Endolith
Member
If a chip has an integrated clock driver that uses an external crystal in the MHz, with Xin and Xout pins, what are the difficulties of using one chip's Xout pin as a master clock to drive other chips' Xin pins?
Of course all the chips must use the same crystal frequency. What else? Does the signal need to be buffered? What would you use for that? Does the voltage level matter? Does fanout to multiple chips load down the source and degrade the signal? Would it be better to use a dedicated oscillator to drive all the chips' clock inputs?
Of course all the chips must use the same crystal frequency. What else? Does the signal need to be buffered? What would you use for that? Does the voltage level matter? Does fanout to multiple chips load down the source and degrade the signal? Would it be better to use a dedicated oscillator to drive all the chips' clock inputs?