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Altera_Forum
Honored Contributor
12 years ago27 MHz from 50 or 125 MHz?
Hello all, I am working on a project in which I need a 27MHz clock for the VGA interface. I am using Cyclone III 3c120 FPGA and it has only 50MHz and 125MHz oscillators. Can I get 27M...
Altera_Forum
Honored Contributor
12 years agoYou can easily calculate that 27 MHz can be achieved with small integer ratios. The problem may be that you are trying to generate another frequency with the same PLL which doesn't fit the divider parameters. In this case use two PLLs.