REVISION B 10/15/15 3 FEMTOCLOCK
®
CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR
843051 DATA SHEET
Table 3B. LVCMOS/LVTTL DC Characteristics, V
CC
= 3.3V ± 5%, V
EE
= 0V, T
A
= 0°C to 70°C
Table 3C. LVPECL DC Characteristics, V
CC
= 3.3V ± 5%, V
EE
= 0V, T
A
= 0°C to 70°C
NOTE 1: Outputs termination with 50 to V
CC
– 2V.
Table 4. Crystal Characteristics
AC Electrical Characteristics
Table 5. AC Characteristics, V
CC
= 3.3V ± 5%, 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: Please refer to Phase Noise Plot.
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
IH
Input High Voltage 2 V
CC
+ 0.3 V
V
IL
Input Low Voltage -0.3 0.8 V
I
IH
Input High Current V
CC
= V
IN
= 3.465V 150 µA
I
IL
Input Low Current V
CC
= 3.465V, V
IN
= 0V -5 µA
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 12 40 MHz
Equivalent Series Resistance (ESR) 50
Shunt Capacitance 7pF
Symbol Parameter Minimum Typical Maximum Units
f
OUT
Output Frequency
155.52 MHz
156.25 MHz
161.13 MHz
tjit(Ø)
RMS Phase Jitter,
Random; NOTE 1
155.52MHz, Integration Range: 12kHz – 20MHz 0.74 ps
156.25MHz, Integration Range: 1.875MHz – 20MHz 0.43 ps
156.25MHz, Integration Range: 12kHz – 20MHz 0.75 ps
161.13MHz, Integration Range: 1.933MHz – 20MHz 0.43 ps
161.13MHz, Integration Range: 12kHz – 20MHz 0.72 ps
t
R
/ t
F
Output Rise/Fall Time 20% to 80% 325 600 ps
odc Output Duty Cycle 49 51 %
