Asking for ideas on ways to generate a 12.8 MHz clock signal that is referenced and/or derived from a 10 MHz OCXO. The 12.8 MHz clock is used in a radio, as a master reference.
I'd like to use what I already have on hand, if possible. I have some 14-pin Micro Crystal 10 MHz OXCO's, some AD9850 and AD9851 modules that I got from ebay some time ago, some IDT ICS501 LOCO PLL multipliers (this chip does x2, x3, x3.125, x4, x5, x5.3125, x6, x6.25, x8, but sadly, nothing binary), various 74xxx chips, various PIC, ATTiny, ATMega, Arduino, and probably other parts I'm forgetting.
The first, obvious solution that occurs to me is to to use the ICS501 to multiply the 10 MHz x3, use that to clock one of the AD9851 modules (replacing the stock 30 MHz oscillator), and use a uC to program the AD9851 to output 12.8 MHz.
However, there is probably some simpler, more elegant way to do this. Since the 12.8 MHz is binary, it occurs to me that perhaps there is some way to do this with logic chips, or a microcontroller, using the 10 MHz OCXO as a reference.
BTW, I did check the datasheets of other LOCO PLL chips, but none seem to have any binary multipliers.
Please offer up your suggestions. I'm sure someone here has a brilliant solution (being very serious).
Thanks.
Edit: fixed type (ISC501)