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ICS843241I-04 Datasheet, PDF (6/14 Pages) Integrated Device Technology – FEMTOCLOCKS™ CRYSTAL-TO-3.3V, 2.5V LVPECL CLOCK GENERATOR
ICS843241I-04
FEMTOCLOCKS™ CRYSTAL-TO- 3.3V, 2.5V LVPECL CLOCK GENERATOR
PARAMETER MEASUREMENT INFORMATION
PRELIMINARY
2V
2V
VCC
VCCA
LVPECL
VEE
-1.3V ± 0.165V
SCOPE
Qx
nQx
3.3V OUTPUT LOAD AC TEST CIRCUIT
2V
2V
VCC
VCCA
LVPECL
VEE
-0.5V ± 0.125V
SCOPE
Qx
nQx
2.5V OUTPUT LOAD AC TEST CIRCUIT
nQ
20%
Q
80%
tR
OUTPUT RISE/FALL TIME
80%
tF
VSW I N G
20%
nQ
Q
t PW
t
PERIOD
odc = t PW x 100%
t PERIOD
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
Phase Noise Plot
Phase Noise Mask
f1 Offset Frequency f2
RMS Jitter = Area Under the Masked Phase Noise Plot
RMS PHASE JITTER
IDT™ / ICS™ 150MHZ, 3.3V, 2.5V LVPECLCLOCK GENERATOR
6
ICS843241AGI-04 REV. A MAY 1, 2008