Hi Y'all
My goal in this thread is to make a PBTL board with the TPA3255 chip. If possible, i want to add the feature of switching to a BTL stereo setup if needed.
These PCBS are meant to being built in speakers, and on a budget. I therefore want to try to save where it make sense, yet also make them sound as nice as possible.
As it is my first time making my own pcb and amplifier, I am going to follow the reference schematic and parts. That is unless you guys have better suggestions.
Here is a list of the few parts i changed from the reference part list:
Part L2, L3, L4, L5 changed from MA5172-AE to ER2915-103 KL. - I really want to save money here if possible. I hope for feedback for the chosen part. I figure that the new part is not the most ideal for soldering on the board, but it is at least a lot cheaper than a lot of the other Coilcraft products used on other TPA3255 amps.
Part U5 and U6 changed from NE5532ADR to LM4562MAX/NOPB. - I read that the LM4562 was significantly better than the NE5532, but what do I know. Please leave suggestions. This is after all on somewhat of a budget and there is no reason to spend the money dumb.
I've also considered using Wima mks4 1uf as i've head good things of them.
Other parts that have been changed, has only been because they aren't on mouser anymore. I've found values that match the reference parts.
Please let me know if there is any upgrades to do on the schematic, with a few changes of values etc. I was thinking of adding PFFP, but I don't know if it is necessarily better.
My goal in this thread is to make a PBTL board with the TPA3255 chip. If possible, i want to add the feature of switching to a BTL stereo setup if needed.
These PCBS are meant to being built in speakers, and on a budget. I therefore want to try to save where it make sense, yet also make them sound as nice as possible.
As it is my first time making my own pcb and amplifier, I am going to follow the reference schematic and parts. That is unless you guys have better suggestions.
Here is a list of the few parts i changed from the reference part list:
Part L2, L3, L4, L5 changed from MA5172-AE to ER2915-103 KL. - I really want to save money here if possible. I hope for feedback for the chosen part. I figure that the new part is not the most ideal for soldering on the board, but it is at least a lot cheaper than a lot of the other Coilcraft products used on other TPA3255 amps.
Part U5 and U6 changed from NE5532ADR to LM4562MAX/NOPB. - I read that the LM4562 was significantly better than the NE5532, but what do I know. Please leave suggestions. This is after all on somewhat of a budget and there is no reason to spend the money dumb.
I've also considered using Wima mks4 1uf as i've head good things of them.
Other parts that have been changed, has only been because they aren't on mouser anymore. I've found values that match the reference parts.
Please let me know if there is any upgrades to do on the schematic, with a few changes of values etc. I was thinking of adding PFFP, but I don't know if it is necessarily better.
