Intel® Quartus® Prime Software
Intel® Quartus® Prime Design Software, Design Entry, Synthesis, Simulation, Verification, Timing Analysis, System Design (Platform Designer, formerly Qsys)
Announcements
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.
15311 Discussions

Clock to 1Ghz with Altera PLL ?

Altera_Forum
Honored Contributor I
1,194 Views

Hello,  

 

I have a DE0-Nano-SoC with Cyclone V 5CSEMA4U23C6N and a external-clock to 50Mhz. I would like a clock to 1Ghz with Altera PLL, is it possible ?  

Today, I have a clock to 800Mhz with PLL Altera but I can't exceed 800Mhz ! 

 

Thank you very much. 

 

PS : Sorry for my English, I am French.
0 Kudos
5 Replies
Altera_Forum
Honored Contributor I
198 Views

Hi, 

 

Not possible,As per PLL specification. 

Check table:30 in below link  

https://www.altera.com/en_us/pdfs/literature/hb/cyclone-v/cv_51002.pdf 

 

Let me know if this has helped resolve the issue you are facing or if you need any further assistance. 

 

Best Regards, 

Anand Raj Shankar 

(This message was posted on behalf of Intel Corporation)
Altera_Forum
Honored Contributor I
198 Views

Hi,  

 

Thank you for your reply. 

Does it exist FPGA which can have a clock to 1Ghz ? (Arria, Stratix) 

 

Thank
Altera_Forum
Honored Contributor I
198 Views

Hi, 

 

General PLL does not support 1GHz. 

For transceiver PLL ie F-PLL, CMU-PLL & ATX-PLL which supports higher frequency in most of the latest device family. 

For more information you can refer the data sheet of the device. 

 

Let me know if you need any further assistance. 

 

Best Regards, 

Anand Raj Shankar 

(This message was posted on behalf of Intel Corporation)
Altera_Forum
Honored Contributor I
198 Views

Hi,  

 

I watched this datasheet (https://www.altera.com/en_us/pdfs/literature/hb/stratix-10/s10_datasheet.pdf) of Stratix 10. 

In table 51, the stratix 10 can have a clock to 1Ghz, it's exact ? 

 

Thank.
Altera_Forum
Honored Contributor I
198 Views

Besides listing maximum PLL frequencies of different FPGA families, what do you want to clock with 1 GHz?

Reply