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Observer luckzzylb
Observer
1,230 Views
Registered: ‎08-14-2017

How to choose clock oscillators as the clock inputs for PS reference clock?

Hello,

In my design, I want to use several clock oscillators as the clock inputs for PS reference clock, PS_MGTREFCLK and PL HDGC/GC of ZU9EG. However, in DS925, it only gives the clock jitter value:

PS clocks.png

 

Howeverfor choosing oscillators, I must know the requirement for the total stability (use ppm as a unit) of PS reference clock, PS_MGTREFCLK and PL HDGC/GC. So where can I find the requirement?

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3 Replies
Xilinx Employee
Xilinx Employee
1,212 Views
Registered: ‎08-10-2008

Re: How to choose clock oscillators as the clock inputs for PS reference clock?

Hi,

Check this for the phase noise mask:

https://www.xilinx.com/support/answers/66795.html  

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Observer luckzzylb
Observer
1,194 Views
Registered: ‎08-14-2017

Re: How to choose clock oscillators as the clock inputs for PS reference clock?

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Visitor matth32
Visitor
640 Views
Registered: ‎06-05-2018

Re: How to choose clock oscillators as the clock inputs for PS reference clock?

Hello,

I'm facing the same issue (and also for the MGT REF Clock).

@luckzzylb, Do you had any answer from Xilinx about this?

 

Thanks

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