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ICS843251I-15
FEMTOCLOCKCRYSTAL-TO-3.3V, 2.5V LVPECL CLOCK GENERATOR
IDT / ICS 3.3V, 2.5V LVPECL CLOCK GENERATOR
3
ICS843S51BGI-15 REV. A NOVEMBER 2, 2012
Table 3B. Power Supply DC Characteristics, VCC = 2.5V ± 5%, VEE = 0V, TA = -40°C to 85°C
Table 3C. LVCMOS/LVTTL DC Characteristics, VCC = 3.3V ± 5% or 2.5V ± 5%, VEE = 0V, TA = -40°C to 85°C
Table 3D. LVPECL DC Characteristics, VCC = 3.3V ± 5%, VEE = 0V, TA = -40°C to 85°C
NOTE 1: Outputs termination with 50
to V
CC – 2V.
Table 3E. LVPECL DC Characteristics, VCC = 2.5V ± 5%, VEE = 0V, TA = -40°C to 85°C
NOTE 1: Outputs termination with 50
to V
CC – 2V.
Table 4. Crystal Characteristics
NOTE: It is not recommended to overdrive the crystal input with an external clock.
Symbol
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
VCC
Core Supply Voltage
2.375
2.5
2.625
V
VCCA
Analog Supply Voltage
VCC – 0.08
2.5
VCC
V
IEE
Power Supply Current
78
mA
ICCA
Analog Supply Current
8mA
Symbol
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
VIH
Input High Voltage
VCC = 3.3V
2
VCC + 0.3
V
VCC = 2.5V
1.7
VCC + 0.3
V
VIL
Input Low Voltage
VCC = 3.3V
-0.3
0.8
V
VCC = 2.5V
-0.3
0.7
V
IIH
Input High Current
VCC = VIN = 3.465V or 2.625V
150
A
IIL
Input Low Current
VCC = 3.465V or 2.625V, VIN = 0V
-5
A
Symbol
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
VOH
Output High Current; NOTE 1
VCC – 1.4
VCC – 0.9
A
VOL
Output Low Current; NOTE 1
VCC – 2.0
VCC – 1.7
A
VSWING
Peak-to-Peak Output Voltage Swing
0.6
1.0
V
Symbol
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
VOH
Output High Current; NOTE 1
VCC – 1.4
VCC – 0.9
A
VOL
Output Low Current; NOTE 1
VCC – 2.0
VCC – 1.5
A
VSWING
Peak-to-Peak Output Voltage Swing
0.4
1.0
V
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
Mode of Oscillation
Fundamental
Frequency
23.2
30
MHz
Equivalent Series Resistance (ESR)
40
Shunt Capacitance
7pF
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