\n\tBNC\u7684\u79cd\u7c7b<\/p>\n
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\n\t\u5f88\u591a\u5c04\u9891\u8fde\u63a5\u5668\u7ecf\u9500\u5546\u90fd\u4f9d\u636ePCB<\/u>\u4e0a\u7684\u8d34\u7247\u65b9\u6cd5\u7ed9\u4e88\u4e0d\u4e00\u6837\u79cd\u7c7b\u7684BNC.\u6839\u636e\u673a\u68b0\u8bbe\u5907\u9886\u57df\u7684\u8003\u8651\u5230\uff0c\u8fd9\u79cd\u5c04\u9891\u8fde\u63a5\u5668\u53ef\u4ee5\u9009\u7528\u7ad6\u76f4\u8d34\u7247\u3001\u659c\u89d2\u8d34\u7247\u6216\u8fb9\u6cbf\u8d34\u7247\u3002\u5728\u7535\u6c14\u8bbe\u5907\u5c42\u9762\uff0c\u6570\u636e\u4fe1\u53f7\u7ba1\u811a\u8981\u4e0d\u8868\u5c42\u8d34\u7247\u5728\u7ebf\u8def\u677f<\/u>\u9ad8\u5c42\u7684\u8054\u63a5\u710a\u5c42\u4e0a\uff0c\u8981\u4e0d\u7535\u710a\u710a\u63a5<\/u>\u5728\u9540\u8986\u57cb\u5b54<\/u>\u5185\uff0c\u6570\u636e\u4fe1\u53f7\u8d70\u7ebf<\/u>\u5219\u5750\u843d\u4e8e\u7ebf\u8def\u677f\u7684\u53e6\u4e00\u9762\u3002<\/p>\n
\n\tBNC\u7684\u68c0\u6d4b<\/u><\/p>\n
\n\tBNC\u662f\u4e00\u79cd\u540c\u8f74\u8fde\u63a5\u5668\uff0c\u4e13\u4e3a\u9002\u7528\u8fbe\u52303Gbps\u7684\u5927\u6587\u4ef6\u4f20\u8f93\u800c\u8bbe\u8ba1\u65b9\u6848\uff0c\u5176\u7279\u6027\u5173\u952e\u5728\u4e8eBNC\u5185\u7684\u540c\u8f74\u7ebf\u6784\u9020\uff0c\u4eceBNC\u5c04\u9891\u8fde\u63a5\u5668\u81f3PCB\u7684\u53d8\u6362\u5c06\u4e25\u91cd\u5f71\u54cdBNC\u7684\u7279\u6027\u3002\u8bbe\u8ba1\u65b9\u6848\u4f18\u826f\u7684BNC\u56e2\u5757\u5bf9\u7ef4\u6301BNC\u7f51\u7edc\u5e26\u5bbd\u4ee5\u53ca\u7279\u70b9\u7279\u6027\u963b\u6297\u4e0d\u53ef\u6216\u7f3a\u3002<\/p>\n
\n\t\u65f6\u57df\u53cd\u5c04\u8ba1\uff08TDR\uff09\u662f\u8fc5\u901f\u68c0\u6d4b\u4fe1\u53f7\u4e0d\u597d\u7ba1\u811a\u6216\u56e2\u5757\u7684BNC\u540c\u8f74\u7ebf\u6784\u9020\u5167\u90e8\u7279\u6027\u7684\u4e00\u4e2a\u6709\u6548\u7684\u4e13\u7528\u5de5\u5177\u3002\u5f00\u5c55\u8be5\u68c0\u6d4b\u7684\u901a\u4fd7\u65b9\u5f0f\u662f\u7528\u5e73\u6241\u94dc\u7247\u4f7fBNC\u7684\u6570\u636e\u4fe1\u53f7\u7ba1\u811a\u4e0e\u5176\u8bf4\u5c4f\u853d\u6389\u7ba1\u811a\u77ed\u8def\u6545\u969c\uff0c\u968f\u540e\u5411BNC\u5185\u53d1\u9001TDR\u9636\u8dc3\u5355