6
Precision Edge
SY58037U
Micrel
VCC = 2.5V ±5% or 3.3V ±10%; TA= –40°C to +85°C, RL = 100Ω across each output pair or equivalent, unless otherwise stated.
Symbol
Parameter
Condition
Min
Typ
Max
Units
fMAX
Maximum Operating Frequency
NRZ data
5
Gbps
Clock
4
GHz
tpd
Differential Propagation Delay
VIN ≥ 100mV
(IN-to-Q)
240
35550
450
ps
(SEL-to-Q)
100
550
ps
Δtpd Tempco Differential Propagation Delay
215
fs/
°C
Temperature Coefficient
tSKEW
Output-to-Output Skew
Note 9
15
ps
Part-to-Part Skew
Note 10
150
ps
tJITTER
Data
Random Jitter (RJ)
Note 11
1psRMS
Deterministic Jitter (DJ)
Note 12
10
psPP
Clock
Cycle-to-Cycle Jitter
Note 13
1psRMS
Total Jitter (TJ)
Note 14
10
psPP
Crosstalk-induced Jitter
Note 15
0.7
psRMS
tr, tf
Output Rise/Fall Time
At full output swing, 20% to 80%.
20
40
70
ps
Notes:
8. High-frequency AC-parameters are guaranteed by design and characterization.
9. Output-to-output skew is measured between two different outputs under identical input transitions.
10. Part-to-part skew is defined for two parts with identical power supply voltages at the same temperature and with no skew of the edges at the
respective inputs
11. Random jitter is measured with a K28.7 character pattern, measured at
≤fMAX.
12. Deterministic jitter is measured at 2.5Gbps/3.2Gbps, with both K28.5 and 223–1 PRBS pattern.
13. Cycle-to-cycle jitter definition: the variation of periods between adjacent cycles, Tn – Tn–1 where T is the time between rising
edges of the output signal.
14. Total jitter definition: with an ideal clock input of frequency
≤fMAX, no more than one output edge in 1012 output edges will deviate by more than the
specified peak-to-peak jitter value.
15. Crosstalk is measured at the output while applying two similar differential clock frequencies that are asynchronous with respect to each other
adjacent inputs.
AC ELECTRICAL CHARACTERISTICS(8)