{"product_id":"mp34dt01-pdm-mems-microphone-module","title":"MP34DT01 PDM MEMS Microphone module","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eApplication\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eComputer\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSTJF\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e-40-+85\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePackage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eDIP\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eVoltage Regulator\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003esemi_Choice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003eLinks to information:\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003ehttps:\/\/pan.baidu.com\/s\/1SnKX3_b6Peelc6KMaQQr0w?pwd=zwsr extracted code: ZWSR\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eA novel microphone has arrived at the Adafruit store, the PDMMEMS Microphone! Apart from analog or I2S, PDM\u003c\/p\u003e \u003cp\u003e\\ is a \"third\" microphone that you can integrate with electronic devices. These microphones are very commonly used in the product, but in the manufacturer item\u003c\/p\u003e \u003cp\u003e\\ Rarely seen. However, they still have some benefits, so we think we will provide a breakthrough for the store.\u003c\/p\u003e \u003cp\u003eThe first thing to note is that this sensor does not provide an \"analog\" output like our electret microphone assembly. So, this is right\u003c\/p\u003e \u003cp\u003eUseful for chips without analog input. Secondly, the digital interface is very simple pulse density modulation output. It is the number\u003c\/p\u003e \u003cp\u003e\\ word, but not PWM, nor I2S. You need to make sure your chip has a PDM interface - these days, most 32\u003c\/p\u003e \u003cp\u003eBit processor can be!\u003c\/p\u003e \u003cp\u003e\\ PDM is a bit like 1-bit PWM. You time the microphone at the 1mhZ-3mhz clock frequency and on the data line\u003c\/p\u003e \u003cp\u003e\\ A square wave synchronized with the clock. The data line is 0 or 1 logical output, and the density generated by the square wave will result when averaged\u003c\/p\u003e \u003cp\u003e\\ Analog value output.\u003c\/p\u003e \u003cp\u003e\\ There are several ways to manage these microphones:\u003c\/p\u003e \u003cp\u003eYour chip comes with hardware peripherals and libraries that can manage all data at high speed, collect samples, apply filters and carry them for you\u003c\/p\u003e \u003cp\u003e\\ For simulation value (ideal!) .\u003c\/p\u003e \u003cp\u003e\\ Your chip comes with hardware peripherals that provide you with value, and then it's up to you to perform extraction\/filtering. (we are in\u003c\/p\u003e \u003cp\u003e\\ Some sample code on ATSAMD21 chipset)\u003c\/p\u003e \u003cp\u003e\\ Your chip is not equipped with hardware peripherals, but you are very smart and have come up with a way to make it work (relevant\u003c\/p\u003e \u003cp\u003e\\ ATtiny85, see this example)\u003c\/p\u003e \u003cp\u003e\\ You generate a high-speed clock, then add an analog filter on the data line, and read the analog value (hack, but ok!).\u003c\/p\u003e \u003cp\u003eWhichever way you decide to go, make sure you understand the support the platform offers, because these chips can be tricky!\u003c\/p\u003e \u003cp\u003e\\ Each order comes with a fully assembled and tested microphone and a small plug for welding the breadboard. please\u003c\/p\u003e \u003cp\u003e\\ Check out our complete guide for wiring details, schematics, sample code, data sheets, and more!\u003c\/p\u003e \u003cp\u003e\\ Technical details\u003c\/p\u003e \u003cp\u003e\\ Voltage range: 1.8-3.3V\u003c\/p\u003e \u003cp\u003e\\ Clock frequency: 1-3.25mhz\u003c\/p\u003e \u003cp\u003e\\ Current consumption: 0.6mA\u003c\/p\u003e \u003cp\u003e\\ SIGNAL to noise ratio: 61dB\u003c\/p\u003e \u003cp\u003e\\ Sensitivity: -26dbfs\u003c\/p\u003e \u003cp\u003e\\ Product size: 14.0mmx12.8mmx2.8mm\/0.6 \"x0.5\" x0.1\"\u003c\/p\u003e \u003cp\u003eItem weight: 0.01kg\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sd694923cd9a9437aac0ce00100f22efb1.jpg\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/Sd694923cd9a9437aac0ce00100f22efb1.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S48a626419b0b476abb349035489617456.jpg\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/S48a626419b0b476abb349035489617456.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S4e4f20b8e555404abe2014c4c478e69dm.jpg\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/S4e4f20b8e555404abe2014c4c478e69dm.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S6d1f92a8a9a448439759903cfc80f726v.jpg\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/S6d1f92a8a9a448439759903cfc80f726v.jpg\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Yoeruyo","offers":[{"title":"Default Title","offer_id":55467830116651,"sku":"\u003cnone\u003e","price":23.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S1e66de1a8d864d1899b6514da3c97ce2q.webp?v=1788844857","url":"https:\/\/yoeruyo.com\/products\/mp34dt01-pdm-mems-microphone-module","provider":"Yoeruyo","version":"1.0","type":"link"}