\u3010\u6377\u591a\u90a6PCB\u3011 1.\u7535\u78c1\u517c\u5bb9\u6d4b\u8bd5\u7684\u4e00\u822c\u5b9a\u4e49<\/p>\n
\u8003\u8651\u5230\u7535\u78c1\u517c\u5bb9\u6d4b\u8bd5\u7684\u76f4\u63a5\u539f\u56e0\u53d6\u51b3\u4e8e\u5e72\u6270\u4fe1\u53f7\u7684\u5b58\u6709\u3002\u5e72\u6270\u4fe1\u53f7(Electromagnetic Interference\uff0c\u901a\u79f0EMI)\u662f\u6bc1\u706d\u6027\u7535\u80fd\u4ece\u4e00\u4e2a\u7535\u5b50\u4ea7\u54c1\u6839\u636e\u8f90\u5c04\u6e90\u6216\u4f20\u8f93\u4f20\u5165\u53e6\u4e00\u4e2a\u7535\u5b50\u7684\u5168\u8fc7\u7a0b\u3002\u4e00\u822c\u6765\u8bf4\uff0cEMI\u4e13\u6307\u5c04\u9891\u4fe1\u53f7(RF)\uff0c\u4f46\u5e72\u6270\u4fe1\u53f7\u53ef\u4ee5\u5728\u4efb\u4f55\u7684\u5de5\u4f5c\u9891\u7387\u533a\u57df\u5185\u4ea7\u751f\u3002<\/p>\n
\u7535\u78c1\u517c\u5bb9\u6d4b\u8bd5\u6027(Electromagnetic Compatibility\uff0c\u901a\u79f0EMC)\u5c31\u662f\u6307\u7535\u6c14\u8bbe\u5907\u548c\u7535\u5b50\u63a7\u5236\u7cfb\u7edf\u3001\u673a\u5668\u8bbe\u5907\u548c\u8bbe\u5907\u5728\u8bbe\u7f6e\u7684\u78c1\u611f\u5e94\u81ea\u7136\u73af\u5883\u4e2d\uff0c\u5728\u8981\u6c42\u7684\u5b89\u5168\u6027\u754c\u7ebf\u5185\u4ee5\u8bbe\u8ba1\u65b9\u6848\u7684\u7ea7\u522b\u6216\u7279\u6027\u8fd0\u4f5c\uff0c\u800c\u4e0d\u5bb9\u6613\u56e0\u4e3a\u5e72\u6270\u4fe1\u53f7\u9020\u6210\u6545\u969c\u6216\u4e0d\u80fd\u63a5\u7eb3\u5230\u7279\u6027\u6076\u53d8\u7684\u5de5\u4f5c\u80fd\u529b\u3002\u8fd9\u513f\u6240\u6307\u7684\u78c1\u611f\u5e94\u81ea\u7136\u73af\u5883\u5c31\u662f\u6307\u5b58\u6709\u4e8e\u7ed9\u51fa\u573a\u5730\u7684\u5168\u90e8\u78c1\u611f\u5e94\u72b6\u51b5\u7684\u603b\u6570\u3002\u8fd9\u8868\u660e\u7535\u78c1\u517c\u5bb9\u6d4b\u8bd5\u6027\u4e00\u65b9\u9762\u6307\u7535\u5b50\u8bbe\u5907\u5e94\u6709\u6291\u6b62\u5916\u754c\u5e72\u6270\u4fe1\u53f7\u7684\u5de5\u4f5c\u80fd\u529b;\u53e6\u4e00\u65b9\u9762\uff0c\u8be5\u7535\u5b50\u8bbe\u5907\u6240\u9020\u6210\u7684\u5e72\u6270\u4fe1\u53f7\u5e94\u5c0f\u4e8e\u7a0b\u5ea6\uff0c\u4e0d\u53ef\u5371\u5bb3\u540c\u4e00\u78c1\u611f\u5e94\u81ea\u7136\u73af\u5883\u4e2d\u522b\u7684\u7535\u5b50\u4ea7\u54c1\u7684\u5e38\u89c4\u5de5\u4f5c\u4e2d\u3002<\/p>\n
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2.EMC\u5728PCB\u8bbe\u8ba1\u4e2d\u7684\u5fc5\u8981\u6027<\/p>\n
