Tool/software:
Hello,
We're currently in the process of designing a FPGA based PCB for which we intend to use a clock generator (such as the CDCE6214) to generate the neccesary clock frequencies.
My question is aimed at the input source of said clock generator, which can be either a crystal or external oscilliator. We would like to use an external oscillator because of the better temperature stability it provides, however we noticed that the clock generator in question only specifies its output specifications (such as jitter) based on a crystal input. This suggests that the "correct" way to use this IC is to use a crystal instead of an external oscillator, is that assumption correct? And could you explain why this is the case?
Kind Regards,
Vincent van Tol
