1552 – AUDIO STEREO AMPLIFIER 2X2.1W CLASS D TPA2012

Description

This incredibly small stereo amplifier is surprisingly powerful able to deliver 2 x 2.1W channels into 4 ohm impedance speakers (@ 10% THD). Inside the miniature chip is a class D controller able to run from 2.7V5.5VDC. Since the amp is a class D it’s incredibly efficient (89% efficient when driving an 8 speaker at 1.5 Watt) making it perfect for portable and batterypowered projects. It has built in thermal and overcurrent protection but we could barely tell it got hot. This board is a welcome upgrade to basic LM386 amps!

The inputs of the amplifier go through 1.0uF capacitors so they are fully ‘differential’ if you don’t have differential outputs simply tie the R and L to ground. The outputs are Bridge Tied that means they connect directly to the outputs no connection to ground. The output is a ~300KHz square wave PWM that is then ‘averaged out’ by the speaker coil the high frequencies are not heard. All the above means that you can’t connect the output into another amplifier it should drive the speakers directly.

Comes with a fully assembled and tested breakout board with 1.0uF input capacitors. We also include a dual mini DIP switch for setting the amplifier gain on the fly 3.5mm screwterminal blocks so you can easily attach/detach your speakers and some header in case you want to plug it into a breadboard. You will be ready to rock in 15 minutes! Speakers are not included use any 4 ohm or 8 ohm impedance speakers.