\u8109\u51b2\u3002\u6839\u636e\u7cbe\u786e\u6d4b\u91cf<\/u>\u4ece\u53d1\u9001\u7684TDR\u9636\u8dc3\u5355\u8109\u51b2\u53cd\u5c04\u9762\u56de\u7684\u6570\u636e\u4fe1\u53f7\uff0c\u4eea\u8868\u76d8\u5c31\u53ef\u4ee5\u6d4b\u5230\u5728\u9636\u8dc3\u5355\u8109\u51b2\u4f20\u9001\u671f\u5185\u7684\u7279\u6027\u963b\u6297\u3002<\/p>\n
\n\t\u6b64\u659c\u89d2BNC\u5177\u5907\u5300\u79f0\u7684\u540c\u8f74\u7ebf\u6784\u9020\uff0c\u517675\u03a9\u7279\u70b9\u7279\u6027\u963b\u6297\u5728BNC\u5185\u51e0\u4e4e\u4fdd\u6301\u4e0d\u53d8\uff0c\u56e0\u800c\u5176\u56e2\u5757\u5e94\u5236\u5b9a\u6210\u5177\u5907\u4e0eBNC\u540c\u6837\u7684\u7279\u6027\u7279\u6027\u963b\u6297\u3002<\/p>\n
\n\t\u6b64\u659c\u89d2BNC\u7684\u540c\u8f74\u7ebf\u6784\u9020\u6709\u4e0d\u5300\u79f0\u7684\u9884\u5146\uff0c\u5728\u659c\u89d2\u5f2f\u5904\uff0c\u7279\u70b9\u7279\u6027\u963b\u6297\u4ece\u5141\u5dee\u768475\u03a9\u9010\u6e10\u964d\u4f4e\u3002\u5728\u8fd9\u91cc\u60c5\u5f62\u4e0b\uff0c\u5176\u56e2\u5757\u53ef\u4ee5\u8bbe\u8ba1\u65b9\u6848\u76f8\u5bf9\u6027\u7565\u9ad8\u7684\u7279\u6027\u7279\u6027\u963b\u6297\u4ee5\u586b\u8865BNC\u7684\u7f3a\u70b9\u3002<\/p>\n
\n\t\u6b64\u659c\u89d2BNC\u8868\u660e\u5176\u540c\u8f74\u7ebf\u6784\u9020\u6709\u591a\u79cd\u591a\u6837\u4e0d\u5300\u79f0\u7684\u9884\u5146\uff0c\u5728\u659c\u89d2\u5f2f\u5904\uff0c\u5b83\u65e0\u6cd5\u7ef4\u6301\u5176\u7279\u70b9\u7279\u6027\u963b\u6297\u3002\u5728\u8fd9\u91cc\u60c5\u5f62\u4e0b\uff0c\u96be\u4ee5\u4e3aBNC\u7ed9\u4e88\u5177\u5907\u4f18\u826f\u56de\u6ce2\u635f\u8017\u7279\u6027\u7684\u56e2\u5757\u3002<\/p>\n
\n\tBNC\u81f3\u7ebf\u8def\u677f\u8054\u63a5\u4e2d\u7684\u7591\u96be\u95ee\u9898<\/p>\n
\n\t\u5927\u90e8\u5206\u8868\u5c42\u8d34\u88c5BNC\u5c04\u9891\u8fde\u63a5\u5668\u5177\u5907\u76f4\u5f91\u5927\u6982\u4e3a30~40mil\u7684\u5927\u6570\u636e\u4fe1\u53f7\u7ba1\u811a\u3002\u4e3a\u5c06\u6570\u636e\u4fe1\u53f7\u7ba1\u811a\u6070\u5f53\u7535\u710a\u710a\u63a5\u5728PCB\u4e0a\uff0c\u5fc5\u987b\u5bbd\u7ea650mil\u7684\u8054\u63a5\u710a\u5c42\u3002\u4e3a\u6709\u5229\u4e8e\u8d70\u7ebf\uff0c\u901a\u5e38\u4f1a\u4f7f\u7528\u76848~15mil\u7684\u504f\u7ec6\u8868\u5c42\u5e03\u7ebf\uff0c\u5c06\u6570\u636e\u4fe1\u53f7\u4eceBNC\u5c04\u9891\u8fde\u63a5\u5668\u4f20\u8f93\u81f3\u5c11\u7ba1\u811a\u603b\u6570\u7684\u7535\u5b50\u5668\u4ef6<\/u>\u3002<\/p>\n
