Product details of PAM8403 Stereo Audio Amplifier
- Advanced microdevices
- Two-channel stereo
- Dual-panel wiring
- Full of energy, good sound quality.
- 5v power supply can output 3w +3 w power
This tiny amplifier operates on 5v dc and produces an output of 6w (2×3 w). This is one of the cheapest and most powerful stereo amplifier, provided with proper wiring and power sources. The ic does not require a heat sink, so this will be perfect for your custom speaker project. This amplifier costs about 80 cents in the u.S and around 50 rupees in India. The dimension of this board is 2cm x 2cm only. Don’t short the grounds of the left and right audio outputs without using a. There will be a schematic below if you want to attain common ground for making headphone amps. Avoid providing more than 6 volts. I will definitely not recommend you to build this on a breadboard, the distortion rates are horrible. Use co-axial cables for the dc input and audio input. Failing to do so will result in horrible rf interference and bad audio output. The amplifier board comes in two versions, one with volume control and one without. There’s a schematic below to add your own volume control.