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FVanE1's avatar
FVanE1
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6 years ago

How can I connect an IO-PLL output clock to a reference clock input of a transceiver?

I have a ref clock of 312.5 MHz as input at the FPGA, a transceiver which requires 322.265625 MHz and 5.15625 GHz as reference clock inputs. The 5.15625 GHz can I make with a fPLL or ATX-PLL and conn...
SreekumarR_G_Intel's avatar
SreekumarR_G_Intel
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6 years ago

Hello Frank ,

Thank you for the input ,

I could able to do fitter compliation passed with two method as below

i) IOPLL output connected to FPLL aand FPLL generate the required datarate clock. (More jitter )

ii) FPLL output connected to ATX PLL and ATX PLL generate the required datarate clock. (Recommeded Method)

Here is attached example design for your reference and let me know if you have any question/concern

Note : This is not complete design for 10G KR base PHY ; just to make sure i can route the XCVR PLL use Fabric PLL.

Hope Helps

Thank you ,

Regards,

Sree

FVanE1's avatar
FVanE1
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6 years ago
Dear Sree, First of all, thank you for your support. However, I am not able to open the archived project file. I tried it with Quartus 19.2 Pro, could that be the problem (according to the filename it looks like you used 19.3)? The corresponding logging: ******* Archived project restoration attempt on Tue Jan 21 13:48:30 2020 Source archive file: /home/frank/proj/pit17018/tmp/intel support/a10_xcvr_fpll_19_3_0_222.qar Quartus Prime failed to read the archive or extract some files into /home/frank/proj/pit17018/tmp/intel support/a10_xcvr_fpll_19_3_0_222_restored/. ======= Files failed to restore before extraction terminated: ====== Met vriendelijke groeten / With kind regards, *Frank van Eijkelenburg* Lead Designer *T* +31(0)182594000 | *E* frank.van.eijkelenburg@technolution.nl <http://www.google.com/url?q=http%3A%2F%2Flinkedin.nl%2F%253C%253Cvoornaamachternaam%253E%253E&sa=D&sntz=1&usg=AFrqEzdYyF21CXz0c9GlCBfxLRkl-NCpRw> *A* Burgemeester Jamessingel 1, P.O. Box 2013, 2800 BD Gouda, The Netherlands | *W* technolution.com This e-mail is intended exclusively for the addressee(s), and may not be passed on to, or made available for use by any person other than the addressee(s). Technolution B.V. rules out any and every liability resulting from any electronic transmission.