REVISION B 10/29/15 5 FEMTOCLOCK
®
CRYSTAL-TO-3.3V, 2.5V LVPECL CLOCK GENERATOR
843251I-15 DATA SHEET
AC Electrical Characteristics
Table 5A. AC Characteristics, V
CC
= 3.3V ± 5%, V
EE
= 0V, T
A
= -40°C to 85°C
NOTE 1: Refer to Phase Noise Plots.
Table 5B. AC Characteristics, V
CC
= 2.5V ± 5%, V
EE
= 0V, T
A
= -40°C to 85°C
NOTE 1: Refer to Phase Noise Plots.
Symbol Parameter Test Conditions Minimum Typical Maximum Units
f
OUT
Output Frequency
FREQ_SEL = 0 116 150 MHz
FREQ_SEL = 1 580 750 MHz
tjit(Ø)
RMS Phase Jitter, Random;
NOTE 1
125MHz,
(Integration Range: 1.875MHz – 20MHz)
0.45 ps
625MHz,
(Integration Range: 1.875MHz – 20MHz)
0.34 ps
t
R
/ t
F
Output Rise/Fall Time 20% to 80% 100 600 ps
odc Output Duty Cycle 47 53 %
Symbol Parameter Test Conditions Minimum Typical Maximum Units
f
OUT
Output Frequency
FREQ_SEL = 0 116 150 MHz
FREQ_SEL = 1 580 750 MHz
tjit(Ø)
RMS Phase Jitter, Random;
NOTE 1
125MHz,
(Integration Range: 1.875MHz – 20MHz)
0.44 ps
625MHz,
(Integration Range: 1.875MHz – 20MHz)
0.33 ps
t
R
/ t
F
Output Rise/Fall Time 20% to 80% 100 600 ps
odc Output Duty Cycle 45 55 %
