\n\t\u4ecb\u7535\u5c42\uff08Dielectric\uff09\uff1a\u7528\u6765\u4fdd\u6301\u7ebf\u8def\u53ca\u5404\u5c42\u4e4b\u95f4\u7684\u7edd\u7f18\u6027\uff0c\u4fd7\u79f0\u4e3a\u57fa\u6750\u3002<\/p>\n
\n\t\u5b54\uff08Through hole \/ via\uff09\uff1a\u5bfc\u901a\u5b54\u53ef\u4f7f\u4e24\u5c42\u6b21\u4ee5\u4e0a\u7684\u7ebf\u8def\u5f7c\u6b64\u5bfc\u901a\uff0c\u8f83\u5927\u7684\u5bfc\u901a\u5b54\u5219\u505a\u4e3a\u96f6\u4ef6\u63d2\u4ef6\u7528\uff0c\u53e6\u5916\u6709\u975e\u5bfc\u901a\u5b54\uff08nPTH\uff09\u901a\u5e38\u7528\u6765\u4f5c\u4e3a\u8868\u9762\u8d34\u88c5\u5b9a\u4f4d\uff0c\u7ec4\u88c5\u65f6\u56fa\u5b9a\u87ba\u4e1d\u7528\u3002<\/p>\n
\n\t\u9632\u710a\u6cb9\u58a8\uff08Solder resistant \/Solder Mask\uff09\uff1a\u5e76\u975e\u5168\u90e8\u7684\u94dc\u9762\u90fd\u8981\u5403\u9521\u4e0a\u96f6\u4ef6\uff0c\u56e0\u6b64\u975e\u5403\u9521\u7684\u533a\u57df\uff0c\u4f1a\u5370\u4e00\u5c42\u9694\u7edd\u94dc\u9762\u5403\u9521\u7684\u7269\u8d28\uff08\u901a\u5e38\u4e3a\u73af\u6c27\u6811\u8102\uff09\uff0c\u907f\u514d\u975e\u5403\u9521\u7684\u7ebf\u8def\u95f4\u77ed\u8def\u3002\u6839\u636e\u4e0d\u540c\u7684\u5de5\u827a\uff0c\u5206\u4e3a\u7eff\u6cb9\u3001\u7ea2\u6cb9\u3001\u84dd\u6cb9\u3002<\/p>\n
\n\t\u4e1d\u5370\uff08Legend \/Marking\/Silk screen\uff09\uff1a\u6b64\u4e3a\u975e\u5fc5\u8981\u4e4b\u6784\u6210\uff0c\u4e3b\u8981\u7684\u529f\u80fd\u662f\u5728\u7535\u8def\u677f\u4e0a\u6807\u6ce8\u5404\u96f6\u4ef6\u7684\u540d\u79f0\u3001\u4f4d\u7f6e\u6846\uff0c\u65b9\u4fbf\u7ec4\u88c5\u540e\u7ef4\u4fee\u53ca\u8fa8\u8bc6\u7528\u3002<\/p>\n
\n\t\u8868\u9762\u5904\u7406\uff08Surface Finish\uff09\uff1a\u7531\u4e8e\u94dc\u9762\u5728\u4e00\u822c\u73af\u5883\u4e2d\uff0c\u5f88\u5bb9\u6613\u6c27\u5316\uff0c\u5bfc\u81f4\u65e0\u6cd5\u4e0a\u9521\uff08\u710a\u9521\u6027\u4e0d\u826f\uff09\uff0c\u56e0\u6b64\u4f1a\u5728\u8981\u5403\u9521\u7684\u94dc\u9762\u4e0a\u8fdb\u884c\u4fdd\u62a4\u3002\u4fdd\u62a4\u7684\u65b9\u5f0f\u6709\u55b7\u9521\uff08HASL\uff09\uff0c\u5316\u91d1\uff08ENIG\uff09\uff0c\u5316\u94f6\uff08Immers<\/u>ion Silver\uff09\uff0c\u5316\u9521\uff08Immersion TI<\/u>n\uff09\uff0c\u6709\u673a\u4fdd\u710a\u5242\uff08OSP\uff09\uff0c\u65b9\u6cd5\u5404\u6709\u4f18\u7f3a\u70b9\uff0c\u7edf\u79f0\u4e3a\u8868\u9762\u5904\u7406\u3002<\/p>\n
\n\tPCB\u677f\u7279\u70b9<\/p>\n
