{"id":15394,"date":"2025-06-29T07:47:02","date_gmt":"2025-06-29T07:47:02","guid":{"rendered":"https:\/\/sistc.com\/?p=15394"},"modified":"2025-06-29T07:47:05","modified_gmt":"2025-06-29T07:47:05","slug":"blog-mems-microphone-design-for-esp32-s3-voice-applications","status":"publish","type":"post","link":"https:\/\/sistc.com\/zh\/blog-mems-microphone-design-for-esp32-s3-voice-applications\/","title":{"rendered":"\u7528\u4e8e ESP32-S3 \u8bed\u97f3\u5e94\u7528\u7684 MEMS \u9ea6\u514b\u98ce\u8bbe\u8ba1\u6307\u5357"},"content":{"rendered":"<p>\u672c\u6307\u5357\u57fa\u4e8e <strong>Espressif \u7684 ESP32-S3 \u8bed\u97f3\u5f00\u53d1\u677f<\/strong>\u63d0\u4f9b\u6574\u5408\u7684\u6700\u4f73\u505a\u6cd5 <strong>MEMS \u9ea6\u514b\u98ce<\/strong> \u8bed\u97f3\u63a7\u5236\u8bbe\u5907\u3002ESP32-S3 \u662f\u4e00\u6b3e\u529f\u80fd\u5f3a\u5927\u7684\u53cc\u6838 SoC\uff0c\u5185\u7f6e Wi-Fi\u3001\u84dd\u7259\u548c\u8bed\u97f3\u5904\u7406\u529f\u80fd\uff0c\u652f\u6301\u4f4e\u529f\u8017\u8fd0\u884c\uff0c\u662f\u667a\u80fd\u97f3\u9891\u3001\u7269\u8054\u7f51\u548c TWS \u8bbe\u5907\u7684\u7406\u60f3\u4e4b\u9009\u3002<\/p><p>\ud83d\udd17 \u63a2\u7d22\u6765\u81ea SISTC \u7684\u517c\u5bb9 MEMS \u9ea6\u514b\u98ce\uff1a<br>\ud83d\udc49 <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\">MEMS \u9ea6\u514b\u98ce\u7535\u6c14\u6027\u80fd\u8981\u6c42<\/h2><ul class=\"wp-block-list\"><li><strong>\u7c7b\u578b<\/strong> \u5168\u5411 MEMS \u9ea6\u514b\u98ce<\/li>\n\n<li><strong>\u5305\u88c5<\/strong> SMD-4P\uff0c2.8 \u00d7 1.9 \u6beb\u7c73<\/li>\n\n<li><strong>\u67e5\u770b\uff1a<\/strong><\/li><\/ul><figure class=\"wp-block-image aligncenter size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1009\" height=\"1024\" src=\"https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/IMG_9101-1009x1024.jpg\" alt=\"\" class=\"wp-image-15395\" style=\"width:270px;height:auto\" srcset=\"https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/IMG_9101-1009x1024.jpg 1009w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/IMG_9101-296x300.jpg 296w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/IMG_9101-100x100.jpg 100w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/IMG_9101-768x779.jpg 768w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/IMG_9101-1514x1536.jpg 1514w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/IMG_9101-2019x2048.jpg 2019w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/IMG_9101-12x12.jpg 