{"id":2453,"date":"2019-05-20T03:14:44","date_gmt":"2019-05-20T03:14:44","guid":{"rendered":""},"modified":"2019-05-20T11:15:32","modified_gmt":"2019-05-20T03:15:32","slug":"at89c51%e5%8d%95%e7%89%87%e6%9c%ba%e7%94%b5%e8%af%9d%e9%81%a5%e6%8e%a7%e6%8a%a5%e8%ad%a6%e5%99%a8%e7%94%b5%e8%b7%af%e7%9a%84%e8%ae%be%e8%ae%a1","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=2453","title":{"rendered":"AT89C51\u5355\u7247\u673a\u7535\u8bdd\u9065\u63a7\u62a5\u8b66\u5668\u7535\u8def\u7684\u8bbe\u8ba1"},"content":{"rendered":"

\n\t1 \u5f15 \u8a00<\/p>\n

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\n\t <\/div>\n

\n\t2\u786c\u4ef6\u7535\u8def<\/u>\u8bbe\u8ba1<\/p>\n

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\n\t\"AT89C51\u5355\u7247\u673a\u7535\u8bdd\u9065\u63a7\u62a5\u8b66\u5668\u7535\u8def\u7684\u8bbe\u8ba1\"<\/p>\n

\n\t2.1\u632f\u94c3\u68c0\u6d4b\u7535\u8def\u7535\u8def\u5982\u56fe2\u6240\u793a\u3002\u7535\u8bdd\u7ebf\u632f\u94c3\u4fe1\u53f7\u4e3a25Hz\uff0c75\uff5e100 V\u3002\u56e0\u6b64\u4e0d\u80fd\u76f4\u63a5\u4e0eIC\u7535\u8def\u8fde\u63a5\uff0c\u540c\u65f6\u4e3a\u4e86\u9632\u96f7\u51fb\uff0c\u8f93\u5165\u7aef\u75281 μF\/160v\u7535\u5bb9<\/u>\u8fdb\u884c\u9694\u79bb\u3002\u94c3\u6d41\u58f0\u7ecf\u5168\u6865\u6574\u6d41\u540e\u518d\u7531\u5149\u7535\u8026\u5408\u5668<\/u>\uff0e4N25\u8026\u5408<\/u>\u5e76\u7ecf40106\u6574\u5f62\u540e\u900189C51 TO\u8ba1\u6570\u5668\u8fdb\u884c\u632f\u94c3\u6b21\u6570\u8bb0\u6570\uff0c\u5f53TO\u8bb0\u6570\u4e3a10\u6b21\u65f6\uff0c\u6309\u7ea6\u5b9a\u4e3a\u6709\u4efb\u52a1\u8f93\u5165\uff0c89C51\u8f93\u51fa\u6a21\u62df\u6458\u673a\u4fe1\u53f7\u4f7f\u7ebf\u8def\u63a5\u901a\uff0c\u540c\u65f6\u5355\u7247\u673a\u63a7\u5236\u8bed\u97f3\u63d0\u793a\u7535\u8def“\u8bf7\u7528\u6237\u8f93\u5165\u5bc6\u7801”\u5e76\u901a\u8fc7\u7535\u8bdd\u7ebf\u8def\u5c06\u8f93\u5165\u7684\u5bc6\u7801\u4fe1\u53f7\u9001\u4eba\u53cc\u97f3\u9891DTMF\u89e3\u7801\u7535\u8def\u3002<\/p>\n

\n\t\"AT89C51\u5355\u7247\u673a\u7535\u8bdd\u9065\u63a7\u62a5\u8b66\u5668\u7535\u8def\u7684\u8bbe\u8ba1\"<\/p>\n

\n\t2.2 \u53cc\u97f3\u9891\u89e3\u7801DTMF\u7535\u8def<\/p>\n

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\n\t\"AT89C51\u5355\u7247\u673a\u7535\u8bdd\u9065\u63a7\u62a5\u8b66\u5668\u7535\u8def\u7684\u8bbe\u8ba1\"<\/p>\n

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