this is a Quick tutorial video where I have made everything.
Step 1: Pin Numbering
there are 14 pins in the ic. There are 1 to 14 left to right.
Step 2: GND Connection
Connect the pin 2,3,8,14 as the GND.
Step 3: Connect Capacitor
Connect the 1uf 63v capacitor with the 4440 IC. Connect the +ve Leg of the capacitor with the 4440 IC 's 1st pin.
Step 4: Speaker Connection
Connect thre speaker terminals with the pin 10 and 12
Step 5: Power Input
Pin 11 will be the 12v power input and for the -ve connection use the GND. GND and 12v are used for input power.
Step 6: 3.5 MM Jack
Step 7: Audio Jack Connection
The golden wire will be connected o the GND.
Capacitor -ve will be connected with the 3.5mm jack's Blue wire.
Step 8: 12v Battery
I am using the 12v Battery for the power. You can also Use 12V wall adaptor
Step 9: Lets Test
Connect the headphone jack with Your phone and plug and play.
Step 10: Heat Distribution
When the volume of the amplifier is set to max then IC will be too hot to touch so, I suggest you use a proper Heatsink..