\n\t\u6ca1\u7ecf\u63d0\u5347\u7684\u8868\u9762\u8d34\u88c5BNC\u56e2\u5757\u7684\u9876\u89c6\u56fe\u548c\u5256\u9762\u56fe\u3002\u4e3a\u5b8c\u621075\uff1f\u7279\u70b9\u7279\u6027\u963b\u6297\uff0c\u4e13\u4e1a\u5236\u5b9a\u4e86\u4e00\u676112mil\u7684\u5fae\u5e26\u7ebf\uff0c\u6309\u7f6e\u5728GND\u5c42\u4e0a\u8fb915mil\u5904\u3002BNC\u7684\u8054\u63a5\u710a\u5c42\u7b49\u540c\u4e8e50mil\u7684\u5fae\u5e26\u7ebf\u3002\u56e0\u4e3a\u5728\u710a\u5c42\u4e0b\u8fb915mil\u4e0a\u6709GND\u5c42\uff0c\u56e0\u6b64\u710a\u5c42\u7684\u7279\u6027\u7279\u6027\u963b\u6297\u5927\u5927\u7684\u5c0f\u4e8e\u5e03\u7ebf\u7684\u7279\u6027\u7279\u6027\u963b\u6297\u3002\u710a\u5c42\u9020\u6210\u7279\u6027\u963b\u6297\u5927\u5e45\u5ea6\u964d\u4f4e\uff0c\u8fd9\u53ef\u80fd\u5371\u5bb3\u6570\u636e\u4fe1\u53f7\u54c1\u8d28\u5e76\u63d0\u5347\u5206\u5e03\u7535\u5bb9\uff0c\u8fdb\u800c\u51cf\u5c11BNC\u7f51\u7edc\u5e26\u5bbd\u3002<\/p>\n
\n\t\u5927\u90e8\u5206\u89c6\u9891\u76d1\u63a7\u8bbe\u5907\u4f1a\u5e94\u7528\u63d2\u5f0fBNC\uff0c\u56e0\u4e3a\u5b83\u662f\u66f4\u5f3a\u7684\u8d34\u7247\u53ef\u6269\u5c55\u6027\u3002BNC\u901a\u5e38\u4f1a\u8d34\u7247\u5728\u7ebf\u8def\u677f\u7684\u9ad8\u5c42\uff0c\u5176\u6570\u636e\u4fe1\u53f7\u7ba1\u811a\u7535\u710a\u710a\u63a5\u5728\u5f88\u5927\u7684\u9540\u8986\u57cb\u5b54\u5185\uff0c\u6570\u636e\u4fe1\u53f7\u8d70\u7ebf\u5219\u5750\u843d\u4e8e\u7ebf\u8def\u677f\u7684\u6700\u5e95\u5c42\u3002\u56fe8\u8868\u660e\u4e86\u6ca1\u7ecf\u63d0\u5347\u7684\u63d2\u5f0fBNC\u56e2\u5757\u7684\u9876\u89c6\u56fe\u548c\u5256\u9762\u56fe\u3002\u5167\u90e8\u63a5\u5730\u8d28\u6784\u9020\u548c\u7535\u6e90\u5c42\u4e0e\u9540\u8986\u57cb\u5b54\u9632\u62a4\uff0c\u4ee5\u9632\u6570\u636e\u4fe1\u53f7\u7ba1\u811a\u77ed\u8def\u6545\u969c\u3002\u9540\u8986\u57cb\u5b54\u7684\u5706\u67f1\u578b\u91d1\u5c5e\u6750\u6599\u67f1\u4f1a\u9020\u6210\u5c0f\u91cf\u