LM3875 PCB Footprint

Doovieman · 9th June 2004, 07:15 AM

Hi-
I'm quite new to OrCad (just got a copy today) and am wondering if anyone has made a footprint for the LM3875 or could instruct with suggestions as to where to download such footprints. If I have to just make my own footprint, any suggestions would also be nice. All help would be greatly appreciated. Thanks,

Doovieman

peranders · 9th June 2004, 07:39 AM

It's quite easy to do this by yourself.

First line of pads
X= -268, -134, 0, 134, 268, Y = 0

Second line

X= -335, -201, -67, 67, 201, 335, Y= -200

Pads, 95, 75, 75, 90 hole 1.1 mm
Compmask, complayer, soldlayer, soldmask

The pads are made for plated through holes

Body
-393,7; -11,85
-393,7; 163,35
393,70; 165,35
393,70; -11,85

All units in MIL.

Just take a look at my gainclone if you want to see how it looks. Download the pdf's.

9th June 2004, 07:15 AM	#1
Doovieman diyAudio Member Join Date: Jul 2003 Location: Berkeley, California	LM3875 PCB Footprint Hi- I'm quite new to OrCad (just got a copy today) and am wondering if anyone has made a footprint for the LM3875 or could instruct with suggestions as to where to download such footprints. If I have to just make my own footprint, any suggestions would also be nice. All help would be greatly appreciated. Thanks, Doovieman

9th June 2004, 07:39 AM	#2
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	It's quite easy to do this by yourself. First line of pads X= -268, -134, 0, 134, 268, Y = 0 Second line X= -335, -201, -67, 67, 201, 335, Y= -200 Pads, 95, 75, 75, 90 hole 1.1 mm Compmask, complayer, soldlayer, soldmask The pads are made for plated through holes Body -393,7; -11,85 -393,7; 163,35 393,70; 165,35 393,70; -11,85 All units in MIL. Just take a look at my gainclone if you want to see how it looks. Download the pdf's. __________________ /Per-Anders (my first name) or P-A as my friends call me

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
pc mount phono connectors - bnc footprint	danville	Parts	3	13th January 2009 11:43 PM
First time horn help.. small footprint	Matt@Nearfield	Multi-Way	2	17th May 2005 02:55 PM
Eagle footprint for 16mm dual pot	demons_wing	Chip Amps	13	12th March 2005 12:45 PM
LM4780 Footprint..	Paprika	Chip Amps	2	12th April 2004 07:17 PM
OPA549 footprint for ExpressPCB	sobazz	Chip Amps	1	31st March 2004 03:07 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)