AK1545 Datasheet, PDF (17/39 Pages) Asahi Kasei Microsystems – 3.5GHz Low Noise Integer-N Frequency Synthesizer

[AK1545]
Unlock ([LD]=LOW)
Flag=0
Phase Error < T
No
Yes
Flag = Flag+1
No
Flag > N
Yes
Lock ([LD]=HIGH)
Fig. 8 Unlocked → Locked
Lock ([LD]=HIGH)
Flag=0
PDN=0 or {PD1}=1
No
Phase Error > T
Yes
Flag = Flag+1
No
Flag > N
Yes
Unlock ([LD]=LOW)
Fig. 9 Locked → Unlocked
MS1471-E-00
17
2012/10