12w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/06\/IMG_9101-600x609.jpg 600w\" sizes=\"(max-width: 1009px) 100vw, 1009px\" \/><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/sistc.com\/wp-content\/uploads\/2024\/12\/WBC2718AT42F1S0-Datasheet_V1.3.pdf\">WBC2718AT42F1S0<\/a><\/figcaption><\/figure><h3 class=\"wp-block-heading\">\u7075\u654f\u5ea6<\/h3><ul class=\"wp-block-list\"><li>\u6a21\u62df\u8bdd\u7b52\uff1a\u2265 -38 dBV @ 1 Pa<\/li>\n\n<li>\u6570\u5b57\u8bdd\u7b52\uff1a \u2265 -26 dBFS<\/li>\n\n<li>\u8bef\u5dee\uff1a\u00b12 dB\uff08\u5efa\u8bae\u9ea6\u514b\u98ce\u9635\u5217\u4e3a \u00b11 dB\uff09<\/li><\/ul><h3 class=\"wp-block-heading\">\u4fe1\u566a\u6bd4\uff08SNR\uff09<\/h3><ul class=\"wp-block-list\"><li>\u6700\u5c0f\u503c62 \u5206\u8d1d<\/li>\n\n<li>\u63a8\u8350\u503c&gt;64 dB<\/li>\n\n<li>\u9891\u7387\u54cd\u5e94\u5728 50 Hz - 16 kHz \u8303\u56f4\u5185 \u00b13 dB<\/li>\n\n<li><strong>PSRR<\/strong>:&gt;55 dB<\/li><\/ul><h2 class=\"wp-block-heading\">\u9ea6\u514b\u98ce\u7ed3\u6784\u8bbe\u8ba1\u6307\u5357<\/h2><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u53c2\u6570<\/th><th>\u5efa\u8bae<\/th><\/tr><\/thead><tbody><tr><td>\u9ea6\u514b\u98ce\u7aef\u53e3\u76f4\u5f84<\/td><td>&gt; 1 \u6beb\u7c73<\/td><\/tr><tr><td>\u58f0\u8154\u5bb9\u79ef<\/td><td>\u5c3d\u53ef\u80fd\u5c0f<\/td><\/tr><tr><td>\u7aef\u53e3\u957f\u5f84\u6bd4<\/td><td>&lt; 2:1<\/td><\/tr><tr><td>\u5916\u58f3\u539a\u5ea6<\/td><td>~1 \u6beb\u7c73\uff08\u5982\u679c\u66f4\u539a\uff0c\u5219\u589e\u5927\u5f00\u53e3\u9762\u79ef\uff09<\/td><\/tr><tr><td>\u9ea6\u514b\u98ce\u5bc6\u5c01<\/td><td>\u4f7f\u7528 <strong>\u7845\u80f6\u5708\u6216\u6ce1\u6cab<\/strong> \u7528\u4e8e\u9694\u632f\u548c\u5bc6\u5c01<\/td><\/tr><tr><td>\u9632\u5c18\u4fdd\u62a4<\/td><td>\u6dfb\u52a0 <strong>\u9ea6\u514b\u98ce\u5b54\u4e0a\u7684\u7f51\u7f69<\/strong><\/td><\/tr><tr><td>\u5e95\u90e8\u7aef\u53e3\u9ea6\u514b\u98ce\u5b89\u88c5<\/td><td>\u6dfb\u52a0 <strong>\u7ed3\u6784\u9694\u79bb<\/strong> \u907f\u514d\u4e0e\u5e73\u9762\u5b8c\u5168\u63a5\u89e6<\/td><\/tr><tr><td>\u5b89\u7f6e<\/td><td>\u907f\u514d\u9760\u8fd1 <strong>\u626c\u58f0\u5668\u6216\u632f\u52a8\u6e90<\/strong><\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">\u9ea6\u514b\u98ce\u9635\u5217\u8bbe\u8ba1\u5efa\u8bae<\/h2><h3 class=\"wp-block-heading\">\u53cc\u9ea6\u514b\u98ce\u9635\u5217<\/h3><ul