCDC\u9020\u6210\u7684\u3002
\n\u9ad8\u901f\u7684\u5f00\u5173\u4fe1\u53f7\uff0c\u4e0a\u5347\u6cbf\u5f88\u9661\u5ced\uff0c\u542b\u6709\u975e\u5e38\u4e30\u5bcc\u7684\u9891\u8c31\uff0c\u6070\u597d\u843d\u5728\u63a5\u6536\u4fe1\u53f7\u9891\u6bb5\u4e0a\uff0c\u5c31\u5f62\u6210\u5e72\u6270\u3002\u89e3\u51b3\u529e\u6cd5\u5c31\u662f\u7528\u5c4f\u853d\u7f69\u628aDCDC\u7535\u8def\u5c4f\u853d\u8d77\u6765\uff0c\u5e76\u4e14\u5e03\u5c40\u4e0a\u5c3d\u91cf\u8fdc\u79bb\u63a5\u6536\u7535\u8def\u548c\u5929\u7ebf\u3002<\/div>\n
<\/div>\n
\n

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\u539f\u56e01\uff1a\u6a21\u5757\u5728\u4f7f\u7528\u65f6\uff0c\u8d1f\u8f7d\u4e3a\u52a8\u6001\u8d1f\u8f7d\uff0c\u4f7f\u5f97\u6a21\u5757\u8f93\u51fa\u7535\u538b\u5cf0\u5cf0\u503c\u53d8\u5927\uff0c\u4f46\u6ce8\u610f\u8fd9\u4e0d\u662f\u7eb9\u6ce2\u566a\u58f0\u3002<\/strong><\/p>\n

\u5f53\u8d1f\u8f7d\u7535\u6d41\u5982\u679c\u8fdb\u884c\u5468\u671f\u6027\u7a81\u53d8\u65f6\uff0c\u6a21\u5757\u8f93\u51fa\u7535\u538b\u7684\u5cf0\u5cf0\u503c\u4f1a\u53d8\u5927\u3002\u8fd9\u662f\u4e00\u4e2a\u77ac\u6001\u91cf\uff0c\u4f46\u6709\u65f6\u4f1a\u88ab\u8bef\u4ee5\u4e3a\u662f\u7eb9\u6ce2\u566a\u58f0\u3002\u6240\u4ee5\u5f53\u4f7f\u7528\u4e00\u4e2a\u7535\u6e90\u6a21\u5757\u7ed9\u591a\u4e2a\u7535\u8def\u5355\u5143\u4f9b\u7535\u65f6\uff0c\u5bf9\u4e8e\u6709\u5468\u671f\u6027\u8d1f\u8f7d\u53d8\u5316\u7684\u7535\u8def\uff0c\u524d\u7ea7\u9700\u8981\u589e\u52a0\u03c0\u578b\u6ee4\u6ce2\uff0c\u51cf\u5c0f\u8fd9\u90e8\u5206\u7535\u8def\u7684\u77ac\u6001\u53d8\u5316\u5bf9\u5176\u4ed6\u7535\u8def\u7684\u5e72\u6270\u3002<\/p>\n

\u4f8b\u5982\uff0c\u4e0b\u56fe\u4e2d\u7535\u8defB\u7531\u4e8e\u8d1f\u8f7d\u5927\u5c0f\u7684\u53d8\u5316\uff0c\u4f7f\u5f97\u8f93\u5165\u7535\u538b\u6ce2\u52a8\u3002\u4e3a\u4e86\u51cf\u5c0f\u7535\u8defB\u5bf9\u7535\u8defA\u7684\u5e72\u6270\uff0c\u5efa\u8bae\u5728\u7535\u8defB\u7684\u8f93\u5165\u7aef\u589e\u52a0\u03c0\u578b\u6ee4\u6ce2\u3002<\/p>\n

\"\"<\/p>\n

\u56fe1 \u7535\u8def\u94fe\u63a5\u6846\u56fe<\/p>\n

\u539f\u56e02\uff1a\u793a\u6ce2\u5668\u5730\u7ebf\u95ee\u9898<\/strong><\/p>\n

\u5728\u6d4b\u8bd5\u7535\u6e90\u8f93\u51fa\u7684\u7eb9\u6ce2\u566a\u58f0\u65f6\uff0c\u793a\u6ce2\u5668\u7684\u5730\u7ebf\u5939\u548c\u5730\u7ebf\u3001\u6a21\u5757\u8f93\u51fa\u5f15\u811a\u5f62\u6210\u4e00\u4e2a\u73af\u8def\uff0c\u7c7b\u4f3c\u4e8e\u5929\u7ebf\u63a5\u6536\u5668\uff0c\u4f1a\u5f15\u5165\u5176\u4ed6\u566a\u58f0\u3002\u5982\u679c\u6d4b\u8bd5\u7684\u73af\u5883\u5e72\u6270\u5927\uff0c\u8fd9\u79cd\u566a\u58f0\u4e5f\u4f1a\u7531\u793a\u6ce2\u5668\u5f15\u5165\uff0c\u5f71\u54cd\u7eb9\u6ce2\u566a\u58f0\u6d4b\u8bd5\u7684\u7ed3\u679c\u3002<\/p>\n

