ICS843031-01 Datasheet, PDF (4/16 Pages) Integrated Device Technology – FEMTOCLOCKS™ CRYSTAL-TO- 3.3V, 2.5V LVPECL CLOCK GENERATOR

ICS843031-01
FEMTOCLOCKS™ CRYSTAL-TO-3.3V, 2.5V LVPECL CLOCK GENERATOR
TABLE 4D. LVPECL DC CHARACTERISTICS, V_CC = 3.3V±5% OR 2.5V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum Typical
V_OH
Output High Voltage; NOTE 1
V_OL
Output Low Voltage; NOTE 1
V_SWING
Peak-to-Peak Output Voltage Swing
NOTE 1: Outputs terminated with 50Ω to V_CC - 2V.
V_CC - 1.4
V_CC - 2.0
0.6
Maximum
V_CC - 0.9
V_CC - 1.7
1.0
Units
V
V
V
TABLE 5. 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
40
7
300
Units
MHz
Ω
pF
mW
TABLE 6A. AC CHARACTERISTICS, V_CC = 3.3V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
f_OUT
tjit(Ø)
t_R / t_F
odc
Output Frequency
RMS Phase Jitter ( Random);
NOTE 1
Output Rise/Fall Time
Output Duty Cycle
312.5MHz @ Integration Range:
1.875MHz - 20MHz
20% to 80%
NOTE 1: Please refer to the Phase Noise Plots following this section.
Minimum Typical Maximum Units
280
312.5
340
MHz
0.46
ps
150
500
ps
48
52
%
TABLE 6B. AC CHARACTERISTICS, V_CC = 2.5V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
f
OUT
tjit(Ø)
Output Frequency
RMS Phase Jitter ( Random);
NOTE 1
312.5MHz @ Integration Range:
1.875MHz - 20MHz
t_R / t_F
odc
Output Rise/Fall Time
Output Duty Cycle
20% to 80%
NOTE 1: Please refer to the Phase Noise Plots following this section.
Minimum Typical Maximum Units
280
312.5
340
MHz
0.48
ps
150
500
ps
48
52
%
IDT^™ / ICS^™ 3.3V, 2.5V LVPECL CLOCK GENERATOR
4
ICS843031AG-01 REV. A AUGUST 1, 2007