On 09/11/2014 06:55 AM, Federico Lucifredi wrote: >> The VGA expansion board, “is likely to have issues with EMC,” which means >> this probably won’t be a product. > Can anyone explain this? > > > Best -F
A bunch of digital I/O switching at high speed will propagate beyond the PCB. Due to the square wave nature of the signals , it will create a lot of harmonics and by consequence the electro-magnetic radiation will span a lot of spectrum. If you look at the PCB, there's no shielding at all. It's a poor mans DAC with all the guts on a PCB. cheers, Nuno -- http://aeminium.org/nuno/ _______________________________________________ Hardwarehacking mailing list [email protected] http://lists.blu.org/mailman/listinfo/hardwarehacking
