FEMTOCLOCKS
®
CRYSTAL-TO-
3.3V, 2.5V LVPECL CLOCK MULTIPLIER
843081I-01 DATA SHEET
4 REVISION C 11/5/15
TABLE 5A. AC CHARACTERISTICS, V
CC
= V
CCA
= 3.3V ± 5%, TA = -40°C TO 85°C
TABLE 5B. AC CHARACTERISTICS, V
CC
= V
CCA
= 2.5V ± 5%, TA = -40°C TO 85°C
TABLE 3D. LVPECL DC CHARACTERISTICS, V
CC
= V
CCA
= 3.3V ± 5% OR 2.5V ± 5%, TA = -40°C TO 85°C
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
OH
Output High Voltage; NOTE 1 V
CC
- 1.4 V
CC
- 0.9 V
V
OL
Output Low Voltage; NOTE 1 V
CC
- 2.0 V
CC
- 1.7 V
V
SWING
Peak-to-Peak Output Voltage Swing 0.6 1.0 V
NOTE 1: Outputs terminated with 50Ω to V
CC
- 2V.
TABLE 4. CRYSTAL CHARACTERISTICS
Symbol Parameter Test Conditions Minimum Typical Maximum Units
f
OUT
Output Frequency 490 700 MHz
tjit(Ø)
RMS Phase Jitter (Random);
NOTE 1
625MHz @ Integration Range:
1.875MHz - 20MHz
0.32 ps
t
R
/ t
F
Output Rise/Fall Time 20% to 80% 125 600 ps
odc Output Duty Cycle XTAL = 25MHz 45 55 %
NOTE 1: Please refer to the Phase Noise Plot following this section.
Symbol Parameter Test Conditions Minimum Typical Maximum Units
f
OUT
Output Frequency 490 700 MHz
tjit(Ø)
RMS Phase Jitter (Random);
NOTE 1
625MHz @ Integration Range:
1.875MHz - 20MHz
0.39 ps
t
R
/ t
F
Output Rise/Fall Time 20% to 80% 125 650 ps
odc Output Duty Cycle XTAL = 25MHz 45 55 %
NOTE 1: Please refer to the Phase Noise Plot following this section.
Parameter Test Conditions Minimum Typical Maximum Units
Mode of Oscillation Fundamental
Frequency 19.6 28 MHz
Equivalent Series Resistance (ESR) 50
Ω
Shunt Capacitance 7pF
Drive Level 1mW
