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niu_zun
Contributor
Contributor

‎02-27-2019 07:35 PM

275 Views
Registered: ‎12-19-2018

Should the GC and QBC clock be from the same source

Hello ，I wonder if the gc and  the QBC being from the same source will provide better performance or not？I

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bpatil
Xilinx Employee
Xilinx Employee

‎02-27-2019 08:23 PM

263 Views
Registered: ‎03-07-2018

Re: Should the GC and QBC clock be from the same source

Hello @niu_zun 

Can you please provide details on you usage and application?

Regards,
Bhushan

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niu_zun
Contributor
Contributor

‎02-27-2019 10:33 PM

244 Views
Registered: ‎12-19-2018

Re: Should the GC and QBC clock be from the same source

hello @bpatil 。I read the scematic of VCU118 with XCBU9P. I found the clock of the QBC pin for the DDR4 interface  doesn't have the same source as the GCLK.  I want to design an application reading data from the DDR4 SDRAM,SO I want to know why not provide identifical  source for the QBC and GC?I think the same source can be more accrate for reading and writing.

Thank you

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