{"product_id":"max9814-microphone-amplifier-module-with-automatic-gain-control-agc","title":"MAX9814 Microphone Amplifier Module with Automatic Gain Control AGC","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe MAX9814 Microphone Amplifier Module is a high-quality electret microphone amplifier board featuring built-in Automatic Gain Control (AGC). It is designed to amplify microphone audio signals while automatically adjusting the gain according to changes in sound level. This makes it suitable for electronics projects where audio levels can vary significantly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe module is based on the MAX9814 microphone amplifier IC, which integrates a low-noise preamplifier, variable gain amplifier, output amplifier, microphone bias circuit, and AGC circuitry. The amplifier provides selectable maximum gains of 40dB, 50dB, or 60dB and operates from a 2.7V to 5.5V single supply. The built-in microphone bias circuit is designed to support most electret microphones.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis module can be used with Arduino, ESP32, ESP8266, Raspberry Pi, and other microcontroller or development boards with analog audio input capability. It is suitable for voice detection, sound-reactive LED projects, audio monitoring, voice recording, sound measurement, robotics, IoT projects, and other DIY electronics applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSpecifications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eModule Name: MAX9814 Microphone Amplifier Module\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIC: MAX9814\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModule Type: Electret Microphone Amplifier with AGC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAudio Input: Electret Microphone\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAutomatic Gain Control: Yes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSelectable Maximum Gain: 40dB \/ 50dB \/ 60dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupply Voltage: 2.7V to 5.5V DC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMicrophone Bias: Internal low-noise 2V bias\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePreamplifier Gain: 12dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVariable Gain Amplifier: 0dB to 20dB automatic adjustment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOutput Amplifier Gain: 8dB \/ 18dB \/ 28dB selectable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLow Input-Referred Noise Density: 30nV\/√Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTypical Total Harmonic Distortion: 0.04%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOutput: Analog audio signal\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eShutdown Function: Supported by MAX9814 IC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eApplication: Voice Detection, Sound Detection, Audio Recording, Sound Reactive Projects\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible Platforms: Arduino, ESP32, ESP8266, Raspberry Pi and other compatible controllers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable For: DIY Electronics, Robotics, IoT, Audio Projects and Educational Projects\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MAJESTRONICZ","offers":[{"title":"Default Title","offer_id":48054156165278,"sku":null,"price":249.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/9257\/2574\/files\/max9814-high-performance-microphone-agc-amplifier-module1-1100x1100.webp?v=1785220520","url":"https:\/\/majestronicz.in\/products\/max9814-microphone-amplifier-module-with-automatic-gain-control-agc","provider":"MAJESTRONICZ","version":"1.0","type":"link"}