S1M8837 Samsung Semiconductor, Inc., S1M8837 Datasheet - Page 25

• 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
Serial Data Input Timing
Phase Detector and Charge Pump Characteristics
Phase difference detection Range : -2
When the positive-slope polarity of PFD is selected, W2[17]=HIGH or W3[13]=HIGH;
CLOCK
DATA
LE
LE
CP
LD
f
f
p
o
r
DATA[21]
MSB
fr > fp
DATA[20]
to +2
fr = fp
t
DS
DATA[10]
fr < fp
t
OR
DH
DATA[9]
fr < fp
t
DH
CTL[1]
fr < fp
t
CWH
CTL[0]
t
LSB
CLE
t
LEW
S1M8836/37
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