Electronics Forum / CAD / February 2005

I am searching for spice models for MRF545 and MRF544.
Seems they are at least in the intusoft RF devices library.
But I do not have ICAP (I use Topspice).
Anyone have these models and could give them to me?

I'm setting up some electronics capability at my new job, and wouldn't
mind avoiding the hefty price tags associated with OrCad and PADS, esp
as we don't look to be doing much board development.  The work will be
mostly low-frequency analog, and I don't anticipate ever needing an

I'm about to release for manufacturing a 4 layer PCB
1. Top Signal
2. Ground
3. Power

I am a Computer Engineering student. As part of course work I have to
participate in several electronics lab which deals with analog and
digital circuitry. Now I need a simulation environment where I can
simulate the lab experiments

I visited the USPTO website today (using Mozilla Firefox) and got a
message that Quicktime Plug-In installation was required.
Quicktime is already installed on my machine, but I clicked the
install-plug-in box anyway.  But it won't install, getting a "manual

How do I easily get a gerber (or HPGL) plot into word?
I am away from the office and have no Viewmate to hand - are there any
freebies to download to do the task?
Must be finished by monday.

My brain is running on slow this A.M.
I can't remember how to calculate time delay versus frequency, given
the Laplace transform.
Please refresh my brain cells.

Je suis à la recherche des schema d'un ecran IIYAMA MASTER PRO 502.
Le SAV refuse de me les transmettre; Pouvez vous m'aider ?

I have to make jumper pads for 20 Ga wire jumpers. The spec for the
wire is 32 mils ( .812mm). Should I just go one size larger (18 Ga..
40 mil) or larger?
I appreciate everyone's advice.

I need a power-on reset that lasts around 5ms.
Process is CMOS
1.65V < VDD < 5.5V
Components available besides CMOS:

Is there a document referencing standards like 1206, 0805, etc. for
component land dimensions?
Also, how can I find these footprints (ie 1206) in Protel?
Thanks one and all for everyone's help.

Is there any way that I can locate a footprint for a .156" SIP header
in Protel 2004 to base various headers I have to create?
I tried searching 156 but came up with nothing......
Thanks

I have some SPICE code that runs perfectly in HSPICE but will not run
in PSPICE due to issues with "subcircuit expansion."  If there's any
experts out there who could take a quick look at this and let me know
what the issue might be I'd appreciate it.

Could anyone let me know a valid syntax using "REPEAT" keyword to
multiply a Bus in a multi channel schematic design (PROTEL 2004)?
A "REPEAT (BUS [1..4])" Entry Sheet in Parent will not make
vertical connection with a BUS[1..4] Port on Child Sheet. It generates

This is a digital device clearly but I want to run a simulation with it
as an analog device.  It is often used as an AC amplifier (poor choice
you will agree) and other analog circuits.  Is there such a analog model
available for LTspice or Pspice (the cheap version)???