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SparkFun Analog MEMS Microphone Breakout - ICS-40180
SPF原廠 Analog MEMS Microphone 麥克風模組，ICS-40180 晶片 (BOB-18011)
DESCRIPTION
The SparkFun Analog MEMS Microphone Breakout makes it easy to work with the InvenSense ICS-40180 analog microphone. This board features an OpAmp to bring the output of the microphone to a usable level, allowing you to plug directly into an ADC on a microcontroller or something like the SparkFun Spectrum Shield.
SparkFun 類比 MEMS 麥克風分線器可輕鬆與 InvenSense ICS-40180 類比麥克風搭配使用。該板具有運算放大器，可將麥克風的輸出提高到可用水平，使您可以直接插入微控制器或 SparkFun Spectrum Shield等設備上的 ADC 。
In addition to amplifying the signal, the OpAmp adds a bias voltage of 1/2 VCC. With sound sources such as a normal speaking voice a few feet away from the microphone, the AUD output signal will be at about 200mV peak-to-peak. Also note, this low profile microphone has its port on the bottom side, so the microphone can be mounted flush to the outer surface of your enclosure. This microphone is omni-directional, which means it does a good job of picking up sound sources from all directions.
除了放大訊號之外，OpAmp 還添加了 1/2 VCC 的偏壓。對於距離麥克風幾英尺遠的聲音來源（例如正常說話的聲音），AUD 輸出訊號的峰值峰值約為 200mV。另請注意，這款薄型麥克風的連接埠位於底部，因此麥克風可以與外殼的外表面齊平安裝。這款麥克風是全向的，這意味著它可以很好地拾取來自各個方向的聲源。
FEATURES
- -3dB roll off at 60Hz and 19.7kHz
- 1.5VDC to 3.6VDC supply voltage / 1.5VDC 至 3.6VDC 供電電壓
- Should comfortably output 40mW
- OPA344 provides 600Ω output impedance
- SNR of 65dBA
DOCUMENTS
相關資訊
舊款已停產
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SPF原廠 Breakout Board - ADMP401 MEMS麥克風傳感器(BOB-09868)
Breakout Board for ADMP401 MEMS Microphone (BOB-09868)
SparkFun MEMS Microphone Breakout - INMP401 (ADMP401)
簡介
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.
規格
- -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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