Feedback on my small 12v classD amp - diyAudio
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Old Today, 02:40 PM   #1
diyAudio Member
 
Join Date: May 2013
Default Feedback on my small 12v classD amp

Hi,

Can someone with more experience than me criticize my lay out skills

It's a 12V class D amplifier based on the MAX9744. Dimensions are 29x25.5mm

Main questions:
-Can audio gnd be referenced to the gnd plane? If not; where do I connect it to.
-Do all pins with the same function have to be connected? The two pvdd pins at the bottom of the IC cause a big cut in the gnd plane
-How do your normally connect all the via's to a heatsink, like on the 1117 regulator on my board. Is there a better way than how I did it?

And of course the things I don't see / understand yet.

Click the image to open in full size.
I noticed that the bias cap wasn't connected after I routed the whole board. First I wanted some input on the general layout before doing it all again.
Click the image to open in full size.
Click the image to open in full size.

Thanks!

Last edited by lutkeveld; Today at 02:58 PM.
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