ICS843004I-01 Datasheet, PDF (6/14 Pages) Integrated Circuit Systems – FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
ICS843004I-01
FEMTOCLOCKS™ CRYSTAL-TO-
3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER
PARAMETER MEASUREMENT INFORMATION
2V
V_CC,
V_CCA, V_CCO
LVPECL
V_EE
-1.3V ± 0.33V
SCOPE
Qx
nQx
2V
V_CC,
V_CCA, V_CCO
LVPECL
V_EE
-0.5V ± 0.125V
SCOPE
Qx
nQx
3.3V CORE/3.3V OUTPUT LOAD AC TEST CIRCUIT
nQx
Qx
nQy
Qy
t sk(o)
OUTPUT SKEW
2.5V CORE/2.5V OUTPUT LOAD AC TEST CIRCUIT
Phase Noise Plot
Phase Noise Mask
f₁ ^{Offset Frequency} f₂
RMS Jitter = Area Under the Masked Phase Noise Plot
RMS PHASE JITTER
Clock _20%
Outputs
80%
t_R
OUTPUT RISE/FALL TIME
843004AGI-01
80%
t_F
V_{SW I N G}
20%
nQ0:nQ3
Q0:Q3
Pulse Width
t
PERIOD
odc = ^{t PW}
t _PERIOD
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 11, 2005
6