I am designing a board at the moment with two ICs. One needs a 100Mhz clock, the other, an MCU ~8Mhz-25Mhz.
Is it a daft idea to divide the 100Mhz clock down for the MCU? The clocks don't really need to be in sync for any reason.
The chips will be about 40mm apart on the board.
I plan to use the Silicon Labs 511BBA100M000AAG - OSC, 100MHZ, ±50PPM, 3.3V, SMD for the 100Mhz clock.
If anyone can give me any issues to consider either way, I'd be grateful.
Thanks!
R