Wanted single sided PCB layout

sivan_and · 26th January 2006, 01:54 PM

Wanted single sided PCB layout of the following Chip amps...
LM3886 bridge parallel mono. 200watts.
LM4830
OPA549T
LM4780 stereo and bridge.

Any Links will be appreciated...Me too lazy to search.
Attemting to etch the pcb's myself with the help of screen printer
...THX in adv...

pinkmouse · 26th January 2006, 02:25 PM

The LM4780 doesn't work that well single sided, you have to make too many compromises on the layout. I spent a good few hours trying. I'll see if I can find my old OPA549 layout, but it was a hard drive crash ago, and I'm not sure if I backed it up...

sivan_and · 26th January 2006, 02:27 PM

want to make some chip amps this week end.........

steenoe · 26th January 2006, 02:52 PM

For the OPA549, take a look here:
http://www.diyaudio.com/forums/showt...875#post552875

Steen

sivan_and · 26th January 2006, 03:48 PM

Sorry if am n asking too much.....A layout in pdf will be fine..
thx...steenoe

testlab · 26th January 2006, 09:51 PM

Download the freeware version of Eagle EE. You should be able to create a board large enough to accomodate them. I believe that a footprint for the LM3886 is in the library as well.

BlackMTX · 26th January 2006, 10:36 PM

Here is my LM4780 bridge parallel single sided version...

26th January 2006, 01:54 PM	#1
sivan_and diyAudio Member Join Date: Dec 2004 Location: Dxb / India	Wanted single sided PCB layout Wanted single sided PCB layout of the following Chip amps... LM3886 bridge parallel mono. 200watts. LM4830 OPA549T LM4780 stereo and bridge. Any Links will be appreciated...Me too lazy to search. Attemting to etch the pcb's myself with the help of screen printer ...THX in adv... __________________ SivanandBalan

26th January 2006, 02:25 PM	#2
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	The LM4780 doesn't work that well single sided, you have to make too many compromises on the layout. I spent a good few hours trying. I'll see if I can find my old OPA549 layout, but it was a hard drive crash ago, and I'm not sure if I backed it up... __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

26th January 2006, 02:27 PM	#3
sivan_and diyAudio Member Join Date: Dec 2004 Location: Dxb / India	want to make some chip amps this week end......... __________________ SivanandBalan

26th January 2006, 03:48 PM	#5
sivan_and diyAudio Member Join Date: Dec 2004 Location: Dxb / India	Sorry if am n asking too much.....A layout in pdf will be fine.. thx...steenoe __________________ SivanandBalan

26th January 2006, 09:51 PM	#6
testlab diyAudio Member Join Date: Dec 2005 Location: Grand Rapids MI	Download the freeware version of Eagle EE. You should be able to create a board large enough to accomodate them. I believe that a footprint for the LM3886 is in the library as well. __________________ It's not whether you win or lose, it's how you lay the blame.


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26th January 2006, 02:52 PM	#4
steenoe diyAudio Member Join Date: Mar 2004	For the OPA549, take a look here: http://www.diyaudio.com/forums/showt...875#post552875 Steen

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