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(1)\u5fae\u6ce2\u5c04\u9891\u5f71\u54cd\u3002\u56e0\u4e3a\u76ee\u524d\u7684\u65e0\u7ebf\u8c03\u9891\u53d1\u5c04\u673a\u7684\u731b\u589e\uff0c\u5fae\u6ce2\u5c04\u9891\u5f71\u54cd\u7ed9\u7535\u5b50\u63a7\u5236\u7cfb\u7edf\u5bfc\u81f4\u4e86\u975e\u5e38\u5927\u7684\u5371\u5bb3\u3002\u8702\u7a9d\u7535\u8bdd\u3001\u624b\u6301\u5f0f\u65e0\u7ebf\u3001\u65e0\u7ebf\u9065\u63a7\u5668\u6a21\u5757\u3001\u5bfb\u547c\u673a\u548c\u522b\u7684\u76f8\u8fd1\u673a\u5668\u8bbe\u5907\u5982\u4eca\u5341\u5206\u5e7f\u6cdb\u3002\u5bfc\u81f4\u6709\u5371\u5bb3\u7684\u5f71\u54cd\u5e76\u4e0d\u4e00\u5b9a\u975e\u5e38\u5927\u7684\u4ea7\u751f\u8f93\u51fa\u529f\u7387\u3002\u5178\u578b\u6027\u7684\u5e38\u89c1\u6545\u969c\u53d1\u751f\u5728\u5fae\u6ce2\u5c04\u9891\u78c1\u573a\u5f3a\u5ea6\u4e3a1\uff5e10V\/m\u7684\u8303\u7574\u5185\u3002\u5728\u6b27\u6d32\u5730\u533a\u3001\u5317\u7f8e\u5730\u533a\u548c\u8bb8\u591a\u4e9a\u6d32\u56fd\u5bb6\uff0c\u9632\u6b62\u5fae\u6ce2\u5c04\u9891\u5f71\u54cd\u6bc1\u574f\u522b\u7684\u673a\u5668\u8bbe\u5907\u65e9\u5df2\u53d8\u6210\u5bf9\u5168\u90e8\u5546\u54c1\u5728\u6cd5\u5f8b\u6cd5\u89c4\u4e0a\u7684\u5f3a\u5236\u8981\u6c42\u3002<\/p>\n
(2)\u9759\u7535\u653e\u7535(ESD)\u3002\u5f53\u4ee3\u96c6\u6210ic\u52a0\u5de5\u5de5\u827a\u90fd\u6709\u975e\u5e38\u5927\u7684\u53d1\u5c55\uff0c\u5728\u8f83\u5c0f\u7684\u591a\u5c11\u89c4\u683c(0.18um)\u4e0a\u5143\u5668\u4ef6\u65e9\u5df2\u8d8a\u6765\u8d8a\u5341\u5206\u805a\u96c6\u3002\u8fd9\u79cd\u5feb\u901f\u7684\u3001\u6570\u4ee5\u767e\u8ba1\u7684\u6676\u4f53\u4e09\u6781\u7ba1\u5fae\u63a7\u5236\u5668\u7684\u654f\u611f\u5ea6\u5f88\u9ad8\uff0c\u975e\u5e38\u5bb9\u6613\u906d\u53d7\u5916\u90e8\u9759\u7535\u653e\u7535\u5371\u5bb3\u800c\u6bc1\u574f\u3002\u5145\u653e\u7535\u53ef\u4ee5\u662f\u7acb\u5373\u6216\u8f90\u5c04\u6e90\u7684\u65b9\u6cd5\u9020\u6210\u3002\u76f4\u63a5\u63a5\u89e6\u5145\u653e\u7535\u4e00\u822c\u9020\u6210\u673a\u5668\u8bbe\u5907\u6c38\u4e45\u7684\u6bc1\u574f\u3002\u8f90\u5c04\u6e90\u9020\u6210\u7684\u9759\u7535\u653e\u7535\u5f88\u6709\u53ef\u80fd\u9020\u6210\u673a\u5668\u8bbe\u5907\u6df7\u4e71\uff0c\u5de5\u4f5c\u4e2d\u5f02\u5e38\u3002<\/p>\n
