MAX9814 Electret Microphone Amplifier Board with AGC Function - DC 3.6V-12V - 30mm x 25mm

• With AGC function, for hearing aids, conference microphone, loudspeaker, and other devices.

• The output can directly drive an ordinary 32 European headphones(if you need more output, it is necessary at the output plus a preamp or amplifier)(suitable for single 18650 battery or battery-powered mobile phone use)

• Supply voltage: 3V-12V(3V-4.2V connect VCC,4.3V-12V connect 2pin socket) AGC switch:

• Plugin supporting the shorting cap AGC function OFF, no AGC insert shorting cap open.

Specification:

• Supply voltage: 3.6V-12V, Low-Power Shutdown Mode, Size: 30mm*25mm

• AGC switch: Plugin supporting the shorting cap, Jumper ON: AGC function ON, Jumper OFF: AGC function OFF

• Built-in 2V low-noise microphone bias

• Gain: 3 gain setting (40dB, 50dB, 60dB)

• Operating Temperature:-30 to 85 ℃