MAX9814 Microphone Amplifier Module
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Analog electret microphone amplifier module with MAX9814 automatic gain control. Outputs an analog audio signal with DC bias suitable for direct MCU ADC sampling.
Analog electret microphone amplifier module with MAX9814 automatic gain control. Outputs an analog audio signal with DC bias suitable for direct MCU ADC sampling.
Supply voltage. Common breakouts accept 2.7V to 5.5V.
Ground connection.
Analog audio output to an MCU ADC input.
Optional gain selection input.
Optional attack/release control input for AGC behavior.
| Pin | Type | Function | Voltage |
|---|---|---|---|
| VDD | Power | Supply voltage. Common breakouts accept 2.7V to 5.5V. | 3.3 |
| GND | Ground | Ground connection. | |
| OUT | Analog | Analog audio output to an MCU ADC input. | |
| GAIN | GPIO | Optional gain selection input. | |
| AR | GPIO | Optional attack/release control input for AGC behavior. |
Supply voltage. Common breakouts accept 2.7V to 5.5V.
Ground connection.
Analog audio output to an MCU ADC input.
Optional gain selection input.
Optional attack/release control input for AGC behavior.
I2S · Analog · 3.3 – 5 V · Breakout
Adafruit/Pimoroni list the electret microphone amplifier as a MAX4466-based board with 2.4–5 V DC supply, rail-to-rail analog output and …
Module pins: VDD, GND, OUT. Schematik maps them to your board in the app.
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