(3)\u7535\u529b\u5de5\u7a0b\u5f71\u54cd\u3002\u4f34\u968f\u7740\u6108\u6765\u6108\u591a\u7684\u7535\u5b50\u4ea7\u54c1\u8fde\u63a5\u7535\u529b\u5de5\u7a0b\u4e3b\u5e72\u7f51\uff0c\u7cfb\u7edf\u8f6f\u4ef6\u4f1a\u4ea7\u751f\u4e00\u4e9b\u6f5c\u5728\u5730\u5f71\u54cd\u3002\u8fd9\u79cd\u5f71\u54cd\u5305\u542b\u7535\u7f06\u7ebf\u5f71\u54cd\u3001\u7535\u8fc5\u901f\u78c1\u6cd5\u52d8\u63a2\u3001\u6d6a\u6d8c\u4fdd\u62a4\u3001\u5de5\u4f5c\u7535\u538b\u8f6c\u53d8\u3001\u7535\u95ea\u78c1\u6cd5\u52d8\u63a2\u548c\u7535\u7f06\u7ebf\u8c10\u6ce2\u7535\u6d41\u7b49\u3002\u9488\u5bf9\u9ad8\u9891\u5f00\u5173\u7535\u6e90\u800c\u8a00\uff0c\u8fd9\u79cd\u5f71\u54cd\u8d8a\u6765\u8d8a\u5f88\u660e\u663e\u3002<\/p>\n
(4)\u81ea\u517c\u5bb9\u6a21\u5f0f\u3002\u4e00\u4e2a\u7cfb\u7edf\u8f6f\u4ef6\u7684\u5c0f\u6570\u4e00\u90e8\u5206\u6216\u7535\u6e90\u7535\u8def\u5f88\u6709\u53ef\u80fd\u5f71\u54cd\u4eff\u771f\u6a21\u62df\u673a\u5668\u8bbe\u5907\uff0c\u5728\u7535\u7ebf\u4e2d\u95f4\u9020\u6210\u4e32\u7ed5(Crosstalk)\uff0c\u6216\u662f\u4e00\u4e2a\u7535\u52a8\u673a\u53ef\u4ee5\u9020\u6210\u6570\u5b57\u7535\u8def\u8bbe\u8ba1\u7684\u6df7\u4e71\u3002<\/p>\n
\u6b64\u5916\uff0c\u4e00\u4e2a\u5728\u4f4e\u9891\u7387\u53ef\u4ee5\u4e00\u5207\u6b63\u5e38\u4f5c\u4e1a\u7684\u7535\u5b50\u8bbe\u5907\uff0c\u5f53\u5de5\u4f5c\u9891\u7387\u4e0a\u5347\u7684\u65f6\u5019\u4f1a\u9047\u89c1\u4e00\u4e9b\u4f4e\u9891\u7387\u6240\u6c92\u6709\u7684\u95ee\u9898\u3002\u4f8b\u5982\u53cd\u5c04\u9762\u3001\u4e32\u7ed5\u3001\u5730\u5f39\u3001\u9ad8\u9891\u7387\u566a\u97f3\u7b49\u3002<\/p>\n
\u4e00\u4e2a\u4e0d\u7b26EMC\u6807\u51c6\u7684\u7535\u5b50\u8bbe\u5907\u5e76\u4e0d\u662f\u8fbe\u6807\u7684\u7535\u5b50\u4ea7\u54c1\u8bbe\u8ba1\u3002\u4ea7\u54c1\u8bbe\u8ba1\u9664\u5f00\u8fbe\u5230\u9500\u552e\u5e02\u573a\u591a\u529f\u80fd\u6027\u9700\u6c42\u5916\uff0c\u8fd8\u52a1\u5fc5\u4f7f\u7528\u6070\u5f53\u7684\u8bbe\u8ba1\u65b9\u6848\u6280\u672f\u6027\u6765\u9632\u6b62\u6216\u6d88\u9664EMI\u7684\u5371\u5bb3\u3002<\/p>\n
3.PCB\u8bbe\u8ba1\u7684EMC\u8003\u8651\u5230<\/p>\n
\u9488\u5bf9\u5feb\u901fPCB(Printed Circuit Board\uff0cpcb\u7535\u8def\u677f)\u8bbe\u8ba1\u65b9\u6848\u4e2dEMI\u95ee\u9898\uff0c\u901a\u5e38\u6709\u8fd9\u4e24\u79cd\u65b9\u5f0f\u5904\u7406\uff1a\u4e00\u79cd\u662f\u6291\u6b62EMI\u7684\u5371\u5bb3\uff0c\u53e6\u4e00\u79cd\u662f\u5c4f\u853d\u6389EMI\u7684\u5371\u5bb3\u3002\u8fd92\u79cd\u65b9\u6cd5\u6709\u5f88\u591a\u4e0d\u4e00\u6837\u7684\u8868\u8fbe\u5f62\u5f0f\uff0c\u5c24\u5176\u662f\u62e6\u622a\u7cfb\u7edf\u8f6f\u4ef6\u4fc3\u4f7fEMI\u5371\u5bb3\u7535\u5b50\u8bbe\u5907\u7684\u6982\u7387\u964d\u81f3\u4e86\u6700\u5c11\u3002<\/p>\n