\u4e14\u5e73\u5e38\u6211\u4eec\u8d2d\u4e70\u7684\u793a\u6ce2\u5668\u63a2\u5934\u7684\u5730\u4e0e\u793a\u6ce2\u5668\u5185\u90e8\u7684\u5927\u5730\u7ebf\u76f8\u8fde\uff0c\u8fd9\u79cd\u60c5\u51b5\u5bf9\u5de5\u9891\u5e72\u6270\u7684\u6297\u6270\u80fd\u529b\u5f31\uff0c\u5bb9\u6613\u5f15\u5165\u5e72\u6270\u566a\u58f0\u3002\u6240\u4ee5\u5728\u4f7f\u7528\u4e2d\u6700\u597d\u4fdd\u8bc1\u793a\u6ce2\u5668\u63a2\u5934\u6d6e\u5730\u5904\u7406\uff08\u9694\u79bb\u5f00\u793a\u6ce2\u5668\u7684\u7535\u6e90\u5730\uff0c\u6216\u8005\u76f4\u63a5\u4f7f\u7528\u7535\u6c60\u4f9b\u7535\u7684\u793a\u6ce2\u5668\uff09\uff0c\u51cf\u5c11\u5f15\u5165\u7684\u5e72\u6270\u3002\u5982\u679c\u6d4b\u91cf\u5bf9\u8c61\u7684\u4f9b\u7535\u7535\u6e90\u4e5f\u662f\u6d6e\u5730\uff0c\u8fd9\u6837\u66f4\u597d\uff0c\u8fd9\u6837\u5c31\u4e0d\u4f1a\u5bfc\u81f4\u7535\u8def\u7279\u6027\u7684\u6539\u53d8\uff0c\u4f7f\u6a21\u5757\u8f93\u51fa\u566a\u58f0\u589e\u5927\u3002<\/p>\n<\/div>\n

DCDC\u7684\u5f00\u5173\u9891\u7387\u5e72\u6270\uff0c\u8fd8\u662fDCDC\u7684\u8f93\u51fa\u7eb9\u6ce2\u592a\u5927\u5bfc\u81f4\u7684\u5e72\u6270\uff0c\u5982\u679c\u662f\u524d\u8005\uff0c\u5c31\u9700\u8981\u505a\u597d\u5c4f\u853d\uff0c\u53ef\u4ee5\u7528\u5c4f\u853d\u6750\u6599\uff0c\u6216\u8005\u91d1\u5c5e\u7f69\u8986\u76d6\u90fd\u662f\u6700\u6709\u6548\u7684\u89e3\u51b3\u529e\u6cd5\uff0c\u5982\u679c\u662f\u7eb9\u6ce2\u5e72\u6270\uff0c\u53ef\u4ee5\u5728\u540e\u7ea7\u52a0\u4e00\u9897\u9ad8\u7eb9\u6ce2\u6291\u5236\u6bd4\u7684LDO\uff0c\u5723\u90a6\u5fae\u7684\u9ad8\u7eb9\u6ce2\u6291\u5236\u6bd4Ldo SGM2033\uff0c\u7eb9\u6ce2\u6291\u5236\u6bd490dB\uff0c\u975e\u5e38\u9002\u5408\u5904\u7406\u7eb9\u6ce2\u7684\u95ee\u9898\u3002<\/p>\n

 <\/p>\n

DC-DC\u6a21\u5757\u672c\u8eab\u7684\u5f00\u5173\u9891\u7387\u4e00\u822c\u4e0d\u4f1a\u8d85\u8fc710MHz\uff0c\u4e00\u822c\u4e0d\u4f1a\u4ea7\u751f\u76f4\u63a5\u7684\u5c04\u9891\u5e72\u6270\u3002<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

  \u540d\u8bcd\u5b9a\u4e49\uff08 TRP : \u53d1\u5c04\u529f\u7387\uff0cTIS : \u63a5\u6536\u7075\u654f\u5ea6\uff09 \u5728\u65e0\u7ebf\u7f51\u7edc\u4e2d\uff0c\u5c04\u9891\u6a21\u5757\u6709\u4f20\u5bfcTRP\u548c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-2726","post","type-post","status-publish","format-standard","hentry","category-embedded"],"_links":{"self":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts\/2726","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2726"}],"version-history":[{"count":3,"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts\/2726\/revisions"}],"predecessor-version":[{"id":2768,"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts\/2726\/revisions\/2768"}],"wp:attachment":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2726"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2726"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2726"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}