AK1548 Datasheet, PDF (3/42 Pages) Asahi Kasei Microsystems – 8GHz Low Noise Integer-N Frequency Synthesizer

3. Block Diagram
[AK1548]
R EFIN
CLK
DATA
LE
RFIN P
RFINN
VBG
LDO
R COUNTER
14 bit
REGISTER
24 bit
PHASE
FREQENCY
DETECTOR
LOCK DETECT
SWALLOW
COUNTER
6 bit
P ROGRA MA BL E
COUNTER
13 bit
N D IVIDER
+
PRESCALER
-
8 /9,1 6/17 ,32/ 33,6 4/65
C HARGE
PUMP
FAST
COUNTER
BIAS
CP
LD
MS1364-E-00
3
2012/1