Feature
●Specifications: Microphone amplifier module, +2.4V to +5.5V power supply voltage, 112dB power rejection ratio, 126dB common mode rejection ratio, 125dB (RL = 100kΩ) rail-to-rail output AVOL, <24μA quiescent power supply current, 600kHz gain bandwidth, 20.8 x 13.8 x 7.5mm size
●Exquisite material: sound sensor module, using high-quality materials, precise technology, high precision and stable work, stable performance, durable and not easy to damage, long service life, accurate measurement
●Features: Microphone module, high stability, high sensitivity, strong interference ability, professional process processing, stable performance, very practical, sensitive sensor, etc.
●Fast and convenient: precision sensor, small and light appearance, stable performance, quick and convenient installation and disassembly, saving space, relatively light weight, simple operation
●Guarantee: If you have any questions or suggestions, please feel free to contact us. We will do our best to provide you with a pleasant shopping experience
Description
Feature:
1. For amplification, we use the MAX4466, an op amp designed to accomplish this delicate task.
2. With excellent power supply noise rejection, so this amplifier sounds really good and isnt nearly as noisy or scratchy as other mic amp breakouts weve tried.
3. You can set the gain from 25x to 125x, perfect for reading from a microcontroller ADC. The output is rail?to?rail so if the sounds gets loudly, the output can go up to 5Vpp.
4. For the best performance, use the "quietest" supply available. 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 youre using requires AC coupled audio, place a 100uF capacitor between the output pin and the input of your devices. If you are connecting to an audio amplifier that has differential inputs or includes decoupling capacitors, the 100uF cap is not required.
5. Using it is simple: connect GND to ground, VCC to 2.4-5VDC.
6. The output pin is not designed to drive speakers or anything but the smallest in-ear headphones, youll need an audio amplifier (such as our 3.7W stereo amp) if you want to connect the amp directly to speakers.