TPA3122

aditya · 08:07 PM

i have made this pcb layout for TPA3122 would like to know how it is,, i know its not smd but some reasons are the reasons for me to use axial components

aditya · 10th April 2011, 08:08 PM

yes the coils are from coilcraft

killerbobjr · 10th April 2011, 10:23 PM

There's a number of problems I see right away. First of all /SD and MUTE are not connected to anything. You also have ground traces wandering around instead of having direct paths to pins. Your PVCCR/PGRNDR power cap is hanging off the board. I'm assuming the two caps from AVCC1/AVCC2 to ground are a mono cap and a power cap, not two mono caps.

Try to make your paths as direct as possible. Don't have your ground traces circle all about. Start with a ground plane, then subtract from it for the other traces. Work with a netlist -- don't try to do things by sight (especially important for beginners).

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10th April 2011, 08:08 PM	#2
aditya diyAudio Member Join Date: Mar 2010 Location: Bombay, India	yes the coils are from coilcraft

10th April 2011, 10:23 PM	#3
killerbobjr diyAudio Member Join Date: Sep 2004 Location: killer	There's a number of problems I see right away. First of all /SD and MUTE are not connected to anything. You also have ground traces wandering around instead of having direct paths to pins. Your PVCCR/PGRNDR power cap is hanging off the board. I'm assuming the two caps from AVCC1/AVCC2 to ground are a mono cap and a power cap, not two mono caps. Try to make your paths as direct as possible. Don't have your ground traces circle all about. Start with a ground plane, then subtract from it for the other traces. Work with a netlist -- don't try to do things by sight (especially important for beginners).

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