SY58021U(2005) Ver la hoja de datos (PDF) - Micrel
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SY58021U Datasheet PDF : 9 Pages
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Micrel, Inc.
Precision Edge®
SY58021U
AC ELECTRICAL CHARACTERISTICS
VCC = 2.5V ±5% or 3.3V ±10%; RL = 50Ω to VCC–2V; TA= –40°C to +85°C, unless otherwise stated.
Symbol
Parameter
Condition
Min Typ Max Units
fMAX
Maximum Operating Frequency
VOUT ≥ 400mV
Clock 4
NRZ Data
5
GHz
Gbps
tpd
tCHAN
tSKEW
tJITTER
tr, tf
Propagation Delay
Channel-to-Channel Skew
Part-to-Part Skew
Clock
Cycle-to-Cycle Jitter
Total Jitter
Data
Random Jitter
Deterministic Jitter
Output Rise/Fall Time 20% to 80%
Note 7
Note 8
Note 9
Note 10
Note 11
Note 12
At full swing.
150 220 300
ps
4
15
ps
50
ps
2.5Gbps – 3.2Gbps
2.5Gbps – 3.2Gbps
35
1
psRMS
10
psPP
1
psRMS
10
psPP
75
110
ps
Notes:
7. Skew is measured between outputs of the same bank under identical transitions.
8. 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.
9. 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.
10. 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.
11. Random jitter is measured with a K28.7 comma detect character pattern, measured at 2.5Gbps/3.2Gbps.
12. Deterministic jitter is measured at 2.5Gbps/3.2Gbps with both K28.5 and 223–1 PRBS pattern
TIMING DIAGRAM
/IN
IN
/Q
Q
tpd
SINGLE-ENDED AND DIFFERENTIAL SWINGS
VIN,
VOUT
800mV
Figure 1a. Single-Ended Voltage Swing
M9999-062405
hbwhelp@micrel.com or (408) 955-1690
4
VDIFF_IN,
VDIFF_OUT 1.6V
Figure 1b. Differential Voltage Swing
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