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PDF ICS843S1333 Data sheet ( Hoja de datos )

Número de pieza ICS843S1333
Descripción CRYSTAL-TO-3.3V LVPECL CLOCK SYNTHESIZER
Fabricantes IDT 
Logotipo IDT Logotipo



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CRYSTAL-TO-3.3V LVPECL CLOCK SYNTHESIZER
ICS843S1333
General Description
The ICS843S1333 is a high frequency clock
ICS generator and is a member of the HiPerClockS™
HiPerClockS™ family of High Performance Clock Solutions from
IDT. The ICS843S1333 uses an external 20MHz
crystal to synthesize 1333.33MHz. The
ICS843S1333 has excellent cycle-to-cycle and RMS period jitter
performance.
The ICS843S1333 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: 25ps (maximum)
Period Jitter, RMS: 2ps (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) packages
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)
DQ
CLK
Pin Assignment
VCCA 1
8 VCC
VEE 2
7Q
Q
XTAL_OUT 3
6 nQ
XTAL_IN 4
5 OE
nQ
ICS843S1333
8 Lead TSSOP
4.40mm x 3.0mm x 0.925mm package body
G Package
Top View
IDT™ / ICS™ 3.3V LVPECL CLOCK SYNTHESIZER
1
ICS843S1333CG REV. A AUGUST 28, 2008

1 page




ICS843S1333 pdf
ICS843S1333
CRYSTAL-TO-3.3V LVPECL CLOCK SYNTHESIZER
Parameter Measurement Information
2V
VCC
VCCA
LVPECL
VEE
SCOPE
Qx
nQx
-1.3V±0.165V
3.3V LVPECL Output Load AC Test Circuit
nQ
Q
tcycle n
tcycle n+1
| |tjit(cc) = tcycle n – tcycle n+1
1000 Cycles
Cycle-to-Cycle Jitter
VOH
VREF
1σ contains 68.26% of all measurements
2σ contains 95.4% of all measurements
3σ contains 99.73% of all measurements
4σ contains 99.99366% of all measurements
6σ contains (100-1.973x10-7)% of all measurements
Reference Point
(Trigger Edge)
Histogram
Mean Period
(First edge after trigger)
VOL
Period Jitter
nQ
20%
Q
80%
tR
Output Rise/Fall Time
80%
tF
VSW I N G
20%
nQ
Q
t PW
t
PERIOD
odc = t PW x 100%
t PERIOD
Output Duty Cycle/Pulse Width/Period
IDT™ / ICS™ 3.3V LVPECL CLOCK SYNTHESIZER
5
ICS843S1333CG REV. A AUGUST 287, 2008

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ICS843S1333 arduino
ICS843S1333
CRYSTAL-TO-3.3V LVPECL CLOCK SYNTHESIZER
Reliability Information
Table 8. θJA vs. Air Flow Table for a 8 Lead TSSOP
θJA vs. Air Flow
Meters per Second
0
Multi-Layer PCB, JEDEC Standard Test Boards
115.2°C/W
Transistor Count
The transistor count for ICS843S1333 is: 1023
1
110.9°C/W
2.5
108.8°C/W
Package Outline and Package Dimensions
Package Outline - G Suffix for 8 Lead TSSOP
Table 9. Package Dimensions
All Dimensions in Millimeters
Symbol Minimum Maximum
N8
A 1.20
A1 0.5 0.15
A2 0.80 1.05
b 0.19 0.30
c 0.09 0.20
D 2.90 3.10
E 6.40 Basic
E1 4.30 4.50
e 0.65 Basic
L 0.45 0.75
α
aaa 0.10
Reference Document: JEDEC Publication 95, MO-153
IDT™ / ICS™ 3.3V LVPECL CLOCK SYNTHESIZER
11
ICS843S1333CG REV. A AUGUST 287, 2008

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