FEMTOCLOCK® CRYSTAL-TO-LVDS 150MHZ CLOCK GENERATOR
4 REVISION B 10/15/15
844244I-04 DATA SHEET
AC Electrical Characteristics
Table 4A. AC Characteristics, V
DD
= 3.3V ± 5%, T
A
= -40°C to 85°
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: Characterized using a 25MHz crystal, f
OUT
@ 150MHz.
NOTE 1: Refer to Phase Noise Plots.
NOTE 2: This parameter is defined in accordance with JEDEC Standard 65.
NOTE 3: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at the output differential
cross points.
Table 4B. AC Characteristics, V
DD
= 2.5V ± 5%, T
A
= -40°C to 85°
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: Characterized using a 25MHz crystal, f
OUT
@ 150MHz.
NOTE 1: Refer to Phase Noise Plots.
NOTE 2: This parameter is defined in accordance with JEDEC Standard 65.
NOTE 3: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at the output differential
cross points.
Symbol Parameter Test Conditions Minimum Typical Maximum Units
f
OUT
Output Frequency 125 150 170 MHz
tjit(Ø)
RMS Phase Jitter,
Random; NOTE 1
150MHz,
Integration Range: 12kHz – 20MHz
0.9 ps
tsk(o) Output Skew; NOTE 2, 3 65 ps
t
R
/ t
F
Output Rise/Fall Time 20% to 80% 250 650 ps
odc Output Duty Cycle 48 52 %
Symbol Parameter Test Conditions Minimum Typical Maximum Units
f
OUT
Output Frequency 125 150 170 MHz
tjit(Ø)
RMS Phase Jitter,
Random; NOTE 1
150MHz,
Integration Range: 12kHz – 20MHz
1.1 ps
tsk(o) Output Skew; NOTE 2, 3 65 ps
t
R
/ t
F
Output Rise/Fall Time 20% to 80% 200 650 ps
odc Output Duty Cycle 48 52 %
