{"id":2526,"date":"2019-05-29T00:48:08","date_gmt":"2019-05-29T00:48:08","guid":{"rendered":""},"modified":"2019-05-29T08:48:32","modified_gmt":"2019-05-29T00:48:32","slug":"6%e7%a7%8d%e9%9f%b3%e9%a2%91%e7%94%b5%e5%ad%90%e5%bc%80%e5%85%b3%e7%94%b5%e8%b7%af%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=2526","title":{"rendered":"6\u79cd\u97f3\u9891\u7535\u5b50\u5f00\u5173\u7535\u8def\u5206\u6790"},"content":{"rendered":"
\n\t\u7535\u5b50\u97f3\u9891\u5f00\u5173<\/u>\u7684\u7535\u8def<\/u>\u539f\u7406\u56fe<\/p>\n
\n\t<\/p>\n
\n\t\u56fe\u4e2d\u865a\u7ebf\u6240\u6846\u90e8\u5206\uff0c\u53ef\u5bf9\u97f3\u9891\u4fe1\u53f7\u8fdb\u884c\u901a\u65ad\u63a7\u5236\u3002\u6b64\u5916\uff0c\u5728\u8f93\u51fa\u7aef\u63a5\u4e00\u70b9\u4f4d\u5668\u53ef\u4f7f\u4fe1\u53f7\u5012\u76f8\u3002<\/p>\n
\n\tT1\u662f\u4e00\u4e2a\u5fae\u578b\u97f3\u9891\u9694\u79bb\u53d8\u538b\u5668<\/u>\uff0c\u5176\u6b21\u7ea7\u7ed5\u7ec4\u4e24\u7aef\u901a\u8fc7\u4e24\u4e2a\u6676\u4f53\u7ba1<\/u>\u63a5\u5730\u3002T1\u4e00\u7aef\u7684\u963b\u6297<\/u>\u7531Q1\u786e\u5b9a\uff0c\u53e6\u4e00\u7aef\u963b\u6297\u7531Q2\u786e\u5b9a\u3002\u5982\u679c\u53cc\u7a33\u6001\u7684A\u8f93\u51fa\u4e3a10V\uff0cA\u8f93\u51fa\u4e3a\u4f4e\u7535\u4f4d\uff0c\u5219Q1\u6b63\u5411\u504f\u7f6e\u4e14\u5bfc\u901a\uff0c\u5bf9\u5730\u5448\u963b\u6297\u3002\u540c\u65f6\uff0cQ2\u53cd\u5411\u504f\u7f6e\uff0c\u53d8\u538b\u5668\u7684\u53e6\u4e00\u7aef\u5bf9\u5730\u5b9e\u9645\u4e0a\u662f\u5f00\u8def<\/u>\u3002\u5982\u679c\u53cc\u7a33\u6001\u7684\u72b6\u6001\u5b9e\u9645\u4e0a\u662f\u5f00\u8def\u3002\u5982\u679c\u53cc\u7a33\u6001\u7684\u72b6\u6001\u4e0e\u6b64\u76f8\u53cd\uff0c\u5219\u4e0a\u8ff0\u963b\u6297\u60c5\u51b5\u4ea6\u76f8\u53cd\u3002<\/p>\n
\n\t6\u79cd\u97f3\u9891\u7535\u5b50\u5f00\u5173\u7535\u8def\u5206\u6790<\/p>\n
\n\t\u4e00\u3001LM0037\uff0f1038\u56db\u8def\u7acb\u4f53\u58f0\u5207\u6362\u5f00\u5173\u7535\u8def<\/p>\n
\n\tLM1037\uff0f1038\u7cfb18\u811aDIP<\/u>\u5c01\u88c5\u7684\u7535\u5b50\u97f3\u9891\u5f00\u5173\u96c6\u6210\u7535\u8def\uff0c\u5176\u5185\u90e8\u7535\u8def\u6846\u56fe\u53ca\u57fa\u672c\u5e94\u7528\u7535\u8def\u89c1\u56fe1\u3002<\/p>\n
\n\t<\/p>\n
\n\tLM1037\uff0f1038\u5185\u542b\u903b\u8f91\u63a7\u5236\u3001\u7535\u5b50\u5f00\u5173\u3001\u7f13\u51b2\u3001\u9759\u97f3\u63a7\u5236\u7b49\u7535\u8def\uff0c\u5176\u5916\u56f4\u7535\u8def\u4ea6\u5f88\u7b80\u5355\u3002LM1037\uff0f1038\u7684\u2461\u548c\u2463\u811a\u3001\u2465\u548c\u2467\u811a\u300111\u548c13\u811a\u300117\u548c15\u811a\u5206\u522b\u4e3a\u56db\u8def\u7acb\u4f53\u58f0\u7684\u8f93\u5165\u7aef\uff0c\u2460\u3001\u2462\u300116\u300118\u811a\u4e3a\u5f00\u5173\u63a7\u5236\u7aef\u3002LMl037\u9ad8\u7535\u5e73\u6709\u6548\uff0cLM1038\u4e3aBcD\u7801\u63a7\u5236\u3002\u63a7\u5236\u7aef\u4e3a\u9ad8\u7535\u5e73\u6216BcD\u7801\u65f6\uff0c\u628a1R1L\uff5e4R4L<\/u><\/p>\n
\n\t\u4e2d\u4efb\u610f\u4e00\u7ec4\u8f93\u5165\u4fe1\u53f7\u5207\u6362\u5230F4F5\u7f13\u51b2\u5668\uff0c\u7f13\u51b2\u540e\u5206\u522b\u4ece\u2468\u2469\u811a\u8f93\u51fa\u3002\u4f8b\u5982K1\u63a5“3”\u7aef\u65f6\uff0c2R2L\u7aef\u8f93\u5165\u4fe1\u53f7\u5207\u6362\u81f3\u2468\u2469\u811a\uff0c\u5176\u4f59\u7aef\u8f93\u5165\u4fe1\u53f7\u4e0e\u2468\u3001\u2469\u811a\u5904\u4e8e\u65ad\u5f00\u72b6\u6001\u3002<\/p>\n
\n\t\u2466\u811a\u4e3a\u9759\u97f3\u63a7\u5236\u7aef\uff0c\u9ad8\u7535\u5e73\u6709\u6548\u3002\u2466\u811a\u4e3a\u9ad8\u7535\u5e73\u65f6\uff0cF4F5\u8f93\u5165\u7aef\u5206\u522b\u88abF3F2\u77ed\u8def<\/u>\u5230\u5730\uff0c\u246810\u811a\u65e0\u4fe1\u53f7\u8f93\u51fa\u3002Kl\u7f6e\u7a7a\u6863“O”\u65f6\uff0cF1\u8f93\u51fa\u4e3a\u9ad8\u7535\u5e73\uff0cF2F3\u77ed\u8defF4F5\u7684\u8f93\u5165\u7aef\uff0cIc\u4e5f\u5904\u4e8e\u9759\u97f3\u72b6\u6001\u3002<\/p>\n
\n\tLM1037\u4e0eLM1038\u7684\u5f15\u811a\u529f\u80fd\u3001\u7535\u53c2\u6570\u5747\u76f8\u540c\uff0c\u533a\u522b\u4ec5\u5728\u4e8e\u63a7\u5236\u7aef\u3001\u524d\u8005\u4e3a\u7535\u5e73\u63a7\u5236\uff0c\u540e\u8005\u4e3aBCD\u7801\u63a7\u5236\u3002 \u5b83\u4eec\u7684\u4e3b\u8981\u7535\u53c2\u6570\u89c1\u88681\u3002<\/p>\n
\n\t<\/p>\n
\n\t\u4e8c\u3001TDA1029\u56db\u8def\u7acb\u4f53\u58f0\u5207\u6362\u5f00\u5173\u7535\u8def<\/p>\n
\n\tTDA1029\u7684\u5916\u56f4\u7535\u8def\u6bd4LM1037\uff0f1038\u66f4\u7b80\u6377\uff0c\u4ec5\u4e09\u4e2a\u63a7\u5236\u7aef\u5c31\u80fd\u5207\u6362\u56db\u8def\u7acb\u4f53\u58f0\u3002\u5b83\u867d\u7136\u65e0\u9759\u97f3\u529f\u80fd\uff0c\u4f46\u5931\u771f\u5ea6\u3001\u4fe1\u566a\u6bd4\u7b49\u6307\u6807\u6bd4LM1037\uff0f1038\u7a0d\u4f18\u8d8a\u3002\u5178\u578b\u5e94\u7528\u7535\u8def\u5982\u56fe2\u6240\u793a\u3002<\/p>\n
\n\t<\/p>\n
\n\tTDA1029\u4e3b\u8981\u7535\u53c2\u6570\u4e3a\uff1aVr<\/u>r=6\uff5e25V\uff0c\u572820Hz\uff5e20kHz\u5185\u5178\u578b\u5931\u771f\u5ea6\u4e3a0\uff0e01\uff5e0\uff0e03\uff05\uff0c\u58f0\u9053\u9694\u79bb\u5ea6\u5927\u4e8e70dB\uff08\u4e3b\u8981\u53d6\u51b3\u4e8e\u5916\u56f4\u5143\u4ef6\uff09\uff0c\u4fe1\u566a\u6bd4\u4e3a12dB\u4ee5\u4e0a\uff1b\u8f93\u5165\u7535\u538b\u6700\u5927\u4e3a5\uff0e0V\uff08RMS\uff09\uff1b\u53ef\u5728\u4f4e\u81f3400Ω\u7684\u8d1f\u8f7d\u4e0a\u83b7\u5f97\u7535\u538b\u589e\u76ca\u4e3a1\uff0c\u7535\u6d41<\/u>\u589e\u76ca\u4e3a10\u7684\u4e94\u6b21\u65b9\u7684\u4fe1\u53f7\u8f93\u51fa\uff1b\u8f6c\u6362\u7387\u4e3a2V\/us\uff081\uff0e3MHz\uff09\u3002<\/p>\n
\n\tK\u5206\u522b\u63a5\u52301\u30012\u30013\u30014\u4f4d\u65f6\uff0cINl\u548cIN5\u3001IN2\u548cIN6\u3001IN3\u548cIN7\u3001IN4\u548cIN8\u7aef\u7684\u8f93\u5165\u4fe1\u53f7\u5206\u522b\u5207\u6362\u5230\u8f93\u51fa\u7aef\u3002<\/p>\n
\n\t\u4e09\u3001\u8f7b\u89e6\u5f0f\u56db\u8def\u7acb\u4f53\u58f0\u5207\u6362\u7535\u8def<\/p>\n
\n\t\u56fe3\u4e3a\u4e00\u4f8b\u8f7b\u89e6\u5f0f\u97f3\u9891\u7535\u5b50\u5207\u6362\u7535\u8def\u3002<\/p>\n
\n\t<\/p>\n
\n\t\u8be5\u7535\u8def\u7531\u4e00\u5757\u53cc\u56dbD\u9501<\/u>\u5b58\u56684508\u548c\u4e24\u5757\u56db\u53cc\u5411\u6a21\u62df\u7535\u5b50\u5f00\u5173\u96c6\u6210\u7535\u8def4066\u6784\u6210\u30024508\u7684\u771f\u503c\u8868\u89c1\u88682\u30024508\u7684CP\u7aef\u5728\u8109\u51b2\u7684\u4e0a\u5347\u6cbf\u4f5c\u7528\u4e0b\u63a5\u6536\u4e8c\u6781\u7ba1<\/u>D1\uff5eD4\u7aef\u6570\u636e\uff0c\u5728\u9ad8\u4f4e\u7535\u5e73\u671f\u95f4\u63a5\u6536\u7684\u6570\u636e\u88ab\u9501\u5b58\u3002cL\u7aef\u4e3a“1”\u7535\u5e73\u65f6\u65e0\u6761\u4ef6\u6e05\u96f6\uff1bEN=“l”\u7535\u5e73\u65f6\uff0c\u8f93\u51faQ1\uff5eQ4\u7aef\u4e3a\u9ad8\u963b\u6001\u3002\u8fd9\u91cccL\u548cEN\u7aef\u4e0d\u4f7f\u7528\u800c\u63a5\u5730\u3002c1R1\u5728\u5f00\u673a\u65f6\u4ea7\u751f\u7684\u8109\u51b2\u7528\u4ee5\u5bf94508\u6e05\u96f6\u3002<\/p>\n
\n\tANl\uff5eAN4\u4e3a\u5e38\u5f00\u8f7b\u89e6\u5f0f\u5f00\u5173\uff0c\u4efb\u610f\u6309\u4e00\u4e0b\u5176\u4e2d\u4e00\u4e2a\u5f00\u5173\uff0c\u4f8b\u5982AN3\uff0c+Vcc\u7ecfAN3\u52a0\u81f3Icl\u7684\u2467\u300120\u811a\uff0c\u53e6\u4e00\u8def\u5f84D2\u3001\u52a0\u81f3Icl\u7684\u2461\u300114\u811a\uff08cPl\u53cacP2\u7aef\uff09\u3002\u5728+Vcc\u4e0a\u5347\u6cbf\u4f5c\u7528\u4e0b\uff0cIcl\u63a5\u6536\u2467\u300129\u811a\u6570\u636e\uff08+Vcc\uff09\uff0cAN3\u677e\u5f00\u540e\u6b64\u6570\u636e\u88ab\u9501\u5b58\uff0c\u5373Q13=Q23=“1”\u3002Q23=“1”\u63a5\u901aL\u58f0\u9053\u7535\u5b50\u5f00\u5173\uff1bQ13=“l”\u4f7f\u7535\u5b50\u5f00\u5173Ic2c\u5bfc\u901a\uff0cTuNE\u8f93\u5165\u4fe1\u53f7\u7ecfR8\u3001Ic2c\u9001\u5230TuNE\u8f93\u51fa\u7aef\u53e3\u3002<\/p>\n
\n\t<\/p>\n
\n\t\u56fe4\u4e3a\u53c8\u4e00\u4f8b\u8f7b\u89e6\u5f0f\u56db\u8def\u7acb\u4f53\u5207\u6362\u7535\u8def\u3002\u5b83\u662f\u75314011\u53ca4052\u578bCMos\u96c6\u6210<\/p>\n
\n\t\u7535\u8def\u6784\u6210\u7684\u97f3\u9891\u7535\u5b50\u5207\u6362\u7535\u8def\u30024052\u7684\u771f\u503c\u8868\u89c1\u88683\u3002<\/p>\n
\n\t<\/p>\n
\n\tIC1\u6784\u6210\u4e8c\u4e2aRS<\/u>\u89e6\u53d1\u5668<\/u>\uff0c\u82e5\u6309\u4e00\u4e0bAN1\uff0c\u5219Icl\u2464\u300113\u811a\u83b7\u77ac\u95f4\u4f4e\u7535\u5e73\uff0c\u8f93\u51fa\u7aef\u2463\u300111\u811a\u7ffb\u8f6c\u4e3a\u9ad8\u7535\u5e73\uff0cIc2a\u95e8\u2467\u3001\u2468\u811a\u4e5f\u4e3a\u9ad8\u7535\u5e73\uff0c\u2469\u811a\u53d8\u4e3a\u4f4e\u7535\u5e73\uff0cLEDl\u88ab\u70b9\u4eae\uff0c\u8868\u660e\u8f93\u5165\u4fe1\u53f7\u4e3aPHONO\uff1b\u4e0e\u6b64\u540c\u65f6\uff0cIcl\u7684\u2462\u3001\u2469\u811a\u4e3a“O”\u7535\u5e73\uff0c\u5373IC3\u7684\u2468\u3001\u2469\u811a\u4e3a“00”\u7535\u5e73\uff0c\u6839\u636e\u771f\u503c\u8868Xout=X0\uff0cYout=Y0\uff0c\u4fe1\u53f7\u88ab\u5207\u6362\u5230J11\u3001J21\u8f93\u5165\u7aef\u53e3\u3002\u540c\u7406\uff0c\u6309\u4e00\u4e0bAN3\uff0c\u5219\u4fe1\u53f7\u88ab\u5207\u6362\u5230J13\u3001J23\u8f93\u5165\u53e3\u3002<\/p>\n
\n\t\u56db\u3001\u9065\u63a7\u5f0f\u97f3\u9891\u7535\u5b50\u5207\u6362\u5f00\u5173\u7535\u8def<\/p>\n
