ICS843001-21 Datasheet, PDF (7/15 Pages) Integrated Circuit Systems – FEMTOCLOCKS™ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
ICS843001-21
FEMTOCLOCKS™ CRYSTAL-TO-3.3V LVPECL
FREQUENCY SYNTHESIZER
PARAMETER MEASUREMENT INFORMATION
2V
V_CC,
V_CCA,
V_{CCO_LVPECL}
LVPECL
V_EE
-1.3V±0.165V
SCOPE
Qx
nQx
1.65±5%
V_CC,
V_CCA,
V_{CCO_LVCMOS}
LVCMOS
V_EE
-1.65V±5%
SCOPE
Qx
3.3V LVPECL OUTPUT LOAD AC TEST CIRCUIT
Phase Noise Plot
Phase Noise Mask
3.3V LVCMOS OUTPUT LOAD AC TEST CIRCUIT
nQ0
Q0
t _PW
t
PERIOD
odc = ^{t PW} x 100%
t _PERIOD
f₁ ^{Offset Frequency} f₂
RMS Jitter = Area Under the Masked Phase Noise Plot
RMS PHASE JITTER
REF_CLK
t _PW
V
CCO_LVCMOS
2
t
PERIOD
odc = ^{t PW} x 100%
t _PERIOD
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
Clock
20%
Outputs
80%
t_R
OUTPUT RISE/FALL TIME
843001AG-21
80%
t_F
V_SWING ^TEST_CLK
20%
REF_CLK
V_CC
2
V_{CCO_LVCMOS}
2
t
PD
PROPAGATION DELAY
www.icst.com/products/hiperclocks.html
7
REV. A OCTOBER 26, 2005