AK1545 Datasheet, PDF (3/39 Pages) Asahi Kasei Microsystems – 3.5GHz Low Noise Integer-N Frequency Synthesizer

3. Block Diagram
[AK1545]
R COUNTER
REFIN
14 bit
PHASE
FREQENCY
CHARGE
DETECTOR
PUMP
CP
CLK
REGISTER
DATA
21 bit
LE
LOCK DETECT
FAST
COUNTER
SW
SWALLOW
COUNTER
5 bit
PROGRAMABLE
COUNTER
13 bit
N DIVIDER
RFINP
+
PRESCALER
LD
RFINN
-
32/33
Fig. 1 Block Diagram
MS1471-E-00
3
2012/10