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Integrated Device Technology Electronic Components Datasheet

ICS843S1333D Datasheet

Crystal-to-3.3V LVPECL Clock Synthesizer

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ICS843S1333D pdf
Crystal-to-3.3V LVPECL Clock Synthesizer ICS843S1333D
DATA SHEET
General Description
ICS
HiPerClockS™
The ICS843S1333D is a high frequency clock
generator. The ICS843S1333D uses an external
20MHz crystal to synthesize 1333.33MHz. The
ICS843S1333D has excellent cycle-to-cycle and RMS
period jitter performance.
The ICS843S1333D operates at 3.3V operating supply and is
available in a fully RoHS compliant 8-lead TSSOP package.
Features
One differential LVPECL output
Crystal oscillator interface designed for 18pF, 20MHz parallel
resonant crystal
Cycle-to-Cycle Jitter: 14ps (maximum)
Period Jitter, RMS: 2.6ps (maximum)
Output Duty Cycle: 48 – 52%
Full 3.3V supply mode
0°C to 70°C ambient operating temperature
Available in lead-free (RoHS 6) package
Table 1. Frequency Table
Crystal Frequency (MHz)
20
Multiplier Value
66.67
Output Frequency (MHz)
1333.33
Block Diagram
OE Pullup
20MHz
XTAL_IN
OSC
XTAL_OUT
PLL Multiplier
(x66.67)
Q
nQ
Pin Assignment
VCCA
VEE
XTAL_OUT
XTAL_IN
1
2
3
4
8 VCC
7Q
6 nQ
5 OE
ICS843S1333D
8 Lead TSSOP
4.40mm x 3.0mm x 0.925mm package body
G Package
Top View
ICS843S1333DG REVISION A MAY 6, 2010
1
©2010 Integrated Device Technology, Inc.


Integrated Device Technology Electronic Components Datasheet

ICS843S1333D Datasheet

Crystal-to-3.3V LVPECL Clock Synthesizer

No Preview Available !

ICS843S1333D pdf
ICS843S1333D Data Sheet
CRYSTAL-TO-3.3V LVPECL CLOCK SYNTHESIZER
Table 2. Pin Descriptions
Number
Name
Type
Description
1
VCCA
Power
2 VEE Power
3,
4
XTAL_OUT
XTAL_IN
Input
Analog supply pin.
Negative supply pin.
Crystal oscillator interface. XTAL_IN is the input, XTAL_OUT is the output. External
tuning capacitor must be used for proper operation.
Synchronous output enable. When logic HIGH, the outputs are enabled and active.
5
OE
Input
Pullup When logic LOW, Q output is forced LOW and nQ output is forced HIGH.
LVCMOS/LVTTL interface levels.
6, 7
nQ, Q
Output
Differential output pair. LVPECL interface levels.
8 VCC Power
Core supply pin.
NOTE: Pullup refers to internal input resistors. See Table 2, Pin Characteristics, for typical values.
Table 3. Pin Characteristics
Symbol
CIN
RPULLUP
Parameter
Input Capacitance
Input Pullup Resistor
Test Conditions
Minimum
Typical
2
51
Maximum
Units
pF
k
ICS843S1333DG REVISION A MAY 6, 2010
2
©2010 Integrated Device Technology, Inc.


Part Number ICS843S1333D
Description Crystal-to-3.3V LVPECL Clock Synthesizer
Maker IDT
Total Page 14 Pages
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