Lm386 Amplifier Circuit. In the circuit diagram of lm386 when the gain setting pins are open then the gain will be 20 and it is set up by 1 35kw internal resistances or else in between the gain setting pins when a capacitor is placed this bypasses the internal resistances and the gain reaches to 200. The design of lm386 audio amplifier circuit is very simple.
You can also check the lm386 datasheet here. Lm386 is basically an opamp. Lm386 based audio amplifier circuit simple mic audio amplifier can amplify sound that is given from microphone.
If you are a hobbyist then you should definitely try this simple circuit.
First connect the power supply pins pins 6 and 4 to 12v and ground respectively. That amplification is what s known as the voltage gain. In the circuit diagram of lm386 when the gain setting pins are open then the gain will be 20 and it is set up by 1 35kw internal resistances or else in between the gain setting pins when a capacitor is placed this bypasses the internal resistances and the gain reaches to 200. Building a basic functional circuit for the lm386 is dead easy.
