AK1547 Datasheet, PDF (15/37 Pages) Asahi Kasei Microsystems – 4GHz Low Noise Integer-N Frequency Synthesizer

[AK1547]
MS1464-E-00
Unlock ([LD]=Low)
Flag=0
No
Phase Error < T
Yes
Flag = Flag+1
No
Flag > N
Yes
Lock ([LD]=High)
Fig. 8 Unlock to Lock Operation Flow
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 Lock to Unlock Operation Flow
15
2012/9