Rev A 3/30/15 6 FEMTOCLOCKS™ CRYSTAL-TO-LVCMOS/LVTTL FREQUENCY
SYNTHESIZER
840001-34 DATASHEET
AC Electrical Characteristics
Table 6A. AC Characteristics, V
DD
= V
DDO
= 3.3V ± 5%, T
A
= 0°C to 70°C
NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when device is
mounted in a test socket with maintained transverse airflow greater than 500 lfpm. Device will meet specifications after thermal equilibrium has
been reached under these conditions
NOTE 1: Please refer to Phase Noise Plot.
Table 6B. AC Characteristics, V
DD
= V
DDO
= 2.5V ± 5%, T
A
= 0°C to 70°C
NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when device is
mounted in a test socket with maintained transverse airflow greater than 500 lfpm. Device will meet specifications after thermal equilibrium has
been reached under these conditions
NOTE 1: Please refer to Phase Noise Plot.
Parameter Symbol Test Conditions Minimum Typical Maximum Units
f
OUT
Output Frequency 81.67 213.33 MHz
tjit(Ø)
RMS Phase Jitter, Random;
NOTE 1
100MHz, Integration Range:
637kHz – 10MHz
0.54 ps
106.25MHz, Integration Range:
637kHz – 10MHz
0.38 ps
t
R
/ t
F
Output Rise/Fall Time 20% to 80% 200 700 ps
odc Output Duty Cycle
Q, N = 3 40 60 %
Q, N 348 52%
REF_OUT 48 52 %
Parameter Symbol Test Conditions Minimum Typical Maximum Units
f
OUT
Output Frequency 81.67 213.33 MHz
tjit(Ø)
RMS Phase Jitter, Random;
NOTE 1
100MHz, Integration Range:
637kHz – 10MHz
0.54 ps
106.25MHz, Integration Range:
637kHz – 10MHz
0.38 ps
t
R
/ t
F
Output Rise/Fall Time 20% to 80% 300 800 ps
odc Output Duty Cycle
Q, N = 3 35 65 %
Q, N 340 60%
REF_OUT 45 55 %