DIY PCB Microphone Module Industrial Components 1.5~3.3VDC ADMP401 1.3x1cm 1. The breakthrough amplifier module has a gain of 67 kt oacute;ry exceeds the microphone bandwidth requirements. 2. When received, the noiseless output of the microphone module will float at the mid-volt current capacitor position. 3. When the microphone maintains a certain distance from the arm to the microphone at normal dialogue volume, the module in the amplifier will produce a peak output power of approximately 200mV. 4. The bottom port entrance can be adjusted according to the coating you make, which can reduce the extra welding. 5. This AUD output can be easily connected to the ADC of the microcomputer. Specification: Item Type: Microphone Module Material: PCB Purpose: Suitable for student oacute;w, engineer oacute;w, technician oacute;w, factories, individual DIY, enthusiast electronic and other learning operations Supply voltage: 1.5 ~ 3.3 V DC Output Power: 40mW Signal to Noise Ratio: 62dBA Size: Approx. 1.3 x 1cm / 0.5 x 0.4in Package List: 1 x Module 1 x Pin