7535\u611f\u5668<\/u>\u3002\u6bcf\u4e00\u4e2a\u5167\u90e8\u7535\u6e90\u5c42\u90fd\u662f\u4f1a\u4e3a\u9540\u8986\u57cb\u5b54\u7ed9\u4e88\u751f\u5b58\u7535\u5bb9\u5668<\/u>\uff0c\u5b9e\u9645\u5bb9\u79ef\u5728\u4e8e\u5167\u90e8\u7535\u6e90\u5c42\u4e0e\u91d1\u5c5e\u6750\u6599\u67f1\u95f4\u7684\u7a7a\u9699\u3002\u7a7a\u9699\u5c0f\u7684\u5927\u9540\u8986\u57cb\u5b54\u4f1a\u5f62\u6210\u8fc7\u9ad8\u7684\u7535\u5bb9\u5668\uff0c\u8fdb\u800c\u9020\u6210\u7279\u6027\u963b\u6297\u5927\u5e45\u5ea6\u964d\u4f4e\u3002\u5047\u5982\u6570\u636e\u4fe1\u53f7\u8d70\u7ebf\u5728BNC\u7684\u540c\u4e00\u5c42\uff0c\u9540\u8986\u57cb\u5b54\u4fbf\u4f1a\u53d8\u6210\u60ac\u67b6\u5728\u6570\u636e\u4fe1\u53f7\u8d70\u7f51\u4e0a\u7684\u6b8b\u7aef\uff0c\u5e76\u9020\u6210\u5f88\u5927\u7684\u5206\u5e03\u7535\u5bb9\uff0c\u4e43\u81f3\u9020\u6210\u66f4\u5927\u5e45\u7684\u7279\u6027\u963b\u6297\u964d\u4f4e\u3002<\/p>\n
\n\t\u6ca1\u7ecf\u63d0\u5347\u7684\u6570\u636e\u4fe1\u53f7\u53d1\u9001\u4ea7\u751f\u7684\u5371\u5bb3<\/p>\n
\n\t\u7f8e\u56fd\u7247\u4e0e\u7535\u89c6\u673a\u6280\u672f\u5de5\u7a0b\u5e08\u7814\u7a76\u4f1a\uff08SMPte\uff09\u516c\u5e03\u4e86\u4e2a\u89c4\u8303\uff0c\u7528\u4ee5\u7ba1\u7406\u65b9\u6cd5\u6839\u636e\u540c\u8f74\u7ebf\u7684\u6570\u636e\u5927\u6587\u4ef6\u4f20\u8f93\u3002\u8fd9\u79cdSMPTE\u89c4\u8303\u5305\u542b\u952e\u5165\u548c\u5bfc\u51fa\u56de\u6ce2\u635f\u8017\u89c4\u5b9a\uff0c\u5173\u952e\u8981\u6c42\u4e86\u952e\u5165\u6216\u5bfc\u51fa\u7aef\u53e3\u53f7\u4e0e75\u03a9\u4e92\u8054\u7f51\u7684\u5339\u914d\u5ea6\u3002\u6b20\u4f73BNC\u6216\u6ca1\u7ecf\u63d0\u5347\u7684BNC\u56e2\u5757\u4f1a\u9020\u6210\u7279\u6027\u963b\u6297\u5931\u914d\uff0c\u4f7f\u5176\u65e0\u6cd5\u6839\u636eSMPTE\u56de\u6ce2\u635f\u8017\u9650\u5b9a\u3002<\/p>\n
\n\t\u6bd4\u8f83\u4e25\u91cd\u7684\u7279\u6027\u963b\u6297\u5931\u914d\u4f1a\u9020\u6210\u53cd\u5c04\u9762\uff0c\u8fdb\u800c\u5bf9\u6570\u636e\u54c1\u8d28\u5f62\u6210\u4e0d\u826f\u5f71\u54cd\uff0c\u800c\u4e14\u8fd8\u4f1a\u7ee7\u7eed\u53d8\u5c0f\u6570\u636e\u4fe1\u606f\u773c\u56fe\u7684\u7535\u6d41\u6216\u65f6\u949f\u9891\u7387\u88d5\u5ea6\u3002\u6570\u636e\u4fe1\u53f7\u53d1\u9001\u4e2d\u7684\u8fc7\u9ad8\u5206\u5e03\u7535\u5bb9\u4f1a\u5f71\u54cd\u6570\u636e\u4fe1\u53f7\u9014\u5f84\u7684\u7f51\u7edc\u5e26\u5bbd\uff0c\u5e76\u9020\u6210\u6807\u8bb0\u95f4\u7684\u5f71\u54cd\u548c\u98a4\u52a8\u3002<\/p>\n
