ICS8430-61 Datasheet, PDF (7/15 Pages) Integrated Circuit Systems – 500MHZ, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
ICS8430-61
500MHZ, CRYSTAL-TO-3.3V DIFFERENTIAL
LVPECL FREQUENCY SYNTHESIZER
PARAMETER MEASUREMENT INFORMATION
2V
V_CC,
V_CCA, V_CCO
LVPECL
V_EE
-1.3V ± 0.165V
SCOPE
Qx
nQx
nFOUTx
FOUTx
nFOUTy
FOUTy
t sk(o)
3.3V OUTPUT LOAD AC TEST CIRCUIT
OUTPUT SKEW
V_OH
V_REF
1σ contains 68.26% of all measurements
V_OL
2σ contains 95.4% of all measurements
3σ contains 99.73% of all measurements
4σ contains 99.99366% of all measurements
6σ contains (100-1.973x10^-7)% of all measurements
Reference Point
(Trigger Edge)
Histogram
Mean Period
(First edge after trigger)
nFOUTx
FOUTx
tcycle n
➤
tcycle n+1
➤
t jit(cc) = tcycle n –tcycle n+1
1000 Cycles
PERIOD JITTER
CYCLE-TO-CYCLE JITTER
Clock
20%
Outputs
80%
t_R
OUTPUT RISE/FALL TIME
8430AY-61
80%
t_F
V_{SW I N G}
20%
nFOUTx
FOUTx
Pulse Width
t
PERIOD
odc = ^{t PW}
t _PERIOD
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
www.icst.com/products/hiperclocks.html
7
REV. A JULY 22, 2004