{"id":15357,"date":"2025-06-15T12:11:53","date_gmt":"2025-06-15T12:11:53","guid":{"rendered":"https:\/\/sistc.com\/?p=15357"},"modified":"2025-06-15T12:11:56","modified_gmt":"2025-06-15T12:11:56","slug":"blog-mems-microphone-specifications-guide","status":"publish","type":"post","link":"https:\/\/sistc.com\/zh\/blog-mems-microphone-specifications-guide\/","title":{"rendered":"\u4e86\u89e3 MEMS \u9ea6\u514b\u98ce\u89c4\u683c\uff1a\u667a\u80fd\u97f3\u9891\u8bbe\u8ba1\u6307\u5357"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\u5bfc\u8a00<\/h2><p>MEMS\uff08\u5fae\u673a\u7535\u7cfb\u7edf\uff09\u9ea6\u514b\u98ce\u6b63\u5728\u5f7b\u5e95\u6539\u53d8\u97f3\u9891\u9886\u57df\uff0c\u4e3a\u5f53\u4eca\u7684\u667a\u80fd\u8bbe\u5907\u63d0\u4f9b\u5c0f\u5de7\u3001\u9ad8\u4fdd\u771f\u548c\u9ad8\u80fd\u6548\u7684\u4ea7\u54c1\u3002\u4ece\u667a\u80fd\u624b\u673a\u5230\u8bed\u97f3\u52a9\u624b\uff0cMEMS \u9ea6\u514b\u98ce\u5982\u4eca\u5df2\u6210\u4e3a <strong>\u884c\u4e1a\u6807\u51c6<\/strong> \u5f97\u76ca\u4e8e\u5176\u7a33\u5b9a\u7684\u6027\u80fd\u548c\u53ef\u6269\u5c55\u6027\u3002<\/p><p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u5de5\u7a0b\u5e08\u5728\u4e3a\u5176\u8bbe\u8ba1\u9009\u62e9\u5408\u9002\u7ec4\u4ef6\u65f6\u9700\u8981\u4e86\u89e3\u7684\u5173\u952e MEMS \u9ea6\u514b\u98ce\u89c4\u683c\u3002\u65e0\u8bba\u60a8\u662f\u5728\u6784\u5efa\u4e0b\u4e00\u4ee3\u53ef\u7a7f\u6234\u8bbe\u5907\u3001\u4eba\u5de5\u667a\u80fd\u8bed\u97f3\u63a5\u53e3\u8fd8\u662f\u7269\u8054\u7f51\u8282\u70b9\uff0c\u4e86\u89e3\u8fd9\u4e9b\u53c2\u6570\u90fd\u5c06\u6709\u52a9\u4e8e\u786e\u4fdd\u6700\u4f73\u7684\u97f3\u9891\u6027\u80fd\u3002<\/p><p>\u70b9\u51fb\u6b64\u5904\u4e86\u89e3\u6211\u4eec\u7684\u9ad8\u6027\u80fd MEMS \u9ea6\u514b\u98ce\u4ea7\u54c1\uff1a<br>\ud83d\udd17 <a class=\"\" href=\"https:\/\/sistc.com\/zh\/product-category\/mems-microphone\/\">https:\/\/sistc.com\/product-category\/mems-microphone\/<\/a><\/p><h2 class=\"wp-block-heading\">\u4ec0\u4e48\u662f MEMS \u9ea6\u514b\u98ce\uff1f<\/h2><p>MEMS \u9ea6\u514b\u98ce\u662f\u57fa\u4e8e\u7845\u7684\u9ea6\u514b\u98ce\uff0c\u5c3a\u5bf8\u5c0f\u81f3 3x2x1 \u6beb\u7c73\u3002\u6bcf\u4e2a\u8bbe\u5907\u5185\u90e8\u90fd\u6709\u4e24\u4e2a\u5173\u952e\u90e8\u4ef6\uff1a<\/p><ul class=\"wp-block-list\"><li><strong>MEMS \u4f20\u611f\u5668<\/strong>:\u5c06\u58f0\u538b\u8f6c\u6362\u4e3a\u7535\u4fe1\u53f7\u7684\u819c\u7247<\/li>\n\n<li><strong>ASIC<\/strong>:\u7279\u5b9a\u5e94\u7528\u96c6\u6210\u7535\u8def\uff0c\u7528\u4e8e\u653e\u5927\u4fe1\u53f7\u5e76\uff08\u5728\u6570\u5b57\u578b\u53f7\u4e2d\uff09\u5c06\u4fe1\u53f7\u6570\u5b57\u5316<\/li><\/ul><p>\u5b83\u4eec\u6709\u4e24\u79cd <strong>\u6a21\u62df\u91cf<\/strong> \u4e0e <strong>\u6570\u5b57<\/strong> \u8f93\u51fa\u7c7b\u578b\uff0c\u4ee5\u53ca <strong>\u4e0a\u53e3<\/strong> \u6216 <strong>\u5e95\u7aef\u53e3<\/strong> \u914d\u7f6e--\u4e3a PCB \u5e03\u5c40\u548c\u58f0\u5b66\u8bbe\u8ba1\u63d0\u4f9b\u4e86\u7075\u6d3b\u6027\u3002<\/p><figure class=\"wp-block-image aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"901\" height=\"352\" src=\"https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/1749989120151.png\" alt=\"\" class=\"wp-image-15358\" style=\"width:635px;height:auto\" srcset=\"https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/1749989120151.png 901w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/1749989120151-300x117.png 300w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/1749989120151-768x300.png 768w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/1749989120151-18x7.png 18w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/1749989120151-600x234.png 600w\" sizes=\"(max-width: 901px) 100vw, 901px\" \/><\/figure><figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"916\" height=\"377\" src=\"https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/1749989198169.png\" alt=\"\" class=\"wp-image-15359\" style=\"width:509px;height:auto\" srcset=\"https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/1749989198169.png 916w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/1749989198169-300x123.png 300w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/1749989198169-768x316.png 768w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/1749989198169-18x7.png 18w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/1749989198169-600x247.png 600w\" sizes=\"(max-width: 916px) 100vw, 916px\" \/><\/figure><h2 class=\"wp-block-heading\">\u4e0e\u9a7b\u6781\u4f53\u9ea6\u514b\u98ce (ECM) \u76f8\u6bd4\u7684\u4e3b\u8981\u4f18\u52bf<\/h2><p>MEMS \u9ea6\u514b\u98ce\u5177\u6709\u4ee5\u4e0b\u4f18\u70b9<\/p><ul class=\"wp-block-list\"><li>\u5360\u5730\u9762\u79ef\u66f4\u5c0f\uff0c\u8bbe\u5907\u66f4\u7d27\u51d1<\/li>\n\n<li>\u9ad8\u4fe1\u566a\u6bd4 (SNR)<\/li>\n\n<li>\u66f4\u597d\u5730\u62b5\u5fa1\u73af\u5883\u53d8\u5316<\/li>\n\n<li>\u8bbe\u5907\u4e0e\u8bbe\u5907\u4e4b\u95f4\u7d27\u5bc6\u7684\u6027\u80fd\u5339\u914d<\/li>\n\n<li>\u4f4e\u529f\u8017<\/li>\n\n<li>\u5177\u6709\u53ef\u9884\u6d4b\u8001\u5316\u7279\u6027\u7684\u7a33\u5065\u7845\u7ed3\u6784<\/li><\/ul><p>\u8fd9\u4e9b\u4f18\u52bf\u4f7f\u5b83\u4eec\u6210\u4e3a\u6d88\u8d39\u7535\u5b50\u4ea7\u54c1\u3001\u6c7d\u8f66\u97f3\u54cd\u548c\u59cb\u7ec8\u5728\u7ebf\u7684\u667a\u80fd\u52a9\u624b\u7684\u7406\u60f3\u9009\u62e9\u3002<\/p><h2 class=\"wp-block-heading\">\u5982\u4f55\u9605\u8bfb MEMS \u9ea6\u514b\u98ce\u6570\u636e\u8868<\/h2><p>\u8981\u4e86\u89e3 MEMS \u9ea6\u514b\u98ce\u7684\u6027\u80fd\uff0c\u9996\u5148\u8981\u638c\u63e1\u51e0\u4e2a\u5173\u952e\u53c2\u6570\uff1a<\/p><h3 class=\"wp-block-heading\">1.\u654f\u611f\u6027<\/h3><p>\u7075\u654f\u5ea6\u8868\u793a\u4f20\u58f0\u5668\u5bf9 94 dB SPL 1kHz \u97f3\u8c03\u7684\u7535\u5b50\u54cd\u5e94\u3002<\/p><ul class=\"wp-block-list\"><li><strong>\u6a21\u62df\u5fae\u673a\u7535\u7cfb\u7edf<\/strong>\uff1a \u4ee5 dBV \u8868\u793a\uff08\u4f8b\u5982\uff0c-38 dBV\uff09<\/li>\n\n<li><strong>\u6570\u5b57\u5fae\u673a\u7535\u7cfb\u7edf<\/strong>\uff1a \u4ee5 dBFS \u8868\u793a\uff08\u4f8b\u5982\uff0c-26 dBFS\uff09<\/li><\/ul><p>\u7075\u654f\u5ea6\u8d8a\u9ad8\uff0c\u610f\u5473\u7740\u76f8\u540c\u58f0\u538b\u8f93\u5165\u4e0b\u7684\u4fe1\u53f7\u8f93\u51fa\u8d8a\u591a\u3002<\/p><p>\ud83d\udcd8 \u89c1 SISTC \u7684 <a class=\"\" href=\"https:\/\/sistc.com\/zh\/product-category\/mems-microphone\/\">\u6a21\u62df\u548c\u6570\u5b57 MEMS \u9ea6\u514b\u98ce<\/a> \u7528\u4e8e\u8de8\u7075\u654f\u5ea6\u8303\u56f4\u7684\u9009\u9879\u3002<\/p><h3 class=\"wp-block-heading\">2.\u4fe1\u566a\u6bd4\uff08SNR\uff09<\/h3><p>\u4fe1\u566a\u6bd4\u6d4b\u91cf\u7684\u662f\u53c2\u8003\u4fe1\u53f7\uff0894 dB SPL\uff09\u548c\u4fe1\u53f7\u4e4b\u95f4\u7684\u5dee\u503c\u3002 <strong>\u58f0\u5b66\u566a\u97f3\u5e95\u9650<\/strong>.\u66f4\u9ad8\u7684\u4fe1\u566a\u6bd4 = \u66f4\u6e05\u6670\u3001\u66f4\u5e72\u51c0\u7684\u8bed\u97f3\u62fe\u53d6\u3002<\/p><ul class=\"wp-block-list\"><li>\u5178\u578b\u4fe1\u566a\u6bd4\uff1a60-75 dB A \u7ea7\u52a0\u6743<\/li>\n\n<li>\u5bf9\u4e8e <strong>\u8fdc\u573a\u8bed\u97f3\u8bc6\u522b<\/strong> \u4e0e <strong>\u566a\u97f3\u6d88\u9664<\/strong><\/li><\/ul><p>\ud83d\udd0d \u5373\u4f7f\u5728\u5608\u6742\u7684\u73af\u5883\u4e2d\uff0c\u4fe1\u566a\u6bd4\u8d85\u8fc7 70 dB \u7684\u9ea6\u514b\u98ce\u4e5f\u80fd\u53ef\u9760\u5730\u5de5\u4f5c\u3002<\/p><h3 class=\"wp-block-heading\">3.