Hi, I was talking about having a look at the solder area under the normal > pads (not the thermal pad) which seems a bit small for me, but perhaps > it is OK. >
Ok, It's OK on the normal pads. It might let you felt a bit small caused by body moving shift a bit and AOI accepts it. Surely we can let that pads bigger. Will do. > > You can leave the bigger thermal pad, it won't hurt though it isn't > absolutely necessary (the board does not dissipate a lot...) unless > someone connects some extension that sucks a lot of power of course :) > > This is good way for dissipating, so I'll keep it. Please remove the text "U6" from the PCB footprint, it does not belong > there. > Nice catch! > > OK, just double check that Altium is using the updated PCB footprint > from the library everywhere. By the way, I can't recompile > MilkymistOne.LibPkg, and MilkymistOne.SchLib does not match the > schematics (see the USB connector for example). It seems you have > changed the schematics symbols through another means than > MilkymistOne.SchLib and forgot to update the library. Please fix this. > You were right. > > > * Other discovery: According to p27 of LM4550B data sheet, R1 is not > > required for the LM4550B. Addition of > > this resistor will slightly increase the temperature coefficient of > > the internal bandgap reference and slightly decrease the THD > > performance, but overall performance will still be better than the > > LM4550. Or ref. to p10 of http://www.national.com/an/AN/AN-1528.pdf > > So I'll DNP R1. > > Nice catch! > Yes, we'll keep placing footprint there just DNP R1. Be the way, I keep maintaining layout notes histories here: http://en.qi-hardware.com/wiki/Milkymist_One_RC2_Layout_History#20101028 Thanks, Adam
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