\n\tBNC\u7684\u6311\u9009<\/p>\n
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\n\t\u5168\u900f\u660e\u7684BNC\u56e2\u5757\u2014\u2014\u8868\u5c42\u8d34\u88c5BNC<\/p>\n
\n\t\u5168\u900f\u660e\u7684\u56e2\u5757\uff08transparent footprint\uff09\u5c31\u662f\u6307\u5176\u5177\u5907\u4e0eBNC\u5c04\u9891\u8fde\u63a5\u5668\u540c\u6837\u7684\u7279\u6027\u7279\u6027\u963b\u6297\uff0c\u4e14\u4e0d\u5bb9\u6613\u663e\u7740\u63d0\u5347\u5371\u5bb3BNC\u7f51\u7edc\u5e26\u5bbd\u7684\u7535\u6e90\u7535\u8def\u751f\u5b58\u503c\u3002\u4e0b\u8fb9\u8ba8\u8bba\u51e0\u7c7b\u65b9\u5f0f\uff0c\u5728\u5176\u4e2d\u4e00\u79cd\u5408\u7406\u65b9\u5f0f\u662f\u6e05\u67e5\u6570\u636e\u4fe1\u53f7\u9014\u5f84\u3001\u627e\u5bfb\u504f\u79fb\u603b\u4f53\u76ee\u6807\u7279\u6027\u963b\u6297\u7684\u7ebf\u8def\u677f\u51e0\u4f55\u56fe\uff0c\u5e76\u660e\u786e\u63d0\u51fa\u5c06\u7279\u6027\u963b\u6297\u4fee\u590d\u81f3\u76ee\u6807\u7684\u65b9\u5f0f\u3002<\/p>\n
\n\t\u8868\u5c42\u8d34\u88c5BNC\uff0c\u5219\u5927\u7684\u8054\u63a5\u710a\u5c42\u5c06\u9020\u6210\u7279\u6027\u963b\u6297\u5927\u5e45\u5ea6\u964d\u4f4e\u3002\u63d0\u5347\u5176\u7279\u6027\u963b\u6297\u5fc5\u987b\u5e94\u7528\u6bd4\u8f83\u5927\u7684\u7535\u89e3\u4ecb\u8d28\u95f4\u8ddd\uff08H\u300b\u300b15mil\uff09\uff0c\u4f46\u8fd9\u5e76\u5e76\u4e0d\u662f\u53ef\u9009\u8ba1\u5212\u65b9\u6848\u3002\u63d0\u5347\u710a\u5c42\u7279\u6027\u963b\u6297\u7684\u65b9\u5f0f\u4e4b\u4e00\u662f\u6e05\u9664\u710a\u5c42\u4e0b\u8fb9\u7684\u4e00\u4e2a\u6216\u597d\u51e0\u4e2a\u5c42\uff0c\u4ee5\u6e05\u9664\u8fc7\u9ad8\u7684\u5206\u5e03\u7535\u5bb9\u3002\u5f20\u53e3\u89c4\u683c\u901a\u5e38\u8bbe\u8ba1\u4e3a\u80fd\u7ed9\u4e88\u6070\u597d\u5145\u8db3\u7684\u8fb9\u6cbf\u7535\u5bb9\u5668\uff0c\u4ee5\u5c06\u8054\u63a5\u710a\u5c42\u7684\u7279\u6027\u963b\u6297\u4fee\u590d\u81f3\u5176\u76ee\u6807\u3002\u5728\u710a\u5c42\u4e0b\u8fb9\u6e05\u9664\u5c42\u7684\u6280\u672f\u6027\u3002\u56e2\u5757\u5728\u4e8e\u7b2c\u4e00\u4e2aGND\u5c42\u7684\u90e8\u4f4d\uff0c\u53ca\u5176\u7ebf\u8def\u677f\u4e2d\u7535\u6e90\u5c42\u7684\u5177\u4f53\u4f4d\u7f6e\u548c\u603b\u6570\u3002<\/p>\n
