
4
Precision Edge
SY58601U
Micrel, Inc.
M9999-082707
hbwhelp@micrel.com or (408) 955-1690
V
CC = 2.5V ±5% or 3.3V ±10%; TA = –40°C to +85°C; RL = 50 to VCC–2V, unless otherwise noted.
Symbol
Parameter
Condition
Min
Typ
Max
Units
fMAX
Maximum Operating Frequency
NRZ Data
5
Gbps
V
OUT ≥ 400mV
Clock
5
GHz
tpd
Propagation Delay IN-to-Q, /IN-to-Q
V
IN ≥ 100mV
70
125
220
ps
tpd Tempco Differential Propagation Delay
115
fs/°C
Temperature Coefficient
tJITTER
Data
Random Jitter (RJ)
Note 10
1psRMS
Deterministic Jitter (DJ)
Note 11
10
psPP
Clock
Cycle-to-Cycle Jitter
Note 12
1psRMS
Total Jitter (TJ)
Note 13
10
psPP
tr, tf
Output Rise/Fall Times
Q, /Q
(20% to 80%) At full output swing.
25
60
90
ps
Notes:
8. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.
9. High-frequency AC electricals are guaranteed by design and characterization.
10. Random jitter is measured with a K28.7 comma detect character pattern, measured at 2.5Gbps/3.2Gbps.
11. Deterministic jitter is measured at 2.5Gbps/3.2Gbps with both K28.5 and 223–1 PRBS pattern.
12. Cycle-to-cycle jitter definition: the variation of periods between adjacent cycles, T
n–Tn–1 where T is the time between rising edges of the output
signal.
13. Total jitter definition: with an ideal clock input of frequency ≤ fMAX, no more than one output edge in 10
12 output edges will deviate by more than the
specified peak-to-peak jitter value.
AC ELECTRICAL CHARACTERISTICS(9)
V
CC = 2.5V ±5% or 3.3V ±10%; TA = –40°C to +85°C; RL = 50 to VCC–2V, unless otherwise noted.
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
OH
Output HIGH Voltage
V
CC–1.145
V
CC–0.895
V
Q, /Q
V
OL
Output LOW Voltage
V
CC–1.945
V
CC–1.695
V
Q, /Q
V
OUT
Output Voltage Swing
See Figure 1a.
400
800
mV
Q, /Q
V
DIFF_OUT
Differential Output Voltage Swing
See Figure 1b.
800
1600
mV
Q, /Q
LVPECL OUTPUTS DC ELECTRICAL CHARACTERISTICS(8)