Description
MEMS Microphone. The built-in microphone is an ADMP401, a low-power omnidirectional microphone with an analog output. The AUD output of the amplifier floats at half a 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 arm's length at normal conversational volume. So the AUD output can easily be connected to the ADC of a microphone.
MEMS Microphone Specifications:
– Mic: ADMP401
– Voltage: 5v
– Current: 250 μ
– High Signal-to-Noise Ratio (“SNR”):62 dBA
– Sensitivity of about -42 dBV
– Flat frequency response: 100 Hz to 15 kHz
– Maximum acoustic input: 120 dB
- PTM Wiki
Reviews
There are no reviews yet.