\n\t\u53ef\u9ad8\u5bc6\u5ea6\u5316\u3002\u6570\u5341\u5e74\u6765\uff0c\u5370\u5236\u677f\u9ad8\u5bc6\u5ea6\u80fd\u591f\u968f\u7740\u96c6\u6210\u7535\u8def\u96c6\u6210\u5ea6\u63d0\u9ad8\u548c\u5b89\u88c5\u6280\u672f\u8fdb\u6b65\u800c\u53d1\u5c55\u7740\u3002<\/p>\n
\n\t\u9ad8\u53ef\u9760\u6027\u3002\u901a\u8fc7\u4e00\u7cfb\u5217\u68c0\u67e5\u3001\u6d4b\u8bd5\u548c\u8001\u5316\u8bd5\u9a8c\u7b49\u53ef\u4fdd\u8bc1PCB\u957f\u671f\uff08\u4f7f\u7528\u671f\uff0c\u4e00\u822c\u4e3a20\u5e74\uff09\u800c\u53ef\u9760\u5730\u5de5\u4f5c\u7740\u3002<\/p>\n
\n\t\u53ef\u8bbe\u8ba1\u6027\u3002\u5bf9PCB\u5404\u79cd\u6027\u80fd\uff08\u7535\u6c14\u3001\u7269\u7406\u3001\u5316\u5b66\u3001\u673a\u68b0\u7b49\uff09\u8981\u6c42\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u8ba1\u6807\u51c6\u5316\u3001\u89c4\u8303\u5316\u7b49\u6765\u5b9e\u73b0\u5370\u5236\u677f\u8bbe\u8ba1\uff0c\u65f6\u95f4\u77ed\u3001\u6548\u7387\u9ad8\u3002<\/p>\n
\n\t\u53ef\u751f\u4ea7\u6027\u3002\u91c7\u7528\u73b0\u4ee3\u5316\u7ba1\u7406\uff0c\u53ef\u8fdb\u884c\u6807\u51c6\u5316\u3001\u89c4\u6a21\uff08\u91cf\uff09\u5316\u3001\u81ea\u52a8\u5316\u7b49\u751f\u4ea7\u3001\u4fdd\u8bc1\u4ea7\u54c1\u8d28\u91cf\u4e00\u81f4\u6027\u3002<\/p>\n
\n\t\u53ef\u6d4b\u8bd5\u6027\u3002\u5efa\u7acb\u4e86\u6bd4\u8f83\u5b8c\u6574\u6d4b\u8bd5\u65b9\u6cd5\u3001\u6d4b\u8bd5\u6807\u51c6\u3001\u5404\u79cd\u6d4b\u8bd5\u8bbe\u5907\u4e0e\u4eea\u5668\u7b49\u6765\u68c0\u6d4b\u5e76\u9274\u5b9aPCB\u4ea7\u54c1\u5408\u683c\u6027\u548c\u4f7f\u7528\u5bff\u547d\u3002<\/p>\n
\n\t\u53ef\u7ec4\u88c5\u6027\u3002PCB\u4ea7\u54c1\u65e2\u4fbf\u4e8e\u5404\u79cd\u5143\u4ef6\u8fdb\u884c\u6807\u51c6\u5316\u7ec4\u88c5\uff0c\u53c8\u53ef\u4ee5\u8fdb\u884c\u81ea\u52a8\u5316\u3001\u89c4\u6a21\u5316\u6279\u91cf\u751f\u4ea7\u3002\u540c\u65f6\uff0cPCB\u548c\u5404\u79cd\u5143\u4ef6\u7ec4\u88c5\u90e8\u4ef6\u8fd8\u53ef\u7ec4\u88c5\u5f62\u6210\u66f4\u5927\u90e8\u4ef6\u3001\u7cfb\u7edf\uff0c\u76f4\u81f3\u6574\u673a\u3002<\/p>\n
\n\t\u53ef\u7ef4\u62a4\u6027\u3002\u7531\u4e8ePCB\u4ea7\u54c1\u548c\u5404\u79cd\u5143\u4ef6\u7ec4\u88c5\u90e8\u4ef6\u662f\u4ee5\u6807\u51c6\u5316\u8bbe\u8ba1\u4e0e\u89c4\u6a21\u5316\u751f\u4ea7\uff0c\u56e0\u800c\uff0c\u8fd9\u4e9b\u90e8\u4ef6\u4e5f\u662f\u6807\u51c6\u5316\u3002\u6240\u4ee5\uff0c\u4e00\u65e6\u7cfb\u7edf\u53d1\u751f\u6545\u969c\uff0c\u53ef\u4ee5\u5feb\u901f\u3001\u65b9\u4fbf\u3001\u7075\u6d3b\u5730\u8fdb\u884c\u66f4\u6362\uff0c\u8fc5\u901f\u6062\u670d\u7cfb\u7edf\u5de5\u4f5c\u3002\u5f53\u7136\uff0c\u8fd8\u53ef\u4ee5\u4e3e\u4f8b\u8bf4\u5f97\u66f4\u591a\u4e9b\u3002\u5982\u4f7f\u7cfb\u7edf\u5c0f\u578b\u5316\u3001\u8f7b\u91cf\u5316\uff0c\u4fe1\u53f7\u4f20\u8f93\u9ad8\u901f\u5316\u7b49\u3002<\/p>\n