\u5fae\u6ce2\u5c04\u9891(RF)\u52a8\u80fd\u662f\u7531pcb\u7535\u8def\u677f(PCB)\u5185\u7684\u5f00\u5173\u7535\u6d41\u9020\u6210\u7684\uff0c\u8fd9\u79cd\u7535\u6d41\u91cf\u662f\u6570\u636e\u5143\u5668\u4ef6\u9020\u6210\u7684\u526f\u4ea7\u7269\u3002\u5728\u4e00\u4e2a\u5f00\u5173\u7535\u6e90\u7ba1\u7406\u7cfb\u7edf\u8f6f\u4ef6\u4e2d\u6bcf\u4e00\u4e2a\u903b\u8f91\u6027\u60c5\u51b5\u7684\u66f4\u6539\u90fd\u662f\u4f1a\u9020\u6210\u4e00\u4e2a\u4e00\u77ac\u95f4\u7684\u6d6a\u6d8c\u4fdd\u62a4\uff0c\u5927\u90e8\u5206\u72b6\u51b5\u4e0b\uff0c\u8fd9\u79cd\u903b\u8f91\u6027\u60c5\u51b5\u7684\u66f4\u6539\u4e0d\u5bb9\u6613\u9020\u6210\u5145\u8db3\u7684\u63a5\u5730\u88c5\u7f6e\u566a\u97f3\u5de5\u4f5c\u7535\u538b\u5bfc\u81f4\u4e00\u5207\u591a\u529f\u80fd\u6027\u7684\u5371\u5bb3\uff0c\u4f46\u5f53\u4e00\u4e2a\u5143\u5668\u4ef6\u7684\u8fb9\u7f18\u901f\u5ea6(\u589e\u76ca\u503c\u548c\u4e0a\u5347\u5e45\u5ea6)\u8d8a\u6765\u8d8a\u975e\u5e38\u5feb\u7684\u8fc7\u7a0b\u4e2d\u4fbf\u4f1a\u9020\u6210\u5145\u8db3\u7684\u5fae\u6ce2\u5c04\u9891\u52a8\u80fd\u5371\u5bb3\u522b\u7684\u7684\u7535\u5b50\u5143\u5668\u4ef6\u7684\u5e38\u89c4\u5de5\u4f5c\u4e2d\u3002<\/p>\n
3.1 PCB\u4e0a\u5e72\u6270\u4fe1\u53f7\u9020\u6210\u7684\u7f18\u6545<\/p>\n
\u4e0d\u6070\u5f53\u7684\u4f5c\u6cd5\u901a\u5e38\u4f1a\u5728PCB\u4e0a\u9020\u6210\u8d85\u8fc7\u6807\u51c6\u7684EMI\u3002\u878d\u5408\u9ad8\u9891\u7387\u6570\u636e\u4fe1\u53f7\u7684\u7279\u70b9\uff0c\u4e0ePCB\u7ea7\u7684EMI\u76f8\u5173\u7684\u5305\u62ec\u4e0b\u9762\u4e00\u4e9b\u5c42\u9762\uff1a<\/p>\n
(1)\u5c01\u88c5\u5f62\u5f0f\u5bf9\u7b56\u5e94\u7528\u4e0d\u9002\u5ea6\u3002\u5982\u5e94\u5f53\u7528\u91d1\u5c5e\u5c01\u88c5\u7684\u5143\u5668\u4ef6\u5374\u7528\u5851\u80f6\u5c01\u88c5\u5f62\u5f0f\u3002<\/p>\n
(2)PCB\u8bbe\u8ba1\u4e0d\u4f73\uff0c\u8fdb\u884c\u54c1\u8d28\u4e0d\u9ad8\uff0c\u7535\u7f06\u7ebf\u4e0e\u8fde\u63a5\u5934\u7684\u63a5\u5730\u88c5\u7f6e\u6b20\u4f73\u3002<\/p>\n
(3)\u4e0d\u9002\u5ea6\u4e43\u81f3\u4e0d\u6b63\u786e\u7684PCB\u5408\u7406\u5e03\u5c40\u3002<\/p>\n
