ICS843N3960I Datasheet, PDF (6/20 Pages) Integrated Device Technology – Fourth Generation FemtoClock

ICS843N3960I Data Sheet
FEMTOCLOCK® NG CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR
AC Electrical Characteristics
Table 6. AC Characteristics, V_CC = 3.3V ± 5%, V_EE = 0V, T_A = -40°C to 85°
Symbol Parameter
Test Conditions
FSEL_[0:1] = 00
f_OUT
Output Frequency
FSEL_[0:1] = 01
FSEL_[0:1] = 10
FSEL_[0:1] = 11
100MHz,
Integration Range: 12kHz – 20MHz
tjit(Ø)
RMS Phase Jitter, Random;
NOTE 1
125MHz,
Integration Range: 12kHz – 20MHz
156.25MHz,
Integration Range: 12kHz – 20MHz
212.5MHz,
Integration Range: 12kHz – 20MHz
tsk(o)
Output Skew; NOTE 2, 3
t_R / t_F
odc
Output Rise/Fall Time
Output Duty Cycle
20% to 80%
Minimum
Typical
100
156.25
125
212.5
0.331
Maximum
0.510
Units
MHz
MHz
MHz
MHz
ps
0.300
0.575
ps
0.375
0.504
ps
0.300
0.512
ps
50
ps
285
600
ps
48
52
%
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 Plots.
NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at the differential
crosspoints.
NOTE 3: These parameters are guaranteed by characterization. Not tested in production.
ICS843N3960DGI REVISION B SEPTEMBER 24, 2012
6
©2012 Integrated Device Technology, Inc.