\u603b\u8c10\u6ce2\u5931\u771f (THD)<\/h3><p>\u603b\u8c10\u6ce2\u5931\u771f\uff08THD\uff09\u91cf\u5316\u4e86\u9ad8\u8f93\u5165\u7535\u5e73\u4e0b\u7684\u5931\u771f\u7a0b\u5ea6\u3002<\/p><ul class=\"wp-block-list\"><li>1% \u603b\u8c10\u6ce2\u5931\u771f\u4e00\u822c\u88ab\u8ba4\u4e3a\u662f\u9608\u503c\u3002 <strong>\u7eaf\u51c0\u97f3\u9891<\/strong><\/li>\n\n<li>\u73b0\u4ee3 MEMS \u9ea6\u514b\u98ce\u53ef\u4fdd\u6301\u5728 1% \u4ee5\u4e0b\uff0c\u58f0\u538b\u7ea7\u6700\u9ad8\u53ef\u8fbe 122 \u5206\u8d1d<\/li>\n\n<li>\u6570\u5b57 MEMS \u5305\u62ec THD+N\uff08\u603b\u8c10\u6ce2\u5931\u771f + \u566a\u97f3\uff09<\/li><\/ul><p>\ud83d\udcc8 \u4f4e\u603b\u8c10\u6ce2\u5931\u771f\uff08THD\uff09\u786e\u4fdd\u5728\u5927\u97f3\u91cf\u5f55\u97f3\u65f6\u8bed\u97f3\u66f4\u6e05\u6670\u3002<\/p><h3 class=\"wp-block-heading\">4.\u58f0\u5b66\u548c\u7535\u6c14\u566a\u58f0\u4e0b\u9650<\/h3><p>\u8fd9\u5b9a\u4e49\u4e86 <strong>\u6700\u5c0f\u4fe1\u53f7<\/strong> \u5728\u80cc\u666f\u6216\u7535\u8def\u566a\u97f3\u6d88\u5931\u4e4b\u524d\uff0c\u9ea6\u514b\u98ce\u80fd\u68c0\u6d4b\u5230\u7684\u566a\u97f3\u3002<\/p><ul class=\"wp-block-list\"><li>\u5178\u578b\u672c\u5e95\u566a\u58f0\uff1a ~30 dB SPL<\/li>\n\n<li>\u7535\u6c14\u672c\u5e95\u566a\u58f0\uff1a\u4ee5 dBV \u6216 dBFS \u8868\u793a<\/li><\/ul><p>\u8bbe\u8ba1\u5de5\u7a0b\u5e08 <strong>\u4f4e\u97f3\u91cf\u97f3\u9891\u91c7\u96c6<\/strong> \u5e94\u4f18\u5148\u4f7f\u7528\u5177\u6709 <strong>\u4f4e\u566a\u5e95\u548c\u9ad8\u4fe1\u566a\u6bd4<\/strong>.<\/p><h3 class=\"wp-block-heading\">5.\u58f0\u97f3\u8fc7\u8f7d\u70b9<\/h3><p>\u8fd9\u662f\u58f0\u538b\u7ea7\uff08\u4f8b\u5982 120-126 dB SPL\uff09\uff0c\u5728\u8be5\u58f0\u538b\u7ea7\u4e0b\u9ea6\u514b\u98ce\u5f00\u59cb <strong>\u526a\u8f91<\/strong> \u6216\u56e0\u5185\u90e8\u673a\u68b0\u9650\u5236\u800c\u53d8\u5f62\u3002<\/p><p>\u5982\u679c\u60a8\u5e0c\u671b\u6355\u6349\u4ee5\u4e0b\u5185\u5bb9\uff0c\u8bf7\u9009\u62e9\u8fc7\u8f7d\u70b9\u9ad8\u7684\u9ea6\u514b\u98ce <strong>\u5608\u6742\u73af\u5883<\/strong> \u5982\u97f3\u4e50\u4f1a\u3001\u5de5\u5382\u8f66\u95f4\u6216\u6c7d\u8f66\u9a7e\u9a76\u5ba4\u3002<\/p><h2 class=\"wp-block-heading\">\u4e3a\u60a8\u7684\u5e94\u7528\u9009\u62e9\u5408\u9002\u7684 MEMS \u9ea6\u514b\u98ce<\/h2><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5e94\u7528<\/th><th>\u4e3b\u8981\u89c4\u683c\u91cd\u70b9<\/th><th>\u63a8\u8350\u529f\u80fd<\/th><\/tr><\/thead><tbody><tr><td>\u667a\u80fd\u626c\u58f0\u5668<\/td><td>\u4fe1\u566a\u6bd4\u3001\u603b\u8c10\u6ce2\u5931\u771f<\/td><td>\u6570\u5b57\u5f0f\u9876\u90e8\u7aef\u53e3\uff0c\u9ad8\u4fe1\u566a\u6bd4<\/td><\/tr><tr><td>\u8033\u585e\u548c\u542c\u529b\u8bbe\u5907<\/td><td>\u529f\u7387\u3001\u5c3a\u5bf8<\/td><td>\u6a21\u62df\u5e95\u90e8\u7aef\u53e3\uff0c\u4f4e\u7535\u6d41<\/td><\/tr><tr><td>\u8bed\u97f3\u52a9\u624b<\/td><td>\u8fdc\u573a\u3001\u6e05\u6670\u5ea6<\/td><td>70+ dB SNR\uff0c\u6ce2\u675f\u6210\u5f62<\/td><\/tr><tr><td>\u6c7d\u8f66<\/td><td>\u8fc7\u8f7d\uff0cPSRR<\/td><td>\u9ad8\u603b\u8c10\u6ce2\u5931\u771f\u51c0\u7a7a\u3001\u7535\u78c1\u5e72\u6270\u7a33\u5065\u6027<\/td><\/tr><\/tbody><\/table><\/figure><p>\u63a2\u7d22\u5408\u9002\u7684\u4ea7\u54c1\uff1a<br>\ud83d\udd17 <a class=\"\" href=\"https:\/\/sistc.com\/zh\/product-category\/mems-microphone\/\">\u7528\u4e8e\u667a\u80fd\u8bbe\u5907\u7684 MEMS \u9ea6\u514b\u98ce<\/a><\/p><h2 class=\"wp-block-heading\">\u5176\u4ed6\u6280\u672f\u8d44\u6e90<\/h2><ul class=\"wp-block-list\"><li>\u5982\u9700\u6df1\u5165\u4e86\u89e3 MEMS \u9ea6\u514b\u98ce\u53c2\u6570\uff0c\u8bf7\u53c2\u9605 Cirrus Logic \u7684 <a href=\"https:\/\/www.cirrus.com\/products\/mems\/\">\u5e94\u7528\u8bf4\u660e<\/a> \u63d0\u4f9b\u4e86\u8be6\u7ec6\u7684\u5206\u7c7b\u3002<\/li>\n\n<li>\u5982\u679c\u60a8\u6b63\u5728\u4f18\u5316 VUI \u8bbe\u8ba1\uff0c\u8bf7\u9605\u8bfb\u6211\u4eec\u7684\u6587\u7ae0 <a href=\"https:\/\/sistc.com\/zh\/blog-high-snr-mems-microphones-conversational-ai\/\">\u7528\u4e8e\u4eba\u5de5\u667a\u80fd\u5bf9\u8bdd\u7684\u9ad8 SNR \u5fae\u673a\u7535\u7cfb\u7edf<\/a><\/li><\/ul><h2 class=\"wp-block-heading\">\u7ed3\u8bba<\/h2><p>MEMS \u9ea6\u514b\u98ce\u5df2\u6210\u4e3a <strong>\u73b0\u4ee3\u97f3\u9891\u91c7\u96c6\u6807\u51c6<\/strong>\u4e86\u89e3\u5b83\u4eec\u7684\u89c4\u683c\u6709\u52a9\u4e8e\u5de5\u7a0b\u5e08\u6784\u5efa\u66f4\u667a\u80fd\u3001\u66f4\u9ad8\u6027\u80fd\u7684\u97f3\u9891\u7cfb\u7edf\u3002<\/p><p>\u65e0\u8bba\u60a8\u9700\u8981\u7684\u662f\u8d85\u4f4e\u566a\u58f0\u3001\u9ad8\u52a8\u6001\u8303\u56f4\u8fd8\u662f\u7d27\u51d1\u5916\u5f62\u3001 <strong>SISTC \u7684 MEMS \u9ea6\u514b\u98ce\u4ea7\u54c1\u7ec4\u5408<\/strong> \u652f\u6301\u5e7f\u6cdb\u7684\u5e94\u7528\u548c\u67b6\u6784\u3002<\/p><p>\ud83d\udce2 \u51c6\u5907\u597d\u6253\u9020\u66f4\u667a\u80fd\u7684\u8bed\u97f3\u4ea7\u54c1\u4e86\u5417\uff1f<br>\ud83d\udc49 <a href=\"https:\/\/sistc.com\/zh\/contact\/\">\u8054\u7cfb\u6211\u4eec\u7684\u5de5\u7a0b\u56e2\u961f<\/a><\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u5bfc\u8a00 MEMS\uff08\u5fae\u673a\u7535\u7cfb\u7edf\uff09\u9ea6\u514b\u98ce\u6b63\u5728\u5f7b\u5e95\u6539\u53d8\u97f3\u9891\u9886\u57df\uff0c\u4e3a\u5f53\u4eca\u7684\u667a\u80fd\u8bbe\u5907\u63d0\u4f9b\u5c0f\u5de7\u3001\u9ad8\u4fdd\u771f\u548c\u9ad8\u80fd\u6548\u7684\u4ea7\u54c1\u3002\u4ece\u667a\u80fd\u624b\u673a\u5230\u8bed\u97f3\u52a9\u624b\uff0cMEMS \u9ea6\u514b\u98ce\u73b0\u5df2 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