Forum Discussion
Altera_Forum
Honored Contributor
15 years agoPLL frequency lock range
Hi, I have a serial video signal that I want to take into an FPGA, with a parallel clock that could range from about 20MHz up to 150MHz. I'm using an Arria II GX. Am I able to get the PLL in th...
Altera_Forum
Honored Contributor
15 years agoI assume, that you an DVI-like interface. In this case, a PLL will be obviously needed. Altera PLL specification doesn't provide a wide lock range as you are requesting, although the actual lock range may be considerably larger than the spec. A frequency discrininator and PLL reconfiguration can be a solution.