\n\t\u5728\u8fd9\u91cc\u5b9e\u4f8b\u4e2d\uff0c\u6e05\u9664\u710a\u5c42\u4e0b\u8fb9\u5168\u90e8\u7684\u5c42\u3002\u6b64\u6d41\u7a0b\u4f1a\u5c06\u710a\u5c42\u7684\u7279\u6027\u7279\u6027\u963b\u6297\u63d0\u5347\u523075\u03a9\uff08\u6b64\u5b9e\u4f8b\u7684\u603b\u4f53\u76ee\u6807\u7279\u6027\u963b\u6297\uff09\u4ee5\u4e0a\u3002\u4e3a\u4e86\u66f4\u597d\u5730\u4f7f\u7279\u6027\u963b\u6297\u4fee\u590d\u81f3\u76ee\u680775\u03a9\uff0c\u5728\u710a\u5c42\u7684\u4e24\u8fb9\u63d0\u5347\u4e86\u63a5\u5730\u88c5\u7f6e\u94dc\u7247\u3002\u8fd9\u79cd\u63a5\u5730\u88c5\u7f6e\u7247\u6309\u7f6e\u5728\u710a\u5c42\u4e8b\u5148\u754c\u5b9a\u7684\u8ddd\u79bb\u5904\uff0c\u90a3\u6837\u5c31\u80fd\u9020\u6210\u6070\u597d\u5145\u8db3\u7684\u63a5\u5730\u88c5\u7f6e\u85d5\u5408<\/u>\u4ee5\u5b8c\u6210\u9700\u8981\u7684\u7279\u6027\u963b\u6297\u3002\u8be5\u6784\u9020\u7684\u7279\u70b9\u662f\u4e0e\u7ebf\u8def\u677f\u5c42\u53e0\u5f7b\u5e95\u4e0d\u76f8\u5e72\uff0c\u56e0\u800c\u53ef\u5728\u53cc\u5c42\u7535\u6e90\u8bbe\u8ba1\u4e2d\u591a\u6b21\u91cd\u590d\u4f7f\u7528\u3002<\/p>\n
\n\t\u5168\u900f\u660e\u7684BNC\u56e2\u5757\u2014\u2014\u63d2\u5f0fBNC<\/p>\n
\n\t\u9488\u5bf9\u63d2\u5f0fBNC\uff0c\u5176\u56e2\u5757\u7531\u9540\u8986\u57cb\u5b54\u4ee5\u53ca\u53d8\u538b\u5668\u63a5\u5730\u7ebf\u4e24\u4e00\u90e8\u5206\u6784\u9020\u6784\u6210\u3002\u9540\u8986\u57cb\u5b54\u76f4\u5f91\u901a\u5e38\u4e3a30~50mil.\u4e3a\u4f7f\u9540\u8986\u57cb\u5b54\u7684\u7279\u6027\u963b\u6297\u7ef4\u6301\u4e3a75\u03a9\uff0c\u5728\u7535\u6e90\u5c42\u4e2d\u5fc5\u987b\u5e94\u7528\u5927\u7a7a\u9699\uff08\u53cd\u710a\u5c42\uff09\u3002\u53cd\u710a\u5c42\u89c4\u683c\u51b3\u7b56\u4e8e\u9540\u8986\u57cb\u5b54\u76f4\u5f91\u53ca\u5176\u7ebf\u8def\u677f\u4e2d\u7684\u7535\u6e90\u5c42\u603b\u6570\u3002\u5e94\u7528\u5927\u7684\u53cd