(Almost) cost no object class d TPA3255 design, help

[avelasco]

Hi, I bought it last December 2021, was the last one at mouser
The TPA3255DDV is expected on 8/24/2022 if you want to pre order

This project is a step by step process
2 months to buy all the parts
4 months to design and improve the PCB

This is the latest advance

 

[shadders]

Hi, I bought it last December 2021, was the last one at mouser
The TPA3255DDV is expected on 8/24/2022 if you want to pre order

This project is a step by step process
2 months to buy all the parts
4 months to design and improve the PCB

This is the latest advance

Hi,
Thanks. When i searched a few days ago, i must have missed this date. Most i could see were 2024.
Regards,
Shadders.

 

[avelasco]

I just started to test the SE to DIF section, the timer section, and power section, it appears that everything is ok
now I will solder the TPS3255 Chip

 

[avelasco]

Hi all

The board is complete and I just finish testing the power supply, Now I have all the parts to do some integration testing

In order to test the amp, I ordered a Motu m4 and a Akitika 1khz sine wave generator, the kit is easy to assemble and I the results are excellent, I tested de sine wave generator and the Motu, the THD is 0.00028% and the THD+N is 0.00073%

If I test only the Motu in a close loop the results are THD 0.00030% and THD+N 0.00092%, this device is excellent to