When the clock is turned off through an enable line, the clock output that feeds into the CDCS501PWR is low. During this, the output of the part has a pulsed oscillation.
I have tried making sure that the signal fed into the CDCS is pulled low and pulled high. The same problem occurs on the output either way. Checking with the oscilloscope this problem does not exist on the input of the CDCS.
I have removed the 18pF and 15pF capacitors on the output. I have removed a ferrite bead on the output. I have removed the resistor on the output. I have even tried pulling the output up with a 1k resistor up or down. I always have the same output when the clock is disabled with every individual change.
This problem does not exist when the clock is enabled.
Any help is greatly appreciated.