Other Parts Discussed in Thread: DAC38RF89
Hello,
We are currently using the LMX2594 in SYSREF repeater mode. The OSCin freq is 320 MHz and the SYSREF input is 80 MHz (this is matched to a DAC38RF89). The question is with the SYSREFREQ pin setup and hold time of 2.5 ns + 2 ns minimum. Are we going to have setup and hold issues on with this regarding the OSCin clock. I see that in this mode the SYSREF is reclocked to the Finterpolator, which in our case is something like 960 MHz. Is there a setup and hold concern in this mode and how does the SYSREF get re-clocked to the Finterpolator and then Fout?
Thanks,
Jon