How does the clock clean-up function of the AD951x parts work?
The AD9510 and AD9511 include an on-chip PLL core which requires an external VCO or VCXO and a loop filter to configure a PLL loop. This PLL loop can be used to considerably clean up a reference clock signal which has picked up noise as it has been distributed. This has the effect of reducing the phase noise and time jitter on a noisy clock reference.
