
ICS843021AG REVISION D OCTOBER 12, 2010
5
2010 Integrated Device Technology, Inc.
ICS843021 Data Sheet
FEMTOCLOCK CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR
Parameter Measurement Information
3.3V LVPECL Output Load AC Test Circuit
Output Duty Cycle/Pulse Width/Period
RMS Phase Jitter
Output Rise/Fall Time
SCOPE
Q
nQ
LVPECL
V
EE
VCC,
VCCA
2V
-1.3V±0.33V
nQ0
Q0
t
PW
t
PERIOD
t
PW
t
PERIOD
odc =
x 100%
Phase Noise Mask
Offset Frequency
f
1
f
2
Phase Noise Plot
RMS Jitter = Area Under the Masked Phase Noise Plot
Noise
P
o
w
er
20%
80%
20%
tR
t F
VSWING
nQ0
Q0