S1M8837 Samsung Semiconductor, Inc., S1M8837 Datasheet - Page 3

• Manufacturer Part Number: S1M8837
• Description: Fractional-n Rf/integer-n If Dual Pll
• Manufacturer: Samsung Semiconductor, Inc.

FRACTIONAL-N RF/INTEGER-N IF DUAL PLL
BLOCK DIAGRAM
V
CP
GND
DD
V
DGND
OSCin
V
DD
f
f
O
in
in
RFa
P
RF
RF
RF
RF
RF
RF
1
2
3
4
5
6
7
8
9
Charge
Pump
+ -
RF
Frac-N Latch &
Modulator
Prescaler
Control
Detector
Phase
RF
RF
LD
RF Prescaler
OUT0
foLD
24
10
RF R-Latch
Programmable
RF Reference
RF N-Latch
Counter
Counter
RF
foLD Data Out
Multiplexer
RF_EN
OUT1
23
11
Programmable
20-Bit Shift Register
IF Reference
Counter
Counter
IF N-Latch
IF R-Latch
IF
IF Prescaler
IF_EN
V
DD
22
12
IF
Detector
Phase
LD
Prescaler
IF
IF
Control
Control
2-Bit
Charge
Pump
IF
- +
S1M8836/37
21
20
19
18
17
16
15
14
13
V
CP
DGND
f
f
GND
LE
DATA
CLOCK
in
in
P
IF
IF
IF
O
IF
IF
3