Luke Kenneth Casson Leighton schreef op vr 08-05-2020 om 11:42 [+0100]:
> On Friday, May 8, 2020, Staf Verhaegen <staf@fibraservi.eu> wrote:
> > Why only 24MHz without PLL ? You should have problems getting externalclock frequencies up to 100MHz without a problem inside a chip.
> 
> really? great!  and that's driven from an external 100mhz clock?  it seemsa little high, i guess i am used to SoCs which all run from a 24mhz XTAL.

There exist clock generator chips, some of them even programmable over a serial bus interface. In the retro world amiga 75MHz accelerator cards or above are not unheard of.
greets,Staf.