Microphone Amplifier Board, Mic, LM4864, Up to 725mW, Gain Pot

Description

Microphone Amplifier Board, Mic, LM4864, Up to 725mW, Gain Pot
MIKROE-333
Built-in microphone
LM4864 Boomer audio power amplifier
300 to 725 mW output power, depending on power supply and loudspeaker impedance
3.3V to 5V power supply range
Supports loudspeakers with impedance of 4, 8 or 16 Ohms
Easy connectivity using screw terminals
The Microphone AMP Board features a microphone connected to an LM4864 power amplifier designed for use in low-voltage consumer applications. The gain is set internally to 20, but a potentiometer and capacitor on the board allow you to increase the gain up to 200.
Microphone Amplifier Board Resources
Microphone AMP Board User Manual
(schematic has an incorrect label on the chip, but the pinout is correct for the LM4864)
Texas Instruments LM4864 Page
with datasheet and other documentation