Electronics Computer-Aided Design

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powerPC simulation

Hello, am New to PCB board design cycle. Working on circuit having powerPC interfaced with nand flash,FPGA,DDR and ethe...
3 comments posted 19yrs
posted by santoshkadam
3 comments posted 19yrs posted by santoshkadam

Adjustable Constant Current Drive

Hi I'm trying to design an adjustable constant current drive to supply a current of 250mA. I've been trying to use OP a...
5 comments posted 19yrs
posted by graeme.cunningham
5 comments posted 19yrs posted by graeme.cunningham

50 ohm std o/p IC

I have a TM4 GPS unit gives o/p as 10 MHz sine wave, 1PPS , 1PPM signals (100 ms on time squre wave)... I would like to...
0 comments posted 19yrs
posted by nds.pune
0 comments posted 19yrs posted by nds.pune

pcb vendors

I am looking for new pcb vendors along the lines of Sanmina. I am pretty new at researching this industry. Can anyone su...
4 comments posted 19yrs
posted by koebrich
4 comments posted 19yrs posted by koebrich

OT: Eudora Pro v7

Anyone using Eudora pro v7? Due to some changes in ISP security procedures I finally have to give up my venerable and c...
10 comments posted 19yrs
posted by To-Email-Use-The-Envelope-Icon
10 comments posted 19yrs posted by To-Email-Use-The-Envelope-Icon

PROTEL 99SE

Can someone tell me how you unroute a PCB? Thanks Peter
13 comments posted 19yrs
posted by martech
13 comments posted 19yrs posted by martech

PSpice Transformers

Can the PSpice transformer be used in both directions? That is, can the secondary be used as the "primary"? I may have a...
1 comments posted 19yrs
posted by bob
1 comments posted 19yrs posted by bob

LM833 bandwidth problem

I'm simulating an LM833 in inverting mode, very simple. just the two resistors. And according to all datasheets the GBP...
3 comments posted 19yrs
posted by toto.mongui
3 comments posted 19yrs posted by toto.mongui

PADS vs OrCAD

Excuse the longwindedness... I've been using PADS PCB (2004, 2005 v2) for just over a year and can succesfully complete...
1 comments posted 19yrs
posted by smilo
1 comments posted 19yrs posted by smilo

anybody use "diptrace"

Does anyone here have any experience with a program called "diptrace"? I'd be interested in any comments regarding the...
2 comments posted 19yrs
posted by eric
2 comments posted 19yrs posted by eric

OrCAD 10.5 to 15.7... huh?

Anyone else think it's a little odd that the next upgrade of OrCAD is going to be 15.7 despite the current version being...
1 comments posted 19yrs
posted by JKolstad71HatesSpam
1 comments posted 19yrs posted by JKolstad71HatesSpam

Partial Route that I can't find in OrCAD

I've looked all over the layout (and I was sure I got everything when I was doing it) but when I run the statistics spr...
6 comments posted 19yrs
posted by xxragexx
6 comments posted 19yrs posted by xxragexx