class=\"wp-block-list\"><li>\u95f4\u8ddd\uff1a <strong>4-6.5 \u5398\u7c73<\/strong><\/li>\n\n<li>\u9ea6\u514b\u98ce\u5bf9\u9ea6\u514b\u98ce\u8f74\uff1a\u4e0e\u6c34\u5e73\u8f74\u5e73\u884c<\/li>\n\n<li>\u5c3d\u53ef\u80fd\u9760\u8fd1\u4ea7\u54c1\u7684\u6c34\u5e73\u4e2d\u5fc3\u653e\u7f6e<\/li><\/ul><h3 class=\"wp-block-heading\">3 \u9ea6\u514b\u98ce\u9635\u5217<\/h3><ul class=\"wp-block-list\"><li>\u5f62\u72b6 <strong>\u7b49\u8fb9\u4e09\u89d2\u5f62<\/strong> (120\u00b0 \u89d2\uff09<\/li>\n\n<li>\u7b49\u95f4\u8ddd\uff1a <strong>4-6.5 \u5398\u7c73<\/strong><\/li><\/ul><h3 class=\"wp-block-heading\">\u9635\u5217\u7ec4\u4ef6\u6307\u5357<\/h3><ul class=\"wp-block-list\"><li>\u4f7f\u7528 <strong>\u76f8\u540c\u578b\u53f7\u548c\u4f9b\u5e94\u5546<\/strong> \u9002\u7528\u4e8e\u6240\u6709\u9ea6\u514b\u98ce<\/li>\n\n<li>\u7075\u654f\u5ea6\u53d8\u5316\uff1a&lt;3 dB<\/li>\n\n<li>\u76f8\u4f4d\u5dee\uff1a&lt;10\u00b0<\/li>\n\n<li>\u4f7f\u7528 <strong>\u76f8\u540c\u7684\u9694\u97f3\u5916\u58f3<\/strong> \u5b9e\u73b0\u4e00\u81f4\u54cd\u5e94<\/li><\/ul><h2 class=\"wp-block-heading\">\u9ea6\u514b\u98ce\u5bc6\u5c01\u9a8c\u8bc1\u6d4b\u8bd5\uff08\u6a61\u76ae\u6ce5\u7b49\u6750\u6599\uff09<\/h2><p>\u9a8c\u8bc1\u9694\u97f3\u5bc6\u5c01\u6027\u80fd\uff1a<\/p><ol class=\"wp-block-list\"><li>\u64ad\u653e <strong>90 \u5206\u8d1d\u58f0\u538b\u7ea7\u7684\u767d\u566a\u58f0<\/strong> \u4ece\u9ea6\u514b\u98ce\u4e0a\u65b9 0.5 \u7c73\u5904<\/li>\n\n<li>\u5f55\u5236\u97f3\u9891\uff08\u6587\u4ef6 A\uff09\u226510 \u79d2\u949f<\/li>\n\n<li>\u7528 <strong>\u6a61\u76ae\u6ce5<\/strong>\u518d\u6b21\u8bb0\u5f55\uff08\u6587\u4ef6 B\uff09<\/li>\n\n<li>\u6bd4\u8f83\u9891\u8c31\uff1a\u76ee\u6807\u8870\u51cf \u226525 dB \u4e4b\u95f4 <strong>100 \u8d6b\u5179 - 8 \u5343\u8d6b<\/strong><ul class=\"wp-block-list\"><li>\u5efa\u8bae\u226530 dB\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u5bc6\u5c01\u6548\u679c<\/li><\/ul><\/li><\/ol><h2 class=\"wp-block-heading\">\u56de\u58f0\u53c2\u8003\u4fe1\u53f7\u8bbe\u8ba1<\/h2><ul class=\"wp-block-list\"><li>\u62bd\u5934\u56de\u97f3\u4fe1\u53f7 <strong>\u9760\u8fd1\u626c\u58f0\u5668\u9a71\u52a8\u5668\uff08DA-PA \u7ea7\uff09<\/strong><\/li>\n\n<li>\u626c\u58f0\u5668\u8f93\u51fa\u603b\u8c10\u6ce2\u5931\u771f\u5e94\u7b26\u5408<ul class=\"wp-block-list\"><li>\u226410% @ 100 Hz<\/li>\n\n<li>\u22646% @ 200 \u8d6b\u5179<\/li>\n\n<li>\u22643% @ 350 Hz+<\/li><\/ul><\/li>\n\n<li>\u9ea6\u514b\u98ce\u4f4d\u7f6e\u7684\u6700\u5927\u58f0\u538b\u7ea7 <strong>\u2264102 dB @ 1 kHz<\/strong><\/li>\n\n<li>\u56de\u58f0\u4fe1\u53f7\u4e0d\u5e94 <strong>\u526a\u8f91 ADC<\/strong> \u8f93\u5165\u7535\u538b<\/li>\n\n<li>\u4f7f\u7528 <strong>\u4f4e\u901a\u6ee4\u6ce2\u5668\uff08\u622a\u6b62\u9891\u7387 &gt;22 kHz\uff09<\/strong> \u5982\u679c\u4ece D \u7c7b\u653e\u5927\u5668\u5206\u63a5<\/li>\n\n<li>\u6355\u6349\u5cf0\u503c\u56de\u97f3 <strong>-3\u81f3-5\u5206\u8d1d<\/strong> \u5937\u4e3a\u5e73\u5730<\/li><\/ul><h2 class=\"wp-block-heading\">\u9ea6\u514b\u98ce\u4e00\u81f4\u6027\u9a8c\u8bc1<\/h2><p>\u786e\u4fdd\u6574\u4e2a\u9635\u5217\u7684\u9ea6\u514b\u98ce\u4e00\u81f4\u6027\uff1a<\/p><ol class=\"wp-block-list\"><li>\u64ad\u653e <strong>0.5 \u7c73\u5904 90 \u5206\u8d1d\u58f0\u538b\u7ea7\u7684\u767d\u566a\u58f0<\/strong> \u8bbe\u5907\u4e0a\u65b9<\/li>\n\n<li>\u6240\u6709\u9ea6\u514b\u98ce\u7684\u8bb0\u5f55\u65f6\u95f4\u226510 \u79d2<\/li>\n\n<li>\u786e\u4fdd\u632f\u5e45\u5dee <strong>&lt;3 \u5206\u8d1d<\/strong><\/li>\n\n<li>\u68c0\u67e5\u5404\u6e20\u9053\u53d6\u6837\u7684\u4e00\u81f4\u6027<\/li><\/ol><h2 class=\"wp-block-heading\">\u5173\u4e8e ESP32-S3\uff1a\u667a\u80fd\u8bed\u97f3\u8bbe\u5907\u7684\u7406\u60f3\u9009\u62e9<\/h2><p>SISTC\u7684 <strong>ESP32-S3<\/strong> Espressif \u7684\u4f4e\u529f\u8017\u53cc\u6838 MCU \u5177\u6709\u5f3a\u5927\u7684\u4eba\u5de5\u667a\u80fd\u8bed\u97f3\u652f\u6301\u529f\u80fd\uff0c\u975e\u5e38\u9002\u5408\u5404\u79cd\u5e94\u7528\uff1a<\/p><ul class=\"wp-block-list\"><li>\u667a\u80fd\u5bb6\u5c45\u63a7\u5236\u5668<\/li>\n\n<li>\u53ef\u7a7f\u6234\u97f3\u9891\u8bbe\u5907<\/li>\n\n<li>USB \u8bed\u97f3\u5916\u8bbe<\/li>\n\n<li>\u8bbe\u5907\u5524\u9192\u8bcd\u548c\u8bed\u97f3\u8bc6\u522b<\/li>\n\n<li>\u7535\u6c60\u4f9b\u7535\u7684\u7269\u8054\u7f51\u8282\u70b9<\/li><\/ul><h3 class=\"wp-block-heading\">\u4eae\u70b9<\/h3><ul class=\"wp-block-list\"><li><strong>Wi-Fi + \u84dd\u7259 LE 5<\/strong><\/li>\n\n<li><strong>2 \u00d7 Xtensa LX7 \u5185\u6838 @ 240 MHz<\/strong><\/li>\n\n<li><strong>384 KB ROM\uff0c512 KB SRAM\uff0c\u652f\u6301\u5916\u90e8\u95ea\u5b58<\/strong><\/li>\n\n<li><strong>2 \u00d7 \u7528\u4e8e\u97f3\u9891\u8f93\u5165\/\u8f93\u51fa\u7684 I\u00b2S \u63a5\u53e3<\/strong><\/li>\n\n<li><strong>\u4f4e\u529f\u8017\u8fd0\u884c\u7684 ULP \u534f\u5904\u7406\u5668<\/strong><\/li>\n\n<li><strong>\u7528\u4e8e\u96c6\u6210\u9ea6\u514b\u98ce\u7684\u591a\u4e2a\u6a21\u62df\u548c\u6570\u5b57 