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| ICS8422002I-01 Datasheet, PDF (4/15 Pages) Integrated Circuit Systems – FEMTOCLOCKS™ CRYSTAL-TO-LVHSTL FREQUENCY SYNTHESIZER | |||
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ICS8422002I-01
FEMTOCLOCKS⢠CRYSTAL-TO-LVHSTL FREQUENCY SYNTHESIZER
PRELIMINARY
Table 3C. LVCMOS/LVTTL DC Characteristics, TA = -40°C to 85°C
Symbol Parameter
Test Conditions
VIH
Input High Voltage
VDD = 3.3V
VDD = 2.5V
VIL
Input Low Voltage
VDD = 3.3V
VDD = 2.5V
IIH
Input
REF_CLK, MR, F_SEL[0:1],
High Current nPLL_SEL, nXTAL_SEL
VDD = VIN = 3.465V
or 2.625V
IIL
Input
Low Current
REF_CLK, MR, F_SEL[0:1], VDD = 3.465V or 2.625V,
nPLL_SEL, nXTAL_SEL
VIN = 0V
Minimum
2
1.7
-0.3
-0.3
-5
Typical
Maximum
VDD + 0.3
VDD + 0.3
0.8
0.7
150
Units
V
V
V
V
µA
µA
Table 3D. LVHSTL DC Characteristics, VDD = VDDA = 3.3V ± 5%, VDDO = 1.8V ±0.2V, TA = -40°C to 85°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum
VOH
VOL
VOX
VSWING
Output High Current; NOTE 1
Output Low Current; NOTE 1
Output Crossover Voltage; NOTE 2
Peak-to-Peak Output Voltage Swing
1.0
1.2
0
0.4
40
60
0.6
1.1
NOTE 1: Outputs termination with 50⦠to ground.
NOTE 2: Defined with respect to output voltage swing at a given condition.
Units
V
V
%
V
Table 3E. LVHSTL DC Characteristics, VDD = VDDA = 2.5V ± 5%, VDDO = 1.8V ±0.2V, TA = -40°C to 85°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum
VOH
VOL
VOX
VSWING
Output High Current; NOTE 1
Output Low Current; NOTE 1
Output Crossover Voltage; NOTE 2
Peak-to-Peak Output Voltage Swing
1.0
1.2
0.235
40
60
0.9
NOTE 1: Outputs termination with 50⦠to ground.
NOTE 2: Defined with respect to output voltage swing at a given condition.
Units
V
V
%
V
Table 4. Crystal Characteristics
Parameter
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitance
Drive Level
Test Conditions
Minimum Typical Maximum
Fundamental
22.4
25
27.2
50
7
1
Units
MHz
â¦
pF
mW
IDT⢠/ ICS⢠LVHSTL FREQUENCY SYNTHESIZER
4
ICS8422002AGI-01 REV. C NOVEMBER 1, 2007
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