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AN3631

Title:
Low-BOM Microphone Interface Using the Analog Signal Conditioning (OPAMP) Peripheral
Name:
AN3631
Date:
09/11/2020
Author:
Lloyd D. Clark
Description:
This application note describes how to interface an electret microphone with a microcontroller (MCU) using the Analog Signal Conditioning (OPAMP) peripheral. In addition to the microphone, only one resistor and one capacitor are required. The OPAMP peripheral also provides the ability to adjust the gain under firmware control.
Keywords:
microphone, microphone amplifier, adjustable gain, op amp, operational amplifier, AVR, AVR DB, AVR128DB
 
Application Notes & Source Code
 Last Updated
Size
 
  AN3631
  09/11/2020
  187KB
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