Board to board connector

[fagiano]

Hi, I have too choose a connector to link 2 boards together, the signals will be 3.3V logic at no more than 150/200Mhz, is it ok to just use an 2.54mm IDC connector or I should be looking at something more exotic? Are ribbon cables an ok at this speeds?

thank you in advance

ciao
Alberto

[marshallh]

How many signals? Single ended or diff pairs? How long is the distance, can you make them overlap within 2cm?
Ye olde pin header cables are not really a good fit at this speed.
Also important are return paths (every other conductor is ground e.g. ATA-100) and termination.

[fagiano]

I have ~30 signals plus power, no differential pairs. I can skip the ribbon cable and do a board to board connection. I was just wondering if a cable would work. It's a little bit easier to move it around the bench but is not essential if it ends up being too much trouble.

thank you
Alberto

[tszaboo]

Samtec http://www.samtec.com/ has detailed specifications and measurements in the GHZ+ region for most connectors. Read a bit. I would suggest to use a LOT of GND pins.