{"id":15316,"date":"2025-06-07T12:36:27","date_gmt":"2025-06-07T12:36:27","guid":{"rendered":"https:\/\/sistc.com\/?p=15316"},"modified":"2025-06-07T12:38:17","modified_gmt":"2025-06-07T12:38:17","slug":"news-low-power-iot-mems-microphone-rp2040","status":"publish","type":"post","link":"https:\/\/sistc.com\/zh\/news-low-power-iot-mems-microphone-rp2040\/","title":{"rendered":"\u4f7f\u7528 RP2040 \u548c PDM \u9ea6\u514b\u98ce\u4f18\u5316\u57fa\u4e8e MEMS \u7684\u97f3\u9891\u7269\u8054\u7f51\u7cfb\u7edf\u7684\u80fd\u6548"},"content":{"rendered":"<p>\u968f\u7740\u7269\u8054\u7f51\uff08IoT\uff09\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u5bf9\u9ad8\u80fd\u6548\u5d4c\u5165\u5f0f\u7cfb\u7edf\u7684\u9700\u6c42\u4e5f\u5728\u4e0d\u65ad\u589e\u52a0\uff0c\u5c24\u5176\u662f\u90a3\u4e9b\u8d1f\u8d23\u4ee5\u4e0b\u4efb\u52a1\u7684\u8bbe\u5907 <strong>\u8fde\u7eed\u97f3\u9891\u76d1\u63a7<\/strong>\u4f8b\u5982\u667a\u80fd\u5bb6\u5c45\u52a9\u624b\u3001\u5b89\u5168\u4f20\u611f\u5668\u6216\u58f0\u63a7\u53ef\u7a7f\u6234\u8bbe\u5907\u3002<\/p><p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6700\u8fd1\u7684\u4e00\u9879\u7814\u7a76\u63a2\u8ba8\u4e86 <strong>\u4ee5\u97f3\u9891\u4e3a\u4e2d\u5fc3\u7684\u7269\u8054\u7f51\u7cfb\u7edf\u7684\u529f\u8017\u66f2\u7ebf<\/strong>\uff0c\u4f7f\u7528 <strong>RP2040 MCU<\/strong> \u548c\u4e00\u4e2a <strong>PDM \u8f93\u51fa MEMS \u9ea6\u514b\u98ce<\/strong>.\u8fd9\u79cd\u8bbe\u7f6e\u53ef\u4ee5 <strong>\u672c\u5730\u97f3\u9891\u5f55\u5236\u3001\u5904\u7406\uff08FFT\u3001FIR\u3001\u81ea\u76f8\u5173\uff09\u548c\u57fa\u4e8e UART \u7684\u6570\u636e\u4f20\u8f93<\/strong>\u6a21\u62df\u771f\u5b9e\u7684\u7269\u8054\u7f51\u5de5\u4f5c\u8d1f\u8f7d\u3002<\/p><h3 class=\"wp-block-heading\"><strong>\u80fd\u6e90\u5206\u6790\u4e3a\u4f55\u91cd\u8981<\/strong><\/h3><p>\u8017\u7535\u91cf\u76f4\u63a5\u5f71\u54cd<\/p><ul class=\"wp-block-list\"><li><strong>\u7535\u6c60\u5bff\u547d<\/strong> \u5728\u8fdc\u7a0b\u6216\u53ef\u7a7f\u6234\u8bbe\u5907\u4e2d<\/li>\n\n<li><strong>\u70ed\u8db3\u8ff9<\/strong> \u5728\u7d27\u5bc6\u96c6\u6210\u7cfb\u7edf\u4e2d<\/li>\n\n<li><strong>\u53ef\u6301\u7eed\u6027\u548c\u7ef4\u62a4\u5468\u671f<\/strong> \u7528\u4e8e\u5de5\u4e1a\u6216\u5546\u4e1a\u5b89\u88c5<\/li><\/ul><p>\u901a\u8fc7\u4ed4\u7ec6\u6d4b\u91cf\u7cfb\u7edf\u7684\u591a\u79cd\u8fd0\u884c\u72b6\u6001\uff0c\u5305\u62ec <strong>\u6d3b\u52a8\u6a21\u5f0f\u3001\u6d45\u7761\u7720\u6a21\u5f0f\u3001\u6df1\u7761\u7720\u6a21\u5f0f\u548c\u4f11\u7720\u6a21\u5f0f<\/strong> - \u8be5\u7814\u7a76\u4e3a\u5e0c\u671b\u5927\u89c4\u6a21\u90e8\u7f72\u8bed\u97f3\u7269\u8054\u7f51\u8bbe\u5907\u7684\u5de5\u7a0b\u5e08\u63d0\u4f9b\u4e86\u53ef\u64cd\u4f5c\u7684\u529f\u7387\u56fe\u3002<\/p><blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\ud83d\udca1 \u6b63\u5728\u4e3a\u60a8\u7684\u4e0b\u4e00\u6b3e\u7269\u8054\u7f51\u4ea7\u54c1\u5bfb\u627e\u8d85\u4f4e\u529f\u8017 MEMS \u9ea6\u514b\u98ce\uff1f<br>\u4e86\u89e3\u6211\u4eec\u7684\u5168\u90e8 <a class=\"\" href=\"https:\/\/sistc.com\/zh\/product-category\/mems-microphone\/\">MEMS \u9ea6\u514b\u98ce\u4ea7\u54c1\u7ec4\u5408<\/a> \u4e13\u4e3a\u5d4c\u5165\u5f0f\u548c\u7535\u6c60\u654f\u611f\u578b\u7cfb\u7edf\u8bbe\u8ba1\u3002<\/p><\/blockquote><h3 class=\"wp-block-heading\"><strong>\u4e3b\u8981\u7814\u7a76\u7ed3\u679c<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>\u7761\u7720\u72b6\u6001\uff1a<\/strong> \u4ece\u6fc0\u6d3b\u6a21\u5f0f\u5230\u6df1\u5ea6\u7761\u7720\uff0c\u529f\u8017\u660e\u663e\u964d\u4f4e\uff0c\u9a8c\u8bc1\u4e86\u667a\u80fd\u5524\u9192\u7b56\u7565\u5728\u58f0\u63a7\u5e94\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/li>\n\n<li><strong>\u8ba1\u7b97\u8d1f\u8377\uff1a<\/strong> \u81ea\u76f8\u5173\u6280\u672f\u6d88\u8017\u7684\u7535\u6d41\u6700\u5927\uff0c\u800c FFT \u548c FIR \u5728\u4f18\u5316\u65f6\u949f\u901f\u5ea6\u548c\u7535\u538b\u8bbe\u7f6e\u540e\u6548\u7387\u66f4\u9ad8\u3002<\/li>\n\n<li><strong>\u53d8\u901f\u7bb1\uff1a<\/strong> \u7814\u7a76\u53d1\u73b0\uff0c\u5728\u7a7a\u95f2\u5360\u4e3b\u5bfc\u5730\u4f4d\u7684\u5e94\u7528\u4e2d\uff0c\u4ee5\u8f83\u4f4e\u6ce2\u7279\u7387\u8fdb\u884c UART \u4f20\u8f93\u66f4\u8282\u80fd\uff0c\u800c\u7a81\u53d1\u4f20\u8f93\u5219\u53d7\u76ca\u4e8e\u9ad8\u901f\u4f20\u8f93\u3002<\/li><\/ul><p>\u8fd9\u4e9b\u89c1\u89e3\u6709\u52a9\u4e8e <strong>\u5d4c\u5165\u5f0f\u5f00\u53d1\u4eba\u5458\u7684\u5b9e\u7528\u53c2\u8003\u8d44\u6599<\/strong> \u4f18\u5316\u5176\u7cfb\u7edf\u7ea7\u8bbe\u8ba1 <strong>PDM MEMS \u9ea6\u514b\u98ce\u548c RP2040 \u7ea7\u5904\u7406\u5668<\/strong>.<\/p><h3 class=\"wp-block-heading\"><strong>\u884c\u4e1a\u76f8\u5173\u6027\u548c\u5e94\u7528<\/strong><\/h3><p>\u50cf\u8fd9\u6837\u7684\u4f4e\u529f\u8017\u97f3\u9891\u7cfb\u7edf\u6b63\u8d8a\u6765\u8d8a\u591a\u5730\u5e94\u7528\u4e8e\u5404\u79cd\u9886\u57df\uff1a<\/p><ul class=\"wp-block-list\"><li>\u667a\u80fd\u626c\u58f0\u5668\u548c\u5bf9\u8bb2\u673a<\/li>\n\n<li>\u5236\u9020\u4e1a\u58f0\u5b66\u5f02\u5e38\u68c0\u6d4b<\/li>\n\n<li>\u91ce\u751f\u52a8\u7269\u548c\u73af\u5883\u76d1\u6d4b<\/li>\n\n<li>\u5bb6\u5ead\u81ea\u52a8\u5316\u4e2d\u7684\u58f0\u97f3\u5524\u9192\u5e94\u7528<\/li><\/ul><p>\ud83d\udee0\ufe0f <strong>\u60f3\u51cf\u5c11\u81ea\u5df1\u7269\u8054\u7f51\u7cfb\u7edf\u7684\u80fd\u6e90\u8db3\u8ff9\uff1f<\/strong><br>\u67e5\u770b\u6211\u4eec\u7684 <strong>\u5d4c\u5165\u5f0f\u97f3\u9891\u8bbe\u8ba1\u6700\u4f73\u5b9e\u8df5\u767d\u76ae\u4e66<\/strong> (\u5373\u5c06\u63a8\u51fa\uff09\u548c\u63a2\u7d22 <strong>SISTC \u7684\u8d85\u4f4e\u529f\u8017\u9ea6\u514b\u98ce\u4ea7\u54c1\u3002<\/strong><\/p><h3 class=\"wp-block-heading\"><strong>\u66f4\u591a\u9605\u8bfb\u548c\u5916\u90e8\u53c2\u8003\u8d44\u6599\uff1a<\/strong><\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/datasheets.raspberrypi.com\/rp2040\/rp2040-datasheet.pdf\">RP2040 \u6570\u636e\u8868 - Raspberry Pi \u57fa\u91d1\u4f1a<\/a><\/li>\n\n<li><a class=\"\" href=\"https:\/\/www.researchgate.net\/publication\/382278173\">\u5d4c\u5165\u5f0f\u7269\u8054\u7f51\u97f3\u9891\u7cfb\u7edf\u7684\u80fd\u8017 - ResearchGate<\/a><\/li>\n\n<li><a>\u4ec0\u4e48\u662f MEMS \u9ea6\u514b\u98ce\u4e2d\u7684 PDM - Digikey TechZone<\/a><\/li><\/ul><h3 class=\"wp-block-heading\"><strong>\u5185\u90e8\u94fe\u63a5\uff1a<\/strong><\/h3><ul class=\"wp-block-list\"><li><a class=\"\" href=\"https:\/\/sistc.com\/zh\/product-category\/mems-microphone\/\">\u4ea7\u54c1\u9875\u9762\uff1aMEMS \u9ea6\u514b\u98ce<\/a><\/li>\n\n<li><a href=\"https:\/\/sistc.com\/zh\/contact\/\">\u8054\u7cfb\u6211\u4eec\u83b7\u53d6\u5b9a\u5236\u89e3\u51b3\u65b9\u6848<\/a><\/li><\/ul><h2 class=\"wp-block-heading\"><strong>\u7ed3\u8bba<\/strong><\/h2><p>\u529f\u7387\u66f2\u7ebf\u5206\u6790\u5bf9\u4e8e\u6784\u5efa <strong>\u9ad8\u7535\u6c60\u6548\u7387\u3001\u652f\u6301\u97f3\u9891\u7684\u7269\u8054\u7f51\u7cfb\u7edf<\/strong>.\u901a\u8fc7\u9009\u62e9\u5408\u9002\u7684 MEMS \u9ea6\u514b\u98ce\u5e76\u9488\u5bf9\u52a8\u6001\u5de5\u4f5c\u8d1f\u8f7d\u8c03\u6574\u5d4c\u5165\u5f0f\u7cfb\u7edf\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u6027\u80fd\u548c\u4f7f\u7528\u5bff\u547d\u3002<\/p><p>\u5982\u679c\u60a8\u6b63\u5728\u6784\u5efa\u80fd\u6e90\u611f\u77e5\u3001\u59cb\u7ec8\u5728\u7ebf\u7684\u8bed\u97f3\u63a5\u53e3\uff0c\u90a3\u4e48\u6765\u81ea SISTC \u7684 MEMS \u9ea6\u514b\u98ce\u53ef\u6ee1\u8db3\u8fd9\u4e9b\u8981\u6c42\uff0c\u540c\u65f6\u4fdd\u6301\u4f18\u8d28\u7684\u97f3\u9891\u4fdd\u771f\u5ea6\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>\u968f\u7740\u7269\u8054\u7f51\uff08IoT\uff09\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u5bf9\u9ad8\u80fd\u6548\u5d4c\u5165\u5f0f\u7cfb\u7edf\u7684\u9700\u6c42\u4e5f\u5728\u4e0d\u65ad\u589e\u52a0\uff0c\u5c24\u5176\u662f\u5bf9\u8d1f\u8d23\u6301\u7eed\u97f3\u9891\u76d1\u63a7\u7684\u8bbe\u5907\uff08\u5982\u667a\u80fd\u5bb6\u5c45 [...]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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