I am planning to build a component to VGA converter following the LMH1251 evaluation board: http://www.national.com/an/AN/AN-1836.pdf

I have just received the National ICs and soldered them to the TSSOP/SSOP to DIP boards. I was planning to test this out on a breadboard as I always do, but am now thinking it might not work with such high frequencies as in component and VGA signals. Do you think I will be wasting my time? Are the 0.64mm square pins that come with it going to be alright? Maybe I am just better off to start with a protoboard... will that even work?

 

Or should I go straight to attempting my first PCB layout?

 

Hello,

When you look at the datasheet of the LMH, there will be signals present upto 400 MHz.
http://www.national.com/profile/snip.cgi/openDS=LMH1251
That will never work on a breadboard.
I would go directly to a PCB design as like in the link you gave.

Bertus

 

Do you think this could be done by soldering to a proto board? I'd like to have some confidence in getting this going before trying to do the PCB layout and manufacturing of it.

 

Hello,

You could also take a look at manhattan style prototyping.
http://forum.allaboutcircuits.com/sh...9&postcount=30

Bertus