Thank you guys for everything you have done!
I finally made the amp and it sounds amazing, outputting exactly what I designed it for.
LM1875 20W into 8ohms
Here's the schematic and PCB.
Hint: the PCB was my first time and I already know how to improve on it (Thicker power rails for sure), but noneless if you guys have anything inputs I want to hear them all as I wouldn't be here if it wasnt for this community.
I finally made the amp and it sounds amazing, outputting exactly what I designed it for.
LM1875 20W into 8ohms
Here's the schematic and PCB.
Hint: the PCB was my first time and I already know how to improve on it (Thicker power rails for sure), but noneless if you guys have anything inputs I want to hear them all as I wouldn't be here if it wasnt for this community.
It helps for pin #1 of connectors to have a square pad.
Same for the positive terminal of a polarized capacitor.
Place the + label outside of the capacitor outline for easier checking
when finished.
Yeah you're right for sure, I wanna do many more different things. Forgot to add a diode 🙁
You'll want the signal ground and power ground to join at the speaker output ground connection. It looks like they join under the chip right now. I'm not sure what you're trying to accomplish with your current split in the plane.
You can read my justification here: LM3886 chip amp grounding.
Tom
You can read my justification here: LM3886 chip amp grounding.
Tom
Ahhh, I was close. Sorry about that.
I was trying to separate the signal ground and power signal.
Should the chip ground be at the power ground then?
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