\u5305\u542b\u949f\u8868\u548c\u65f6\u95f4\u6570\u636e\u4fe1\u53f7\u5e03\u7ebf\u8bbe\u7f6e\u4e0d\u5408\u7406;PCB\u7684\u5206\u5c42\u6b21\u6392\u5e8f\u53ca\u6570\u636e\u4fe1\u53f7\u8d70\u7ebf\u5c42\u8bbe\u5b9a\u4e0d\u5408\u7406;\u9488\u5bf9\u542b\u6709\u9ad8\u9891\u7387RF\u52a8\u80fd\u904d\u5e03\u6210\u4efd\u7684\u9009\u7528\u4e0d\u5408\u7406;\u5171\u6a21\u4e0e\u5dee\u6a21\u8fc7\u6ee4\u8003\u8651\u5230\u4e0d\u591f;\u63a5\u5730\u88c5\u7f6e\u73af\u57ce\u8def\u9020\u6210RF\u548c\u5730\u5f39;\u65c1\u901a\u548c\u53bb\u8026\u4e0d\u591f\u8fd9\u4e9b\u3002<\/p>\n
\u8981\u5b8c\u6210\u7cfb\u7edf\u7ea7\u7684EMI\u6291\u6b62\uff0c\u901a\u5e38\u5fc5\u987b\u4e00\u4e9b\u9002\u5ea6\u7684\u65b9\u5f0f\uff1a\u8fd9\u5305\u62ec\u5c4f\u853d\u6389\u3001\u57ab\u7247\u3001\u63a5\u5730\u88c5\u7f6e\u3001\u8fc7\u6ee4\u3001\u53bb\u8026\u3001\u9002\u5ea6\u8d70\u7ebf\u3001\u7535\u6e90\u7535\u8def\u7279\u6027\u963b\u6297\u64cd\u7eb5\u7b49\u3002<\/p>\n
3.2 \u7535\u78c1\u517c\u5bb9\u6d4b\u8bd5\u7684\u5c4f\u853d\u6389\u8bbe\u8ba1\u65b9\u6848<\/p>\n
\u73b0\u5982\u4eca\u7684\u7535\u5b50\u5668\u4ef6\u5de5\u4e1a\u754c\u5df2\u8d8a\u6765\u8d8a\u6ce8\u610f\u5230SE\/EMC(Shielding Effectiveness\uff0cSE\uff0c\u9694\u79bb\u75c5\u623f\u5c4f\u853d\u6389\u7ecf\u6d4e\u6548\u76ca)\u7684\u8981\u6c42\uff0c\u800c\u73b0\u5728\u5927\u91cf\u7535\u5b50\u5668\u4ef6\u90e8\u4ef6\u7684\u5e94\u7528\uff0c\u7535\u78c1\u517c\u5bb9\u6d4b\u8bd5\u6027\u4ea6\u66f4\u906d\u53d7\u5173\u5fc3\u3002\u78c1\u5c4f\u853d\u4fbf\u662f\u4ee5\u91d1\u5c5e\u6750\u6599\u9632\u62a4\u7684\u57fa\u672c\u539f\u7406\u6765\u64cd\u7eb5\u5e72\u6270\u4fe1\u53f7\u7531\u4e00\u4e2a\u5730\u533a\u5411\u53e6\u4e00\u4e2a\u5730\u533a\u78c1\u611f\u5e94\u548c\u8f90\u5c04\u6e90\u6563\u64ad\u7535\u65b9\u5f0f\u3002\u901a\u5e38\u5305\u542b\u4e8c\u79cd\uff1a\u4e00\u79cd\u662f\u9759\u7535\u5c4f\u853d\uff0c\u9002\u7528\u4e8e\u907f\u514d\u7535\u573a\u548c\u5300\u901f\u8fd0\u52a8\u7535\u78c1\u573a\u7684\u5371\u5bb3;\u53e6\u4e00\u79cd\u662f\u78c1\u5c4f\u853d\uff0c\u9002\u7528\u4e8e\u907f\u514d\u4ea4\u53d8\u7535\u573a\u3001\u4ea4\u66ff\u53d8\u5316\u7535\u78c1\u573a\u53ca\u5176\u4ea4\u66ff\u53d8\u5316\u78c1\u573a\u7684\u5371\u5bb3\u3002<\/p>\n
EMI\u5c4f\u853d\u6389\u53ef\u4f7f\u5546\u54c1\u7b80\u6613\u4e14\u5408\u7406\u7684\u5408\u4e4eEMC\u7684\u6807\u51c6\uff0c\u5f53\u5de5\u4f5c\u9891\u7387\u572810MHz\u4e0b\u5217\u65f6\u65e0\u7ebf\u7535\u6ce2\u5927\u591a\u6570\u4e3a\u4f20\u8f93\u7684\u65b9\u5f0f\uff0c\u800c\u8f83\u9ad8\u9891\u7684\u65e0\u7ebf\u7535\u6ce2\u5219\u591a\u89c1\u8f90\u5c04\u6e90\u7684\u65b9\u5