LM386 basically a low voltage audio power amplifier. It is suitable for battery-powered devices such as radios, guitar amplifiers, and hobby electronics projects. The IC consists of an 8 pin dual in-line package (DIP-8) and can output 0.25 to 1 watts of power, depending on the model, using a 9-volt power supply.
Now we are going to build a Simple Audio Amplifier.
- Capacitor 220 uF
- Resistor 10k
- Audio Jack
- 9V battery
- pin 1 => No connection
- pin 2 => 9v Ground (-ve)
- pin 3 => Resistor 10k
- pin 4 => 9v Ground (-ve)
- pin 5 => Capacitor +ve Terminal
- pin 6 => 9v battery +ve
- pin 7 => No connection
- pin 8 => No connection
- LM386 pin 5 => Capacitor +ve Terminal
- Negative Terminals => Speaker
- LM386 pin 3 => Resistor 10k
- Resistor => Audio IN
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