ICS8421002I-01 Datasheet, PDF (7/13 Pages) Integrated Circuit Systems – FEMTOCLOCKS™ CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
ICS8421002I-01
FEMTOCLOCKS™ CRYSTAL-TO-
HSTL FREQUENCY SYNTHESIZER
PARAMETER MEASUREMENT INFORMATION
V_DD
V_DDA
V_DDO
HSTL
GND
SCOPE
Qx
nQx
V_DD
V_DDA
V_DDO
HSTL
GND
SCOPE
Qx
nQx
0V
HSTL 3.3V/1.8V OUTPUT LOAD AC TEST CIRCUIT
nQx
Qx
nQy
Qy
t sk(o)
0V
HSTL 2.5V/1.8V OUTPUT LOAD AC TEST CIRCUIT
Clock _20%
Outputs
80%
t_R
80%
t_F
V_{SW I N G}
20%
OUTPUT SKEW
OUTPUT RISE/FALL TIME
Phase Noise Plot
Phase Noise Mask
nQ0, nQ1
Q0, Q1
f₁ ^{Offset Frequency} f₂
RMS Jitter = Area Under the Masked Phase Noise Plot
t _PW
t
PERIOD
odc = ^{t PW} x 100%
t _PERIOD
RMS PHASE JITTER
8421002AGI-01
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 6, 2006
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