GPIO<\/strong><\/li><\/ul><p>\ud83d\udcd8 ESP32-S3 \u7684\u5b8c\u6574\u89c4\u683c\uff1a <a href=\"https:\/\/www.espressif.com\/en\/products\/socs\/esp32-s3\">Espressif \u5b98\u65b9\u6570\u636e\u8868<\/a><\/p><h2 class=\"wp-block-heading\">\u7ed3\u8bba<\/h2><p>\u4f7f\u7528 ESP32-S3 \u8bbe\u8ba1\u5f3a\u5927\u7684\u8bed\u97f3\u63a5\u53e3\u9700\u8981\u4ed4\u7ec6\u8003\u8651 MEMS \u9ea6\u514b\u98ce\u7279\u6027\u3001\u7ed3\u6784\u58f0\u5b66\u3001\u9635\u5217\u5e03\u5c40\u548c\u56de\u58f0\u4fe1\u53f7\u5904\u7406\u3002\u9075\u5faa\u8fd9\u4e9b\u8bbe\u8ba1\u539f\u5219\u6709\u52a9\u4e8e\u6700\u5927\u9650\u5ea6\u5730 <strong>\u8bed\u97f3\u8bc6\u522b\u51c6\u786e\u7387<\/strong>\u51cf\u5c11\u566a\u97f3\u62fe\u53d6\uff0c\u6539\u5584\u7528\u6237\u4f53\u9a8c <strong>\u667a\u80fd\u97f3\u9891\u5e94\u7528<\/strong>.<\/p><p>\ud83d\udce2 \u9700\u8981\u5e2e\u52a9\u4e3a\u60a8\u7684 ESP32-S3 \u9879\u76ee\u9009\u62e9 MEMS \u9ea6\u514b\u98ce\u5417\uff1f<br>\ud83d\udc49 <a href=\"https:\/\/sistc.com\/zh\/contact\/\">\u8054\u7cfb SISTC<\/a><br>\ud83d\udd0e \u63a2\u7d22\u6211\u4eec\u7684\u5168\u5957\u4ea7\u54c1\u7cfb\u5217\uff1a<br>\ud83d\udc49 <a class=\"\" href=\"https:\/\/sistc.com\/zh\/product-category\/mems-microphone\/\">https:\/\/sistc.com\/product-category\/mems-microphone\/<\/a><\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u672c\u6307\u5357\u57fa\u4e8e Espressif \u7684 ESP32-S3 \u8bed\u97f3\u5f00\u53d1\u677f\uff0c\u63d0\u4f9b\u5c06 MEMS \u9ea6\u514b\u98ce\u96c6\u6210\u5230\u8bed\u97f3\u63a7\u5236\u8bbe\u5907\u4e2d\u7684\u6700\u4f73\u5b9e\u8df5\u3002ESP32-S3 \u662f\u4e00\u6b3e\u529f\u80fd\u5f3a\u5927\u7684\u53cc\u6838 SoC\uff0c\u5185\u7f6e Wi-Fi\u3001[...].<\/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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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Explore best practices in mic placement, acoustic structure, array design, and echo reference tuning.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sistc.com\/zh\/blog-mems-microphone-design-for-esp32-s3-voice-applications\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MEMS Microphone Design Guidelines for ESP32-S3 Voice Applications - SILICON SOURCE\" \/>\n<meta property=\"og:description\" content=\"Learn how to select and design MEMS microphones for ESP32-S3-based voice applications. 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