The TDA2030 IC is a powerful audio amplifier IC able to deliver up to 20W of output power, so you can use it to run a 4Ω speaker at 12W or a 8Ω speaker at 8W.
Low frequency class AB amplifier most suited for audio amplification
An audio amplifier is nothing but one that has the capability to amplify the audio signals from any audio source such as mobile phone jack or microphone so that volume is increased when the audio is played in a speaker.
Audio amplifier circuits can also be made using simple op-amps, but if you need higher volume that is loud enough for a room then this power audio amplifier is will be the best choice. This IC can deliver up to 20W of output power, so you can run a 4Ω speaker at 12W or a 8Ω speaker at 8W.
Pin Configuration
Pin 1(Non – Inverting Input) : Non inverting end (+) of Amplifier
Pin 2(Inverting Input) : Inverting end (-) of Amplifier
Pin 3(Ground) : Connect to the ground of the circuit
Pin 4(Output) : This pin outputs the amplified signal
Pin 5(Supply Voltage) : Supply voltage, Minimum 6V and Maximum 36V