\n\t![](\"http:\/\/www.szryc.com\/uploads\/allimg\/181017\/10502R147-0.jpg\")
<\/p>\n
\n\t\u96c6\u6210\u7535\u8def\u5177\u6709\u4f53\u79ef\u5c0f\uff0c\u91cd\u91cf\u8f7b\uff0c\u5f15\u51fa\u7ebf\u548c\u710a\u63a5\u70b9\u5c11\uff0c\u5bff\u547d\u957f\uff0c\u53ef\u9760\u6027\u9ad8\uff0c\u6027\u80fd\u597d\u7b49\u4f18\u70b9\uff0c\u540c\u65f6\u6210\u672c\u4f4e\uff0c\u4fbf\u4e8e\u5927\u89c4\u6a21\u751f\u4ea7\u3002\u5b83\u4e0d\u4ec5\u5728\u5de5\u3001\u6c11\u7528\u7535\u5b50\u8bbe\u5907\u5982\u6536\u5f55\u673a\u3001\u7535\u89c6\u673a\u3001\u8ba1\u7b97\u673a\u7b49\u65b9\u9762\u5f97\u5230\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u540c\u65f6\u5728\u519b\u4e8b\u3001\u901a\u8baf\u3001\u9065\u63a7\u7b49\u65b9\u9762\u4e5f\u5f97\u5230\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u7528\u96c6\u6210\u7535\u8def\u6765\u88c5\u914d\u7535\u5b50\u8bbe\u5907\uff0c\u5176\u88c5\u914d\u5bc6\u5ea6\u6bd4\u6676\u4f53\u7ba1<\/u>\u53ef\u63d0\u9ad8\u51e0\u5341\u500d\u81f3\u51e0\u5343\u500d\uff0c\u8bbe\u5907\u7684\u7a33\u5b9a\u5de5\u4f5c\u65f6\u95f4\u4e5f\u53ef\u5927\u5927\u63d0\u9ad8\u3002<\/p>\n
\n\t\u96c6\u6210\u7535\u8def\u5e94\u7528\u5b9e\u4f8b<\/p>\n
\n\t1\u3001555\u89e6\u6478\u5b9a\u65f6\u5f00\u5173<\/p>\n
\n\t\u96c6\u6210\u7535\u8defIC1\u662f\u4e00\u7247555\u5b9a\u65f6\u7535\u8def\uff0c\u5728\u8fd9\u91cc\u63a5\u6210\u5355\u7a33\u6001\u7535\u8def\u3002\u5e73\u65f6\u7531\u4e8e\u89e6\u6478\u7247P\u7aef\u65e0\u611f\u5e94\u7535\u538b\uff0c\u7535\u5bb9<\/u>C1\u901a\u8fc7555\u7b2c7\u811a\u653e\u7535\u5b8c\u6bd5\uff0c\u7b2c3\u811a\u8f93\u51fa\u4e3a\u4f4e\u7535\u5e73\uff0c\u7ee7\u7535\u5668KS\u91ca\u653e\uff0c\u7535\u706f\u4e0d\u4eae\u3002<\/p>\n
\n\t\u5f53\u9700\u8981\u5f00\u706f\u65f6\uff0c\u7528\u624b\u89e6\u78b0\u4e00\u4e0b\u91d1\u5c5e\u7247P\uff0c\u4eba\u4f53\u611f\u5e94\u7684\u6742\u6ce2\u4fe1\u53f7\u7535\u538b\u7531C2\u52a0\u81f3555\u7684\u89e6\u53d1\u7aef\uff0c\u4f7f555\u7684\u8f93\u51fa\u7531\u4f4e\u53d8\u6210\u9ad8\u7535\u5e73\uff0c\u7ee7\u7535\u5668KS\u5438\u5408\uff0c\u7535\u706f\u70b9\u4eae\u3002\u540c\u65f6\uff0c555\u7b2c7\u811a\u5185\u90e8\u622a\u6b62\uff0c\u7535\u6e90\u4fbf\u901a\u8fc7R1\u7ed9C1\u5145\u7535\uff0c\u8fd9\u5c31\u662f\u5b9a\u65f6\u7684\u5f00\u59cb\u3002<\/p>\n