f0f\u3002\u8bbe\u8ba1\u65b9\u6848\u65f6\u53ef\u4ee5\u9009\u7528\u5355\u9762\u5b9e\u82af\u9632\u8f90\u5c04\u6750\u6599\u3001\u53cc\u5c42\u5b9e\u82af\u9632\u8f90\u5c04\u6750\u6599\u3001\u53cc\u5411\u5c4f\u853d\u6389\u6216\u662f\u53cc\u5411\u4ee5\u4e0a\u5c4f\u853d\u6389\u7b49\u65b0\u6750\u6599\u5f00\u5c55EMI\u5c4f\u853d\u6389\u3002\u9488\u5bf9\u4f4e\u9891\u7387\u7684\u5e72\u6270\u4fe1\u53f7\u5fc5\u987b\u7528\u539a\u7684\u5c4f\u5f0a\u5c42\uff0c\u6700\u597d\u7684\u662f\u5e94\u7528\u5bfc\u78c1\u7387\u9ad8\u7684\u539f\u6599\u6216\u6c38\u78c1\u6750\u6599\uff0c\u5982\u954d\u5408\u91d1\u94dc\u7b49\uff0c\u4ee5\u83b7\u53d6\u8f83\u5927\u7684\u78c1\u611f\u5e94\u6d88\u5316\u5438\u6536\u8017\u635f\uff0c\u800c\u9488\u5bf9\u9ad8\u9891\u7387\u65e0\u7ebf\u7535\u6ce2\u53ef\u5e94\u7528\u91d1\u5c5e\u6750\u6599\u9632\u8f90\u5c04\u6750\u6599\u3002<\/p>\n
\u5728\u5177\u4f53\u7684EMI\u5c4f\u853d\u6389\u4e2d\uff0c\u78c1\u5c4f\u853d\u6548\u7387\u975e\u5e38\u5927\u6c34\u5e73\u4e0a\u5728\u4e8e\u4e3b\u673a\u7bb1\u7684\u7269\u7406\u5b66\u6784\u9020\uff0c\u5373\u5bfc\u7535\u6027\u7684\u6301\u7eed\u6027\u3002\u4e3b\u673a\u7bb1\u4e0a\u7684\u63a5\u7f1d\u5904\u53ca\u5176\u5f20\u53e3\u5168\u662f\u65e0\u7ebf\u7535\u6ce2\u7684\u6cc4\u9732\u6e90\u3002\u5e76\u4e14\uff0c\u8d8a\u8fc7\u4e3b\u673a\u7bb1\u7684\u7535\u7f06\u7ebf\u4e5f\u662f\u5f62\u6210\u5c4f\u853d\u6389\u6548\u7387\u964d\u4f4e\u5230\u5173\u952e\u7f18\u6545\u3002\u4e3b\u673a\u7bb1\u4e0a\u5f20\u53e3\u7684\u7535\u78c1\u80fd\u6cc4\u9732\u4e0e\u5f20\u53e3\u7684\u6837\u5b50\u3001\u653e\u5c04\u6027\u7269\u8d28\u7684\u7279\u70b9\u548c\u653e\u5c04\u6027\u7269\u8d28\u5230\u63a5\u53e3\u5904\u7684\u95f4\u8ddd\u6709\u5173\u3002\u6839\u636e\u9002\u5ea6\u5730\u8bbe\u8ba1\u65b9\u6848\u5f20\u53e3\u89c4\u683c\u548c\u653e\u5c04\u6027\u7269\u8d28\u5230\u5f20\u53e3\u7684\u95f4\u8ddd\u53ef\u4ee5\u6539\u8fdb\u5c4f\u853d\u6389\u6548\u7387\u3002\u901a\u5e38\u5904\u7406\u4e3b\u673a\u7bb1\u95f4\u9699\u78c1\u611f\u5e94\u6cc4\u9732\u7684\u65b9\u6cd5\u662f\u5728\u95f4\u9699\u5904\u7528\u78c1\u611f\u5e94\u5bc6\u5c01\u6027\u57ab\u7247\u3002\u78c1\u611f\u5e94\u5bc6\u5c01\u6027\u57ab\u7247\u662f\u4e00\u79cd\u5bfc\u7535\u6027\u7684\u5f39\u529b\u539f\u6750\u6599\uff0c\u5b83\u53ef\u4ee5\u7ef4\u6301\u95f4\u9699\u5904\u7684\u5bfc\u7535\u6027\u6301\u7eed\u6027\u3002\u666e\u904d\u7684