AD828 operational amplifier front-end amplifier board audio amplifier module single power supply SUNLEPHANT
If you feel that the default magnification is not suitable, you can change the magnification by yourself as follows:
Magnification adjustment:
R7 and R5 are amplification factor settings for resistors (default for shipping is around 5 times magnification, which can be changed according to personal needs. Resistors can be selected from 5k-47k, and the larger the resistance value, the higher the amplification factor. If using plug-in resistors, the original SMT resistor can be removed and soldered onto the solder pads reserved at both ends of the SMT position)
Board size: 33mm * 25mm
Working voltage: DC 5V-15V
Attention: The board does not come with a regulated power supply. It is best to use a regulated power supply or battery power supply during installation, otherwise there may be interference.