\n\tBA5048\uff0f5049\u4e3a\u4e00\u5bf9\u591a\u901a\u9053\u9065\u63a7\u53d1\u5c04\u63a5\u6536\u5904\u7406\u7535\u8def\u30025048\u4e3a\u53d1\u5c04\u7535\u8def\uff0c5049\u4e3a\u63a5\u6536\u7535\u8def\u3002<\/p>\n
\n\t<\/p>\n
\n\tBA5048\u5185\u542b\u632f\u8361\u5668<\/u>\u3001\u5206\u9891\u8ba1\u6570\u5668\u3001\u65f6\u5e8f\u8109\u51b2\u53d1\u751f\u5668\u3001\u9a71\u52a8\u7535\u8def\u7b49\u3002\u5176\u5e94\u7528\u7535\u8def\u89c1\u56fe5\u3002\u2461\u3001\u2462\u811a\u5916\u63a5455kHz\u9676\u74f7\u632f\u5b50\uff0c\u4e0e\u5185\u7535\u8def\u4f5c\u7528\u4ea7\u751f455kHz\u65f6\u57fa\u632f\u8361\u4fe1\u53f7\uff0c\u5f53\u4efb\u610f\u6309\u4e0b\u4e00\u952e\u65f6\uff0c\u952e\u626b\u63cf\u4fe1\u53f7\u7ecf\u5185\u90e8\u7f16\u7801\u5904\u7406\u88ab\u8c03\u5236\u572838kHz\u8f7d\u9891\u4e0a\uff0c\u5df2\u8c03\u5236\u4fe1\u53f7\u4ece15\u811a\u8f93\u51fa\uff0c\u7ecfV1\u653e\u5927\u540e\u9a71\u52a8\u7ea2\u5916<\/u>\u53d1\u5c04\u7ba1L1\u628a\u4fe1\u53f7\u53d1\u5c04\u51fa\u53bb\u3002<\/p>\n
\n\t\u63a5\u6536\u4e0e\u89e3\u8c03\u7535\u8def\u4e3a\u5927\u5bb6\u719f\u77e5\u7684CX20106A\uff0c\u6b64\u5904\u7b80\u5316\u6210\u6846\u56fe\u3002cX20106A\u8f93\u51fa\u7684\u6570\u5b57\u4fe1\u53f7\u9001BA5049\u5904\u7406\u3002\u539f\u7406\u5982\u56fe6\u6240\u793a\u3002<\/p>\n
\n\t<\/p>\n
\n\t\u6309\u4e0b\u53d1\u5c04\u5668\u4e0a\u76f8\u5e94\u952e\u540e\uff0cIc2\u7684Q1\uff5eQ7\u76f8\u5e94\u7684\u8f93\u51fa\u7aef\u8f93\u51fa\u6b63\u8109\u51b2\u3002\u4f8b\u5982\uff0c\u6309\u4e00\u4e0bcD\u952e\uff0cIc2 11\u811a\u8f93\u51fa\u4e00\u6b63\u8109\u51b2\uff0c\u6b64\u6b63\u8109\u51b2\u7ecf\u4e8c\u6781\u7ba1\u5230IC3\u7684D3\u7aef\uff0c\u540c\u65f6\u4e5f\u4f5c\u7528\u5230cPl\u3001cP2\u7aef\u3002Ic3\u5728\u5176\u4e0a\u5347\u6cbf\u4f5c\u7528\u4e0b\u63a5\u6536D3\u7aef\u6570\u636e“1”\uff0c\u5e76\u5728\u8109\u51b2\u8fc7\u53bb\u540e\u9501\u5b58\u6b64\u6570\u636e\uff0c\u5219\u6709Q3=D3=“1”\uff0cM\u7ec4\u4ef6\u4e2dK3\u63a5\u901a\uff0c\u4fe1\u53f7\u5207\u6362\u4e3acD\u4fe1\u53f7\u3002ANl\uff5eAN7\u4e3a\u672c\u673a\u64cd\u4f5c\u952e\uff0c\u7528\u4e8e\u624b\u52a8\u5207\u6362\u3002\u8fd9\u91ccM\u7ec4\u4ef6\u4e2dK1\uff5eK7\u7531\u7528\u6237\u81ea\u5df1\u9009\u53d6\uff0c\u53ef\u4ee5\u4f7f\u7528\u6676\u4f53\u7ba1\u3001\u7ee7\u7535\u5668<\/u>\uff0c\u6a21\u62df\u7535\u5b50\u5f00\u5173cD4066\u7b49\uff0c\u4f7f\u7528\u5fae\u5c0f\u578b\u7ee7\u7535\u5668\u65f6\uff0c\u53ef\u4ee5\u4e0d\u5931\u771f\u5730\u4f20\u9001\u4fe1\u53f7\u3002<\/p>\n
