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S1M8833
FRACTIONAL-N RF/INTEGER-N IF DUAL PLL
Samsung
S1M8833 Datasheet PDF : 32 Pages
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FRACTIONAL-N RF/INTEGER-N IF DUAL PLL
BLOCK DIAGRAM
S1M8831A/33
OUT0
24
OUT1
23
V
DD
IF
22
V
DD
RF 1
V
P
RF 2
CP
O
RF 3
DGND 4
f
in
RF 5
RF
LD
RF
Charge
Pump
RF
Phase
Detector
foLD Data Out
Multiplexer
IF
LD
IF
Phase
Detector
IF
Charge
Pump
RF Prescaler
+-
Prescaler
Control
RF
Programmable
Counter
IF Prescaler
-+
IF
Programmable
Counter
Prescaler
Control
21 V
P
IF
20 CP
O
IF
19 DGND
18 f
in
IF
f
in
RF 6
GND
RF
7
OSCx 8
RF N-Latch
Frac-N Latch &
Σ−∆
Modulator
RF R-Latch
IF N-Latch
24-Bit Shift Register
2-Bit
Control
IF R-Latch
17
f
in
IF
16 GND
IF
15 LE
OSCin 9
RF Reference
Counter
IF Reference
Counter
10
foLD
11
RF_EN
12
IF_EN
14 DATA
13 CLOCK
3
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