\u78c1\u611f\u5e94\u5bc6\u5c01\u6027\u57ab\u7247\u6709\uff1a\u5bfc\u7535\u80f6(\u5728\u5851\u80f6\u4e2d\u63ba\u52a0\u5bfc\u7535\u6027\u9897\u7c92\u7269\uff0c\u4f7f\u8fd9\u7c7b\u590d\u5408\u6750\u8d28\u65e2\u5177\u5907\u5851\u80f6\u7684\u5ef6\u5c55\u6027\uff0c\u53c8\u5177\u5907\u91d1\u5c5e\u6750\u6599\u7684\u5bfc\u7535\u7387\u3002)\u3001\u53cc\u5411\u5bfc\u7535\u80f6(\u5b83\u5e76\u4e0d\u662f\u5728\u5851\u80f6\u5168\u90e8\u4e00\u90e8\u5206\u63ba\u52a0\u5bfc\u7535\u6027\u9897\u7c92\u7269\uff0c\u90a3\u6837\u5f97\u5230\u7684\u76ca\u5904\u662f\u65e2\u6700\u5927\u9650\u5ea6\u5730\u7ef4\u6301\u4e86\u5851\u80f6\u7684\u5ef6\u5c55\u6027\uff0c\u53c8\u4fdd\u969c\u4e86\u5bfc\u7535\u7387)\u3001\u91d1\u5c5e\u6750\u6599\u7f16\u7ec7\u5957(\u4ee5\u5851\u80f6\u4e3a\u82af\u7684\u91d1\u5c5e\u6750\u6599\u7f16\u7ec7\u5957)\u3001\u87ba\u65cb\u94a2\u7ba1\u57ab\u7247(\u7528\u4e0d\u9508\u94a2\u677f\u3001\u94cd\u94dc\u6216\u7535\u9540\u9521\u94cd\u94dc\u53e0\u6210\u7684\u87ba\u65cb\u94a2\u7ba1)\u7b49\u3002\u6b64\u5916\uff0c\u5f53\u60f3\u81ea\u7136\u901a\u98ce\u91cf\u89c4\u5b9a\u975e\u5e38\u9ad8\u65f6\uff0c\u52a1\u5fc5\u5e94\u7528\u622a\u6b62\u5230\u5149\u6ce2\u5bfc\u5165\u7684\u81ea\u7136\u901a\u98ce\u677f\uff0c\u8fd9\u7c7b\u677f\u7b49\u540c\u4e8e\u4e00\u4e2a\u9ad8\u901a\u6ee4\u6ce2\u5668\uff0c\u5bf9\u9ad8\u8fc7\u67d0\u4e00\u51e0\u7387\u7684\u7535\u78c1\u8f90\u5c04\u4e0d\u635f\u8017\u6839\u636e\uff0c\u4f46\u9488\u5bf9\u5c0f\u4e8e\u8fd9\u4e00\u5de5\u4f5c\u9891\u7387\u7684\u65e0\u7ebf\u7535\u6ce2\u5219\u5f00\u5c55\u975e\u5e38\u5927\u7684\u635f\u8017\uff0c\u6709\u6548\u8fd0\u7528\u622a\u6b62\u5230\u5149\u6ce2\u5bfc\u5165\u7684\u7684\u8fd9\u7c7b\u7279\u70b9\u53ef\u4ee5\u4e0d\u9519\u7684\u5c4f\u853d\u6389EMI\u7684\u5f71\u54cd\u3002<\/p>\n
3.3 \u7535\u78c1\u517c\u5bb9\u6d4b\u8bd5\u7684\u6709\u6548PCB\u8bbe\u8ba1<\/p>\n
\u4f34\u968f\u7740\u7cfb\u7edf\u5f00\u53d1\u591a\u5143\u6027\u548c\u5904\u7406\u901f\u5ea6\u7684\u89c4\u6a21\u6027\u63d0\u5347\uff0c\u7535\u5b50\u63a7\u5236\u7cfb\u7edf\u5ba4\u5185\u8bbe\u8ba1\u5e08\u4eec\u5df2\u7ecf\u4ece\u4e1a100MHZ\u4ee5\u4e0a\u7684\u7535\u8def\u539f\u7406\uff0c\u7cfb\u7edf\u603b\u7ebf\u7684\u8f93\u51fa\u529f\u7387\u4e5f\u65e9\u5df2\u505a\u5230\u6216\u662f\u8d85\u51fa50MHZ\uff0c\u6709\u7684\u4e43\u81f3\u8d85\u51fa100MHZ\u3002\u5f53\u7cfb\u7edf\u8f6f\u4ef6\u5de5\u4f5c\u4e2d\u572850MHz\u65f6\uff0c\u5c06\u9020\u6210\u540c\u8f74\u7535\u7f06\u6548\u7528\u548c\u6570\u636e\u4fe1\u53f7\u7684\u4e00\u81f4\u6027\u95ee\u9898;\u800c\u5f53\u7cfb\u7edf\u8f6f\u4ef6\u949f\u8868\u505a\u5230120MHz\u65f6\uff0c\u9664\u975e\u662f\u5e94\u7528\u5feb\u901f\u7535\u8def\u539f\u7406\u4e13\u4e1a\u77e5\u8bc6\uff0c\u4e0d\u7136\u6839\u636e\u4f20\u7edf\u5f0f\u65b9\u5f0f\u8bbe\u8ba1\u65b9\u6848\u7684PCB\u5c06\u4e0d\u80fd\u5de5\u4f5c\u4e2d\u3002\u56e0\u800c\uff0c\u5feb\u901f\u7535\u8def\u539f\u7406\u6280\u672f\u6027\u73b0\u5df2\u53d8\u6210\u7535\u5b50\u63a7\u5236\u7cfb\u7edf\u5ba4\u5185\u8bbe\u8ba1\u5e08\u52a1\u5fc5\u91c7\u7528\u7684\u8bbe\u8ba1\u65b9\u6848\u65b9\u5f0f\u3002\u4ec5\u6709\u6839\u636e\u5e94\u7528\u5feb\u901f\u7535\u6e90\u7535\u8def\u5ba4\u5185\u8bbe\u8ba1\u5e08\u7684\u8bbe\u8ba1\u65b9\u6848\u6280\u672f\u6027\uff0c\u624d\u53ef\u4ee5\u5b8c\u6210\u8bbe\u8ba1\u8fc7\u7a0b\u7684\u53ef\u64cd\u63a7\u6027\u3002<\/p>\n
\u901a\u5e38\u89c9\u5f97\u5047\u5982\u6570\u5b57\u903b\u8f91\u7535\u8def\u7684\u6b21\u6570\u505a\u5230\u6216\u662f\u8d85\u51fa45MHZ~50MHZ\uff0c\u5e76\u4e14\u5de5\u4f5c\u4e2d\u5728\u8fd9\u4e2a\u5de5\u4f5c\u9891\u7387\u4ee5\u4e0a\u7684\u7535\u6e90\u7535\u8def\u65e9\u5df2\u5360\u5230\u4e86\u5168\u90e8\u7535\u5b50\u63a7\u5236\u7cfb\u7edf\u4e00\u5b9a\u7684\u5206\u91cf(\u4f8b\u59821\/3)\uff0c\u5c31\u79f0\u4e4b\u4e3a\u5feb\u901f\u7535\u6e90\u7535\u8def\u3002\u4e8b\u5b9e\u4e0a\uff0c\u6570\u636e\u4fe1\u53f7\u8fb9\u7f18\u7684\u8c10\u6ce2\u7535\u6d41\u5de5\u4f5c\u9891\u7387\u6bd4\u6570\u636e\u4fe1\u53f7\u81ea\u8eab\u7684\u5de5\u4f5c\u9891\u7387\u9ad8\uff0c\u662f\u6570\u636e\u4fe1\u53f7\u8fc5\u901f\u6539\u53d8\u7684\u4e0a\u5347\u6cbf\u4e0e\u964d\u4f4e\u6cbf(\u6216\u79f0\u6570\u636e\u4fe1\u53f7\u7684\u632f\u8361)\u5f15\u8d77\u4e86\u6570\u636e\u4fe1\u53f7\u4f20\u9001\u7684\u975e\u9884\u671f\u6210\u679c\u3002\u8981\u5b8c\u6210\u5408\u4e4eEMC\u89c4\u8303\u7684\u9ad8\u9891\u7387PCB\u8bbe\u8ba1\uff0c\u901a\u5e38\u8981\u9009\u7528\u4e0b\u5217\u6280\u672f\u6027\uff1a\u5305\u542b\u65c1\u901a\u4e0e\u53bb\u8026\u3001\u63a5\u5730\u88c5\u7f6e\u64cd\u7eb5\u3001\u540c\u8f74\u7535\u7f06\u64cd\u7eb5\u3001\u5e03\u7ebf\u7ec8\u7aef\u8bbe\u5907\u914d\u5bf9\u7b49\u3002<\/p>\n
(1)\u65c1\u901a\u4e0e\u53bb\u8026<\/p>\n
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