\n\t\u5f53\u7535\u5bb9C1\u4e0a\u7535\u538b\u4e0a\u5347\u81f3\u7535\u6e90\u7535\u538b\u76842\/3\u65f6\uff0c555\u7b2c7\u811a\u9053\u901a\u4f7fC1\u653e\u7535\uff0c\u4f7f\u7b2c3\u811a\u8f93\u51fa\u7531\u9ad8\u7535\u5e73\u53d8\u56de\u5230\u4f4e\u7535\u5e73\uff0c\u7ee7\u7535\u5668\u91ca\u653e\uff0c\u7535\u706f\u7184\u706d\uff0c\u5b9a\u65f6\u7ed3\u675f\u3002<\/p>\n
\n\t\u5b9a\u65f6\u957f\u77ed\u7531R1\u3001C1\u51b3\u5b9a\uff1aT1=1.1R1*C1\u3002\u6309\u56fe\u4e2d\u6240\u6807\u6570\u503c\uff0c\u5b9a\u65f6\u65f6\u95f4\u7ea6\u4e3a4\u5206\u949f\u3002D1\u53ef\u9009\u75281N4148\u62161N4001\u3002<\/p>\n
\n\t![](\"http:\/\/www.szryc.com\/uploads\/allimg\/181017\/10502W3S-1.jpg\")
<\/p>\n
\n\t2\u3001\u5355\u7535\u6e90\u53d8\u53cc\u7535\u6e90\u7535\u8def<\/p>\n
\n\t\u9644\u56fe\u7535\u8def\u4e2d\uff0c\u65f6\u57fa\u7535\u8def555\u63a5\u6210\u65e0\u7a33\u6001\u7535\u8def\uff0c3\u811a\u8f93\u51fa\u9891\u7387\u4e3a20KHz\u3001\u5360\u7a7a\u6bd4\u4e3a1\uff1a1\u7684\u65b9\u6ce2\u30023\u811a\u4e3a\u9ad8\u7535\u5e73\u65f6\uff0cC4\u88ab\u5145\u7535\uff1b\u4f4e\u7535\u5e73\u65f6\uff0cC3\u88ab\u5145\u7535\u3002\u7531\u4e8eVD1\u3001VD2\u7684\u5b58\u5728\uff0cC3\u3001C4\u5728\u7535\u8def\u4e2d\u53ea\u5145\u7535\u4e0d\u653e\u7535\uff0c\u5145\u7535\u6700\u5927\u503c\u4e3aEC\uff0c\u5c06B\u7aef\u63a5\u5730\uff0c\u5728A\u3001C\u4e24\u7aef\u5c31\u5f97\u5230+\/-EC\u7684\u53cc\u7535\u6e90\u3002\u672c\u7535\u8def\u8f93\u51fa\u7535\u6d41<\/u>\u8d85\u8fc750mA\u3002<\/p>\n
\n\t![](\"http:\/\/www.szryc.com\/uploads\/allimg\/181017\/10502Q146-2.jpg\")
<\/p>\n
\n\t\u96c6\u6210\u7535\u8def\u662f\u4e00\u822c\u662f\u6307\u82af\u7247\u7684\u96c6\u6210\uff0c\u50cf\u4e3b\u677f\u4e0a\u7684\u5317\u6865\u82af\u7247\uff0cCPU<\/u>\u5185\u90e8\uff0c\u90fd\u662f\u53eb\u96c6\u6210\u7535\u8def\uff0c\u539f\u59cb\u540d\u4e5f\u662f\u53eb\u96c6\u6210\u5757\u7684\u3002\u800c\u5370\u5237\u7535\u8def\u662f\u6307\u6211\u4eec\u901a\u5e38\u770b\u5230\u7684\u7535\u8def\u677f\u7b49\uff0c\u8fd8\u6709\u5728\u7535\u8def\u677f\u4e0a\u5370\u5237\u710a\u63a5\u82af\u7247\u3002<\/p>\n
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