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Integrated Device Technology Electronic Components Datasheet

ICS843S1066 Datasheet

CRYSTAL-TO-3.3V LVPECL CLOCK SYNTHESIZER

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ICS843S1066 pdf
CRYSTAL-TO-3.3V LVPECL CLOCK SYNTHESIZER
ICS843S1066
General Description
The ICS843S1066 is a high frequency clock
ICS generator and is a member of the HiPerClockS™
HiPerClockS™ family of High Performance Clock Solutions from
IDT. The ICS843S1066 uses an external 20MHz
crystal to synthesize either 1066.67MHz or
1600MHz. The ICS843S1066 has excellent cycle-to-cycle and
RMS period jitter performance.
The ICS843S1066 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: 1.9ps (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
F_SEL
Crystal Frequency (MHz)
0 20
1 20
Multiplier Value
53.3
80
Output Frequency (MHz)
1066.67 (default)
1600
Block Diagram
F_SEL Pulldown
20MHz
XTAL_IN
OSC
XTAL_OUT
PLL Multiplier
Q
nQ
Pin Assignment
VCCA
VEE
XTAL_OUT
XTAL_IN
1
2
3
4
8 VCC
7Q
6 nQ
5 F_SEL
ICS843S1066
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
ICS843S1066CG REV. A AUGUST 27, 2008


Integrated Device Technology Electronic Components Datasheet

ICS843S1066 Datasheet

CRYSTAL-TO-3.3V LVPECL CLOCK SYNTHESIZER

No Preview Available !

ICS843S1066 pdf
ICS843S1066
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.
5
F_SEL
Input Pulldown Frequency select pin. LVCMOS/LVTTL interface levels.
6, 7
nQ, Q
Output
Differential output pair. LVPECL interface levels.
8 VCC Power
Core supply pin.
NOTE: Pulldown refers to internal input resistors. See Table 2, Pin Characteristics, for typical values.
Table 3. Pin Characteristics
Symbol
Parameter
CIN Input Capacitance
RPULLDOWN Input Pulldown Resistor
Test Conditions
Minimum
Typical
4
51
Maximum
Units
pF
k
Absolute Maximum Ratings
NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device.
These ratings are stress specifications only. Functional operation of product at these conditions or any conditions beyond
those listed in the DC Characteristics or AC Characteristics is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect product reliability.
Item
Supply Voltage, VCC
Inputs, VI
Outputs, IO
Continuos Current
Surge Current
Package Thermal Impedance, θJA
Storage Temperature, TSTG
Rating
4.6V
-0.5V to VCC+ 0.5V
50mA
100mA
115.2°C/W (0 mps)
-65°C to 150°C
DC Electrical Characteristics
Table 4A. Power Supply DC Characteristics, VCC = 3.3V ± 5%, VEE = 0V, TA = 0°C to 70°C
Symbol Parameter
Test Conditions
Minimum Typical
VCC
VCCA
IEE
ICCA
Core Supply Voltage
Analog Supply Voltage
Power Supply Current
Analog Supply Current
3.135
VCC – 0.18
3.3
3.3
Maximum
3.465
VCC
53
18
Units
V
V
mA
mA
IDT™ / ICS™ 3.3V LVPECL CLOCK SYNTHESIZER
2
ICS843S1066CG REV. A AUGUST 27, 2008


Part Number ICS843S1066
Description CRYSTAL-TO-3.3V LVPECL CLOCK SYNTHESIZER
Maker IDT
Total Page 12 Pages
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