1. Home
  2. Field-Programmable Gate Arrays
  3. Virtex-4 RocketIO

Virtex-4 RocketIO

Dear all,

I'm in the early stages of designing a board with a Virtex-4 FX on it which we are planning to use for development involving RocketIO. The other guys on the team have stated that it would be "really useful" to have the clock for the RocketIO fed from a programmable oscillator. We have a Virtex-II FX development board that has a similar arrangement, using a ICS8442 low jitter LVDS frequency synthesizer. Does anyone have any suggestions or advice? Can/Should I use the same device? Is this a wild goose chase?

TIA

Peter

Reply to
Peter Mendham
Loading thread data ...

Peter

We use the ICS8442 and it has a very good jitter specification which is good for applications like RocketIO. When you are looking at this kind of specification there are not many devices as good as the ICS8442 especially if you want to use LVDS. The device is fairly layout sensative so do take care in that area of it but that's not unusual in this type of device.

John Adair Enterpoint Ltd. - Home of Broaddown4. The Ultimate Virtex-4 Development Board.

formatting link

"Peter Mendham" wrote in message news:eaq928$5j8$ snipped-for-privacy@dux.dundee.ac.uk...

Reply to
John Adair

John,

Thanks for your advice and for sharing your experience. We had a bad experience with the development board (in other respects) so I didn't want to "borrow" any parts of their design without checking other people's experiences.

Thanks

Peter

John Adair wrote:

Reply to
Peter Mendham

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.