How to Wire an LM386 Audio Amplifier
LM386 is a popular audio amplifier integrated circuit known for its simplicity and reliability. It can be used in various audio applications such as portable speakers, guitar amplifiers, intercom systems, and more. In this article, we will guide you on how to wire an LM386 audio amplifier for your project.
Components Needed:
- LM386 IC
- 8-pin DIP socket
- 10uF capacitor
- 0.1uF capacitor
- 220uF capacitor
- 10 ohm resistor
- 100 ohm resistor
- Speaker
- Power source (battery or DC adapter)
Wiring Diagram:
Follow the wiring diagram below to wire the LM386 audio amplifier:
Step-by-Step Guide:
Here is a step-by-step guide to wire the LM386 audio amplifier:
- Step 1: Insert the LM386 IC into the 8-pin DIP socket.
- Step 2: Connect pin 1 of the LM386 to ground.
- Step 3: Connect pin 2 of the LM386 to the input audio signal.
- Step 4: Connect pin 3 of the LM386 to the output audio signal.
- Step 5: Connect pin 4 and pin 6 of the LM386 together and to the positive terminal of the power source.
- Step 6: Connect pin 6 of the LM386 to the positive terminal of the speaker.
- Step 7: Connect pin 5 of the LM386 to the negative terminal of the power source.
- Step 8: Connect the 10uF capacitor between pins 1 and 8 of the LM386.
- Step 9: Connect the 0.1uF capacitor between pins 5 and 7 of the LM386.
- Step 10: Connect the 220uF capacitor between pins 5 and 6 of the LM386.
- Step 11: Connect the 10 ohm resistor in series with the speaker.
- Step 12: Connect the 100 ohm resistor in parallel with the speaker.
Testing the Circuit:
Once you have wired the LM386 audio amplifier, it’s time to test the circuit. Connect the power source and input audio signal, then power on the amplifier. You should hear the audio output from the speaker. If there are any issues, double-check the wiring and components.
With this guide, you can easily wire an LM386 audio amplifier for your projects. Experiment with different components and configurations to achieve the desired audio output. Have fun exploring the world of audio amplification with the LM386 IC!
Was this helpful?
0 / 0