Hi Paul,
I just looked at your website and learned about the NB3N502.? Because of the concern about spectral purity that Hans mentioned, I'm thinking of using this chip.? I'd divide the 15 MHz by 2 and configure this chip to multiply by 3.333.? An alternative is to use the Cypress CY22800 or CY22801 to convert the 15 MHz to 25 or 27 MHz.? The advantage of the latter is that I have these and their programmer on hand.? But the NB3N502 has a better jitter spec.? Do you think jitter even matters when feeding an Si5351A?
Halden VE7UTS