Easy and work project

TDA 7056 A is an audio power amplifier IC that has 5 watts output power with 8 ohms speaker and 3 watts with 16 ohms speaker. The IC is simple to wiring and needs only 6 external components to make the amplifier working. TDA 7056A working with a power supply between 4.5 - 18 volts so the IC can use a battery as power supply. if you use more than 9 volts, you need to attach small heat sink to the IC. TDA7056A has a built-in DC volume control so you can control the gain of the amplifier by changing voltage value at DC volume control pin by use a potentiometer. DC volume control makes you connect the audio signal directly to the amplifier input so it makes a sound more transparent and cleaner than a normal amplifier.  The IC has a short circuit protection, over temperature protection, No switch-on/off clicks, ESD protected on all pins, Mute mode (The IC switch mode when DC volume control pin voltage lower than 0.3 volts)  TDA 7056A has a very wide audio bandwidth 20 Hz to 300