ICS843004I-04 Datasheet, PDF (5/14 Pages) Integrated Circuit Systems – FEMTOCLOCKS-TM CRYSTAL/LVCMOS-TO- 3.3V LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
ICS843004I-04
FEMTOCLOCKS™ CRYSTAL/LVCMOS-TO-
3.3V LVPECL FREQUENCY SYNTHESIZER
PARAMETER MEASUREMENT INFORMATION
2V
V_CCA = 2V
V_CC,
V_CCO
LVPECL
V_EE
SCOPE
Qx
nQx
-1.3V±0.165V
3.3V CORE/3.3V OUTPUT LOAD AC TEST CIRCUIT
Phase Noise Plot
nQx
Qx
nQy
Qy
t sk(o)
OUTPUT SKEW
Phase Noise Mask
f₁ ^{Offset Frequency} f₂
RMS Jitter = Area Under the Masked Phase Noise Plot
Clock
20%
Outputs
80%
t_R
RMS PHASE JITTER
OUTPUT RISE/FALL TIME
80%
t_F
V_{SW I N G}
20%
nQ0:nQ3
Q0:Q3
t _PW
t
PERIOD
odc = ^{t PW} x 100%
t _PERIOD
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
843004AGI-04
www.icst.com/products/hiperclocks.html
5
REV. A FEBRUARY 15, 2006