Lm386 Ic Pin Diagram. A suitable resistor should be used for proper working of mic you can look up to datasheet for the value or use a variable resistor and set the proper value. Pins 1 and 8 are gain control pins.
Lm386 pin diagram consists of 8 pins where each pin has some function such as lm386 pin diagram pin 2 and 3 are the sound input pins and by using these pins you can place the sound and you can amplify. The following image shows the pinout diagram of the ic lm386. From the pin diagram it is clear that lm386 is a simple amplifier ic with possibly minimum external connections.
Hi there today we will be learning how to make an audio amplifier using smd version of lm386.
The voltage gain of this amplifier can be adjusted to 20 and the voltage gain will be enhanced to 200 by employing external components like resistors as well as capacitors among the pins 1 8. The most common package for lm386 is an 8 pin dip. This audio signal can be from a microphone or even from a 3 5mm jack. A very basic commonly used lm386 circuit is shown below.
