AK1542A Datasheet, PDF (3/37 Pages) Asahi Kasei Microsystems – 20 to 600MHz Integer-N Frequency Synthesizer

3. Block Diagram
[AK1542A]
REFIN
CLK
DATA
LE
RFINP
RFINN
LDO
R COUNTER
14 bit
REGISTER
24 bit
SWALLOW
COUNTER
6 bit
PROGRAMABLE
COUNTER
13 bit
PHASE
FREQENCY
DETECTOR
LOCK DETECT
N DIVIDER
+
PRESCALER
-
8/9,16/17,32/33
CHARGE
PUMP
FAST
COUNTER
BIAS
CP
CPZ
SWIN
LD
Fig. 1 Block Diagram
MS1399-E-00
-3-
2012/3