\u710a\u5c42\u540e\uff0c\u53cd\u710a\u5c42\u5730\u533a\u5185\u7684\u53d8\u538b\u5668\u63a5\u5730\u7ebf\u5c06\u7f3a\u5931\u5176GND\u53c2\u7167\uff0c\u5176\u7279\u6027\u963b\u6297\u4fbf\u4f1a\u63d0\u5347\u3002\u4e3a\u5904\u7406\u6b64\u95ee\u9898\uff0c\u5fc5\u987b\u5c06\u77ed\u94dc\u7247\u589e\u52a0\u81f3\u53cd\u710a\u5c42\u5185\uff0c\u4ee5\u786e\u4fdd\u53d8\u538b\u5668\u63a5\u5730\u7ebf\u7684\u7279\u6027\u963b\u6297\u3002\u6700\u5e95\u5c42\u53d8\u538b\u5668\u63a5\u5730\u7ebf\u4e0a\u8fb9\u7684\u7b2c\u4e00\u4e2a\u7535\u6e90\u5c42\u5fc5\u987b\u589e\u52a0\u94dc\u7247\uff0c\u5176\u603b\u5bbd\u901a\u5e38\u4e3a\u5e03\u7ebf\u957f\u5ea6\u76843~5\u500d\u3002<\/p>\n
\n\t\u5728\u8fd9\u91cc\u5b9e\u4f8b\u4e2d\uff0c\u5e95\u7aef\u91d1\u5c5e\u6750\u6599\u5c42\u4e0a\u6269\u5bbd\u7684\u53d8\u538b\u5668\u63a5\u5730\u7ebf\u968f\u610f\u4e00\u4fa7\u90fd\u6309\u7f6e\u4e862\u4e2aGND\u63a5\u5730\u88c5\u7f6e\u7247\u3002\u8fd9\u79cd\u63a5\u5730\u88c5\u7f6e\u7247\u6309\u7f6e\u5728\u53d8\u538b\u5668\u63a5\u5730\u7ebf\u4e8b\u5148\u754c\u5b9a\u597d\u7684\u4f4d\u5b50\u4e0a\uff0c\u90a3\u6837\u5c31\u80fd\u9020\u6210\u6070\u597d\u5145\u8db3\u7684\u63a5\u5730\u88c5\u7f6e\u85d5\u5408\u4ee5\u5b8c\u6210\u77ed\u53d8\u538b\u5668\u63a5\u5730\u7ebf\u9700\u8981\u7684\u7279\u6027\u963b\u6297\u3002\u8be5\u6784\u9020\u7684\u7279\u70b9\u662f\u80fd\u5355\u72ec\u8c03\u6574\u7535\u6e90\u5c42\u4e2d\u7684\u53cd\u710a\u5c42\u4ee5\u64cd\u7eb5\u9540\u8986\u57cb\u5b54\u7279\u6027\u963b\u6297\uff0c\u4e14\u80fd\u5355\u72ec\u8c03\u6574\u4fdd\u62a4\u63a5\u5730\u7247\u7a7a\u9699\u4ee5\u64cd\u7eb5\u53d8\u538b\u5668\u63a5\u5730\u7ebf\u7279\u6027\u963b\u6297\u3002<\/p>\n
\n\tBNC\u56e2\u5757\u8bbe\u8ba1\u65b9\u6848\u63d0\u5347<\/p>\n
\n\tBNC\u56e2\u5757\u8bbe\u8ba1\u65b9\u6848\u6d89\u53ca\u5230\u5728GND\u548cVCC\u91cc\u5c42\u6309\u7f6e\u53cd\u710a\u5c42\u6216\u6e05\u9664\u5c42\uff0c\u6216\u6309\u7f6e\u8868\u5c42GND\u63a5\u5730\u88c5\u7f6e\u7247\uff0c\u4ee5\u9020\u6210\u6070\u597d\u5145\u8db3\u7684\u5206\u5e03\u7535\u5bb9\u6765\u786e\u4fdd\u9700\u8981\u7684\u7279\u6027\u7279\u6027\u963b\u6297\u3002\u56e2\u5757\u5728\u4e8eBNC\u7684\u6570\u636e\u4fe1\u53f7\u7ba1\u811a\u76f4\u5f91\uff0c\u53ca\u5176\u7ebf\u8def\u677f\u4e2d\u7684\u7535\u6e90\u5c42\u603b\u6570\u3002\u5728\u67d0\u79cd\u60c5\u5f62\u4e0b\uff0c\u56e2\u5757\u53ef\u4ee5\u8bbe\u8ba1\u65b9\u6848\u6210\u504f\u79fb\u5141\u5dee\u768475\u03a9\u4ee5\u586b\u8865BNC\u81ea\u8eab\u8f7b\u5ea6\u7684\u7f3a\u70b9\u3002\u7535\u5b50\u5de5\u7a0b\u5e08\u52a1\u5fc5\u4f9d\u636e\u8fc7\u53bb\u7684\u5de5\u4f5c\u7ecf\u9a8c\u6765\u63d0\u5347BNC\u56e2\u5757\uff0c\u5728\u5927\u90e8\u5206\u72b6\u51b5\u4e0b\uff0c\u7ecf\u5e38\u4f1a\u5f00\u5c55\u591a\u6b21\u7ebf\u8def\u677f\u91cd\u8bbe\u8ba1\u65b9\u6848\u3002<\/p>\n
\n\t\u5e94\u7528\u4e09\u7ef4\u78c1\u611f\u5e94\u6a21\u62df\u4eff\u771f\u53ef\u4ee5\u63d0\u5347BNC\u56e2\u5757\u8bbe\u8ba1\u65b9\u6848\u3002\u4eceBNC\u7684\u4e09\u7ef4\u6a21\u578b\uff08\u673a\u68b0\u8bbe\u5907\u5c42\u9762\u548c\u539f\u6750\u6599\u7279\u70b9\uff09\u9010\u6e10\uff0c\u5c06\u63d0\u8bae\u7684\u56e2\u5757\u6784\u9020\u548c\u7ebf\u8def\u677f\u7279\u70b9\uff08\u5e03\u7ebf\u603b\u5bbd\u3001\u91cd\u53e0\u548c\u539f\u6750\u6599\u7279\u70b9\uff09\u952e\u51653D EM\u70e7\u5f55\u5668<\/u>\u3002\u5b9e\u884c\u65f6\u57df\u6a21\u62df\u4eff\u771f\u4ee5\u4fdd\u8bc1\u5408\u4e4e\u76f8\u5173\u56de\u6ce2\u635f\u8017\u548c\u63d2\u5165\u635f\u8017\u7684\u8bbe\u8ba1\u65b9\u6848\u603b\u4f53\u76ee\u6807\uff0c\u8fd8\u80fd\u591f\u5b9e\u884c\u6a21\u62df\u4eff\u771fTDR\u6765\u67e5\u9a8cBNC\u548c\u56e2\u5757\u7684\u7279\u6027\u963b\u6297\u66f2\u7ebf\u56fe\u3002<\/p>\n
\n\tBNC\u7ecf\u9500\u5546\u6709\u5b8c\u5584\u7684BNC\u5b9e\u4f53\u6a21\u578b\uff0c\u5728\u987e\u5ba2\u952e\u5165\u7ebf\u8def\u677f\u5c42\u53e0\u7684\u60c5\u5f62\u4e0b\u8fd0\u4f5c\u6b64\u6a21\u62df\u4eff\u771f\uff0c\u662f\u5168\u65b9\u4f4d\u638c\u63e1BNC\u5b9e\u4f53\u6a21\u578b\u7684\u8f83\u597d\u65b9\u5f0f\u4e4b\u4e00\u3002\u672c\u4e00\u90e8\u5206\u5f97\u51fa\u7684\u6a21\u62df\u4eff\u771f\u5b9e\u4f8b\u7531\u5c04\u9891\u8fde\u63a5\u5668\u7ecf\u9500\u5546Samte<\/u>c\u4f01\u4e1a\u7ed9\u4e88\u3002<\/p>\n
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