sy89112u Micrel Semiconductor, sy89112u Datasheet - Page 7

• Manufacturer Part Number: sy89112u
• Description: 2.5/3.3v Low Jitter, Low Skew 1 12 Lvpecl Fanout Buffer With 2 1 Input Mux And Internal Termination
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
AC Electrical Characteristics
V
Notes:
6.
7.
8.
9.
10. Cycle-to-cycle jitter definition: The variation of periods between adjacent cycles, T
11. Random jitter is measured with a K28.7 character pattern, measured at <f
12. Total jitter definition: With an ideal clock input of frequency <f
13. Crosstalk is measured at the output while applying two similar differential clock frequencies that are asynchronous with respect to each
January 2008
Symbol
f
t
t
Tempco
t
t
t
t
t
CC
MAX
PD
PD
S
H
SKEW
JITTER
r,
t
f
High-frequency AC-parameters are guaranteed by design and characterization.
Set-up and hold times apply to synchronous applications that intend to enable/disable before the next clock cycle. For asynchronous
applications, set-up and hold do not apply.
Output-to-output skew is measured between two different outputs under identical input transitions.
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
output signal.
than the specified peak-to-peak jitter value.
other at the inputs.
= +2.5V ±5% or +3.3V ±10%; T
Parameter
Maximum Operating Frequency
Propagation Delay
Propagation Delay
Differential Propagation Delay Temperature
Coefficient
Set-up Time
Hold Time
Output-to-Output Skew
Part-to-Part Skew
Cycle-to-Cycle Jitter
Random Jitter (RJ)
Total Jitter (TJ)
Adjacent Channel Crosstalk-induced Jitter
Output Rise/Fall Time (20% to 80%)
A
= –40°C to + 85°C, R
(6)
CLK_SEL to Q
CLK-to-EN
EN-to-CLK
CLK to Q
MAX
, no more than one output edge in 10
7
Condition
V
V
Note 7
Note 7
Note 8
Note 9
Note 10
Note 11
Note 12
Note 13
At full output swing.
L
OUT
IN
= 50Ω to V
≥ 100mV
≥ 400mV
MAX
.
n
– T
CC
n-1
– 2V, unless otherwise stated.
where T is the time between rising edges of the
[e-mail]
12
Min
300
200
500
70
output edges will deviate by more
2
0
Typ
400
350
150
140
3
or [phone]
M9999-012908-B
Max
550
200
220
600
0.7
25
10
SY89112U
1
1
Units
ps
ps
ps
fs/
GHz
ps
ps
ps
ps
ps
ps
ps
RMS
RMS
(rms)
o
PP
C