what are the additive RMS jitter from 12K to 20MHz @100MHz LVPECL for LMK00304 and LMK00308?
This performance is not descripted in datasheet.
I estimate the additive jitter will be about 61 fs rms. Of course it will depend upon the exact slew rate of the input, since the slew rate impacts noise floor as shown in the typ. char graphs.
73,
Timothy