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Breakout Board for ADMP401 MEMS Microphone

Breakout Board for ADMP401 MEMS Microphone
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Breakout Board for ADMP401 MEMS MicrophoneBreakout Board for ADMP401 MEMS MicrophoneBreakout Board for ADMP401 MEMS MicrophoneBreakout Board for ADMP401 MEMS Microphone
Our Price:  £9.94(Inc. 20% VAT)(£8.28 Exc. VAT)Earn 9 Loyalty Points

SKU:  PPBOB-09868
Part Number:  BOB-09868
Brand:  SparkFun

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  (2 Reviews)

This tiny breakout board features the ADMP401 MEMs microphone. One of the key advantages to this breakout and microphone is the bottom ported input. This means the microphone’s input can fit flush against the enclosure of your project. Plus you will not have to deal with trying to solder the microphone’s wacky footprint. Wootness!

The amplifier on the breakout has a gain of 67 and more than meets the bandwidth requirements of the mic. The amplifier’s AUD output will float at one half Vcc when no sound is being picked up. The amplifier produces a peak-to-peak output of about 200mV when the microphone is held at arms length and is being talked into at normal conversational volume levels. So the AUD output can easily be connected to the ADC of a micro.

Features:

  • -3dB roll off at 100Hz and 15kHz
  • 1.5 to 3.3VDC supply voltage
  • Should comfortably output 40mW
  • SNR of -62dBA

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Customer Reviews
Average Rating (2 Reviews):  
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Rating:  
Quality mic. Tiny size is good for breadboard prototypes
Wednesday, 23 April 2014  |  Hornblower

I used it to build a sound-activated display with an arduino. The mic is easy to hook up using 3.3v, and sensitive enough to drive analogue input with detected sound (quiet) 4m away. It can also drive a standard computer audio-in input with good audio

 

2 of 2 people found this review helpful.


Rating:  
OK but quiet
Friday, 14 June 2013  |  DGHN

Works well off 3V supply but remember you need to decouple AC signal via capacitor (10 uF) and load resistor (perhaps 10 kOhm). Sounds bright enough, but volume 3-6 dB lower than a standard electret. Gain of x67 is quite meagre; I would prefer x100. Neat

 

2 of 2 people found this review helpful.

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