A Journey to Class D Audio

Since I was introduced to Class D amplifiers, I built several low power amps based on TI TPA3122D2 and TPA3123. I’m very satisfied with the results, one is used on our desktop PC and one on my brother’s motorcycle. There was a group buy at electronicslab.ph/forum of the DR100W Kit from 1DiyCentre and there are two excess kits, since my LM1875 was put to rest a few days back, I decided to take one of the two.

Here is my Project Log during the Assembly of the Kit

The PCB and Components

The surface mount components was presoldered on the board

The TDA8920BTH is in HSOP24 package, the pitch is not so tight still pretty easy to solder.

All components soldered except for potentiometer since I will use digital controls for these one.

Finally the heatsink installed

Testing and first impression of this amp will follow