FEMTOCLOCK® CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR 3 Rev D 9/25/15
843021 DATA SHEET
Table 4B. LVPECL DC Characteristics, V
CC
= 3.3V ±10%, V
EE
= 0V, T
A
= 0°C to 70°C
NOTE 1: Outputs termination with 50 to V
CC
– 2V.
Table 5. Crystal Characteristics
NOTE 1:Input frequency is limited to a range of 22.4MHz – 28MHz due to VCO range.
AC Electrical Characteristics
Table 6. AC Characteristics, V
CC
= 3.3V ± 10%, V
EE
= 0V, T
A
= 0°C to 70°
NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device is
mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal equilibrium
has been reached under these conditions.
NOTE 1: Refer to Phase Noise Plot.
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
Parameter Test Conditions Minimum Typical Maximum Units
Mode of Oscillation Fundamental
Frequency; NOTE 1 14 40 MHz
Equivalent Series Resistance (ESR) 50
Shunt Capacitance 7pF
Symbol Parameter Test Conditions Minimum Typical Maximum Units
f
OUT
Output Frequency 112 140 MHz
tjit(Ø)
RMS Phase Jitter, Random;
NOTE 1
125MHz,
Integration Range: 1.875MHz – 20MHz
0.37 0.65 ps
t
R
/ t
F
Output Rise/Fall Time 20% to 80% 250 550 ps
odc Output Duty Cycle 49 51 %
