MEMS Microphone Breakout – INMP401 (ADMP401) 數位麥克風感測模組 SparkFun 進口

商品說明

MEMS Microphone Breakout – INMP401 (ADMP401) 數位麥克風感測模組 SparkFun 進口

SparkFun MEMS數位麥克風轉接板 -INMP401 微型麥克風擴展板板採用 ADMP401 MEMS 麥克風，告別又大又醜的麥克風。微型麥克風擴展板是偵測聲音專案最佳選擇。

SparkFun MEMS Microphone Breakout – INMP401 (ADMP401)

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

Documents:

• Schematic
• Eagle Files
• Hookup Guide
• Datasheet (ADMP401)
• GitHub