LA4440 IC Audio Amplifier
Hii friend,
Today I am going to make an audio amplifier using LA4440 IC.This amplifier circuit is very simple and we require only one component.
Let's get started,
Take All Materials As Shown Below -
Materials required -
(1.) IC - LA4440 x1
(2.) aux cable x1
(3.) Speaker - 20W x1
(4.) Adapter - 12V
(5.) Jumper wire
(6.) Capacitor - 25V 100uf x1
LA4440 IC
This is an amplifier IC.This IC contain 14 pins.
We can count its pins from front side as shown in the picture.
Connect Capacitor
Firstly we have to connect a capacitor.
Solder +ve pin of capacitor to the pin-1 of IC as solder in the picture.
Next Connect Jumper Wire
Next we have to connect jumper wire.
Solder jumper wire to pin-2, pin-3, pin-8 and pin-14 of the IC as solder in the picture.
GND pin - pin-2, pin-3, pin-8 and pin-14.
Connect Aux Cable Wire
Now connect aux cable wire to the circuit.
Connect Left/Right wire of aux cable to the -ve pin of capacitor and
Connect -ve wire of aux cable to the GND wire of IC which is pin-2, pin-3, pin-8 and pin-14 as you can see in the picture.
Connect Speaker
Now we have to connect speaker wire to the circuit,
Solder +ve wire of speaker to pin-10 and
-ve wire of speker to pin-12 of IC.
Now Connect Power Supply Wire
Now we have to connect power supply wire to the circuit.
NOTE : Give 12V 1-3A DC power supply to the circuit.
# Connect +ve wire of power supply to pin-11 of IC and
# -ve wire of power supply to GND wire as solder in the picture.
HOW TO USE IT -
Give power supply to the circuit and plug aux cable to mobile phone/laptop/tab......
Enjoy the music
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Thank you