\n\tIC2\u8fd8\u8f93\u51fa\u4e24\u4e2a\u5f7c\u6b64\u53cd\u76f8\u7684\u9ad8\u4f4e\u7535\u5e73\u3002\u6309P+\u952e\uff0cIc2\u2462\u811a\u4e3a\u9ad8\u7535\u5e73\uff0c\u2463\u811a\u4e3a\u4f4e\u7535\u5e73\uff1b\u6309P\u4e00\u952e\uff0c\u2462\u811a\u4e3a\u4f4e\u7535\u5e73\uff0c\u2463\u811a\u4e3a\u9ad8\u7535\u5e73\u3002\u2462\u3001\u2463\u811a\u53ef\u7528\u6765\u63a7\u5236\u7535\u673a\u7684\u6b63\u8f6c\u6216\u53cd\u8f6c\u7b49\u3002<\/p>\n
\n\t\u4e94\u3001\u53ef\u4e0e\u5fae\u5904\u7406\u5668\u63a5\u53e3\u7684\u97f3\u9891\u5207\u6362\u4e0e\u63a7\u5236\u96c6\u6210\u7535\u8defTDA8420<\/p>\n
\n\t\u98de\u5229\u6d66\u516c\u53f8\u7684\u7cfb\u5217\u97f3\u9891\u5207\u6362\u4e0e\u63a7\u5236Ic\u6709TDA8420\u3001TDA8425\u3001TDA7300\u7b49\uff0c\u9002\u5408\u4e8e\u4e0e\u5fae\u673a\u63a5\u53e3\u3002\u56fe7\u4e3aTDA8420\u7684\u5185\u90e8\u7535\u8def\u6846\u56fe\u53ca\u57fa\u672c\u5e94\u7528\u7535\u8def\u3002<\/p>\n
\n\t<\/p>\n
\n\tTDA8420\u5177\u6709\u4e24\u8def\u7acb\u4f53\u58f0\u8f93\u5165\u9009\u62e9\u3001\u4f2a\u7acb\u4f53\u58f0\u3001\u7a7a\u95f4\u97f3\u8272\u3001\u9ad8\u4f4e\u97f3\u3001\u97f3\u91cf\u63a7\u5236\u7b49\u529f\u80fd\u3002\u4e0a\u8ff0\u529f\u80fd\u7684\u63a7\u5236\u901a\u8fc7CLOCK\u3001DATA\u3001ADDRESS\u7aef\u4e0e\u5fae\u673a\u63a5\u53e3\u6765\u5b9e\u73b0\u3002\u7ecf\u8fc7\u5207\u6362\u4e0e\u63a7\u5236\u5904\u7406\u7684\u4fe1\u53f7\u4eceL\u3001R\u7aef\u8f93\u51fa\u3002<\/p>\n
\n\t\u516d\u3001\u591a\u8def\u8f93\u4eba\uff0f\u8f93\u51fa\u97f3\u9891\u5207\u6362\u7535\u8def<\/p>\n
\n\t\u4e0a\u8ff0\u4ecb\u7ecd\u7684\u51e0\u79cd\u7535\u8def\u5747\u628a\u591a\u8def\u8f93\u5165\u5207\u6362\u5230\u4e00\u8def\u8f93\u51fa\u7aef\uff0c\u8fd9\u5728\u67d0\u4e9b\u573a\u5408\u8fd8\u4e0d\u591f\u7528\u3002\u56fe8\u4e3a\u628a\u591a\u8def\u97f3\u9891\u8f93\u5165\u5207\u6362\u52308\u8def\u8f93\u51fa\u7aef\u53e3\u7684\u4e00\u4f8b\u5b9e\u7528\u7535\u8def\u3002<\/p>\n
\n\t<\/p>\n
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\n\t\u95ed\u5408\u7684\u60c5\u51b5\u3002<\/p>\n
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