ICS843004 Datasheet, PDF (8/16 Pages) Integrated Circuit Systems – FEMTOCLOCKS™ LVCMOS/CRYSTAL-TO- 3.3V LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
ICS843004
FEMTOCLOCKS™ LVCMOS/CRYSTAL-TO-
3.3V LVPECL FREQUENCY SYNTHESIZER
PARAMETER MEASUREMENT INFORMATION
2V
V_CC,
V_CCA, V_CCO
LVPECL
V_EE
-1.3V±0.165V
nQx
SCOPE
Qx
Qx
nQy
nQx
Qy
t sk(o)
3.3V CORE/3.3V OUTPUT LOAD AC TEST CIRCUIT
OUTPUT SKEW
Phase Noise Plot
TEST_CLK
Phase Noise Mask
nQ0:nQ3
f₁ ^{Offset Frequency} f₂
Q0:Q3
t_PD
RMS Jitter = Area Under the Masked Phase Noise Plot
RMS PHASE JITTER
PROPAGATION DELAY
nQ0:nQ3
Q0:Q3
Pulse Width
t
PERIOD
odc = ^{t PW}
t _PERIOD
Clock
20%
Outputs
80%
t_R
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
OUTPUT RISE/FALL TIME
843004AG
www.icst.com/products/hiperclocks.html
8
80%
t_F
V_{SW I N G}
20%
REV. A NOVEMBER 18, 2004