Audio amp : lm4863

[kill00man]

Hi !
It has been a while since I last posted (2 years I would say ), but I'm back to finish my GCp.
I have mostly finished all my plans, but I was wondering if anybody ever tried to do a custom audio amp based on a LM4863.
It is a very tiny component (4*5*0.8 mm) with full 2.2W loudspeakers and headphone modes.
I'm actually designing a PCB for this amplifier, and I think I can take it down to 1" squared.
The problem is : I cannot do the PCB myself as the vias are 0.25mm wide and close
If anybody has experience with it, I'll gladly accept any tips.
Furthermore, who would be interested by such an amplifier ? As I cannot do it myself I'll probable ask a professional to do it, and maybe command 20 or 30 PCB at once.
For those who would be interested in such a PCB, please note that the LM4863 will probably need an external sink : has I take the PCB to a minimalistic size it will get hot (maybe 80°C ?).
Thanks

 

[Spiicyice]

Dang, that is tiny

I can't really help you, sorry. But I just wanted to ask why you would want to make an audio amp so small? I guess you just want to see how small you can make it?

 

[kill00man]

Ahah , actually I'm trying to make a very thin GCp, my aim is typically a PSP fat (just a few millimeters bigger). So in my case every millimeter I can spare count a lot. I want it 177*79*25 mm (psp fat is 170*74*24mm). It is hard to put the whole gamecube in such a small case but may be doable according to my 3D models. Anyway space is running out and the audio amp is the last piece really missing to my puzzle If I manage to do such a small amp I'm pretty sure my plans will work, but if I can't... I will certainly have to make the whole gamecube much bigger