XO for Xilinx V2Pro MGTs

Does anyone have experience using any oscillators for the MGTs on the V2Pro other than the two listed in Xilinx's app note (Epson and Pletronics)?

We've always used the Epson part (100, 125, or 156.25 MHz) in the past but now need an extended temp version which they don't have, and unfortunately the Pletronics part, which does have an extended temp version, has a 3.3V supply instead of the 2.5 supply like the Epson.

Ideally, we want a drop in for the Epson, which is a 6 pin 5x7 package, pin

1 enable, 2.5V supply. Issues or concern are termination and jitter.

------------ Ron Huizen BittWare

Reply to
Ron Huizen
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Ron,

Look for an LVDS output oscillator.

Then the matter of supply voltage does not matter.

LVDS is LVDS: does not matter if it runs off of 2.5V, or 3.3V.

Aust> Does anyone have experience using any oscillators for the MGTs on the V2Pro

Reply to
Austin Lesea

Austin,

Sorry if I didn't make it clear - the board already exists and provides a

2.5V supply to the XO, so while LVDS is LVDS, it does matter to us what the supply voltage is. We could hack up the board to change the supply voltage, but would rather not. That's why we want a drop in replacement for the Epson.

The first issue is finding one with extended temperature (we can do that) but the problem we have is figuring out in advance if the XO performance will be good enough for the V2Pro's MGTs. Do you have any performance requirement specs for the XO used for the MGTs that we could use in this search?

My reason for coming to the group was to find a part others have used with success

--
Ron


"Austin Lesea"  wrote in message 
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Reply to
Ron Huizen

Ron,

OK.

Aust> Austin,

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Austin Lesea

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