Audio Amplifier | TDA2050

A quick update on the audio amplifiers. This is a higher power IC, TDA2050. The data sheet claims that it can do up to 32W. I simply put up a application circuit from the datasheet. I put it into a temporary PCB layout that I designed. I've plans to design a complete 5.1 channel amp, more updates on it later. The circuit produces awesome amount of sound, enough for your neighbors to complain. And I was only running a small speaker that I had designed.

Here is a video of it working, [My room's a mess :(]

Check the same on youtube for better quality

I'll update with the circuit layout very soon

Audio Amplifier | LM386

I managed to create a basic audio amplifier using the IC LM386. This post is just a walk through to the creation. LM386 is a very good audio amp, but sometimes it tends to oscillate at low frequencies hence producing a lot of unwanted noise. The basic circuit is

Put this on a bread board. And connect a 3.5mm jack to the other end to input Vin. Use a coupling capacitor of possibly 10uF. The 10K Pot is to control the intensity. Use Vcc of around 9V. I've used a 8ohm speaker.

There is one more mode according to the datasheet. This is supposed to provide a gain of 200.

Sometimes when the gain is more the output is distorted. Be sure to keep that in mind. It is not that powerful. I've always had a hard time handling it, lot of distortions and noise. Check out other modes, experiment, enjoy.