That is, both the frequency of change in {TAIL ~ the delay} and the level of delay or phase difference depend on {HEAD ~ the jitter control signal} 
That is , both the frequency of change in { TAIL ~ the delay } and the level of delay or phase difference depend on { HEAD ~ the jitter control signal }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD