{"product_id":"3pcs-cjmcu-4466-max4466-electret-microphone-adjustable-amplifier-cma-4544pf-w-for_1162466","title":"3Pcs CJMCU-4466 MAX4466 Electret Microphone Adjustable Amplifier CMA-4544PF-W For","description":"\u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e  \u003cbr\u003e  \u003cspan style=\"font-size:14px;\"\u003eAdd an ear to your project with this well-designed electret microphone amplifier. This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on. For the amplification, we use the Maxim MAX4466, an op-amp specifically designed for this delicate task! The amplifier has excellent power supply noise rejection, so this amplifier sounds really good and isn't nearly as noisy or scratchy as other mic amp breakouts we've tried!\u003cbr\u003e  \u003cbr\u003e  This breakout is best used for projects such as voice changers, audio recordingmpling, and audio-reactive projects that use FFT. On the back, we include a small trimmer pot to adjust the gain. You can set the gain from 25x to 125x. That's down to be about 200mVpp (for normal speaking volume about 6\" away) which is good for attaching to something that expects 'line level' input without clipping, or up to about 1Vpp, ideal for reading from a microcontroller ADC. The output is rail-to-rail so if the sounds gets loud, the output can go up to 5Vpp!\u003cbr\u003e  \u003cbr\u003e  Using it is simple: connect GND to ground, VCC to 2.4-5VDC. For the best performance, use the \"quietest\" supply available (on an , this would be the 3.3V supply). The audio waveform will come out of the OUT pin. The output will have a DC bias of VCC\/2 so when its perfectly quiet, the voltage will be a steady VCC\/2 volts (it is DC coupled). If the audio equipment you're using requires AC coupled audio, place a 100uF capacitor between the output pin and the input of your device. If you're connecting to an audio amplifier that has differential inputs or includes decoupling capacitors, the 100uF cap is not required.\u003cbr\u003e  \u003cbr\u003e  The output pin is not designed to drive speakers or anything but the smallest in-ear headphones - you'll need \u003cspan style=\"color:#656078(255, 0, 0);\"\u003ean audio amplifier (such as our 3.7W stereo amp) if you want to connect the amp directly to speakers\u003c\/span\u003e. If you're connecting to a microcontroller pin, you don't need an amplifier or decoupling capacitor - connect the OUT pin directly to the microcontroller ADC pin.\u003cbr\u003e  \u003cbr\u003e  For audio-reactive projects, \u003cspan style=\"color:#656078(255, 0, 0);\"\u003ewe suggest using an FFT driver library\u003c\/span\u003e (such as the one in this library) which can take the audio input and 'translate' it into frequencies. Also, check out this awesome Voice Changer project that uses this mic and an Adafruit Wave Shield!\u003c\/span\u003e\u003cbr\u003e  \u003cbr\u003e  \u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e  \u003cbr\u003e  \u003cspan style=\"font-size:14px;\"\u003e3 x Electret Microphone Adjustable Amplifier\u003c\/span\u003e\u003cbr\u003e  \u003cbr\u003e  \u003cdiv style=\"text-align: center;\"\u003e   \u003cbr\u003e   \u003cdiv style=\"text-align: center;\"\u003e    \u003cbr\u003e    \u003cbr\u003e    \u003cdiv style=\"text-align: center;\"\u003e     \u003c\/div\u003e   \u003c\/div\u003e  \u003c\/div\u003e  ,,","brand":"Banggood","offers":[{"title":"Default Title","offer_id":31968913850506,"sku":"U2I-BG-1162466","price":5334.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0300\/1588\/1354\/products\/3615c896-64f0-49df-87cb-2df6562c0a24.jpg?v=1580171349","url":"https:\/\/shop2india.com\/products\/3pcs-cjmcu-4466-max4466-electret-microphone-adjustable-amplifier-cma-4544pf-w-for_1162466","provider":"SHOP2INDIA GATEWAY","version":"1.0","type":"link"}