sy89474u Micrel Semiconductor, sy89474u Datasheet - Page 6

• Manufacturer Part Number: sy89474u
• Description: Precision Lvds 2 1 Multiplexer With 1 2 Fanout And Internal Termination
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
AC Electrical Characteristics
V
Notes:
7.
8.
9.
10. Random Jitter is measured with a K28.7 pattern, measured at ≤ f
11. Deterministic Jitter is measured with both K28.5 and 2
12. Cycle-to-cycle jitter definition: The variation of periods between adjacent cycles, T
13. Total Jitter definition: With an ideal clock input of frequency <f
14. Crosstalk is measured at the output while applying two similar differential clock frequencies that are asynchronous with respect to each
August 2005
Symbol
f
t
t
Tempco
t
t
t
CC
MAX
pd
pd
SKEW
Jitter
r,
t
f
High-frequency AC-parameters are guaranteed by design and characterization.
Output-to-output skew is measured between two different outputs under identical 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.
more than the specified peak-to-peak jitter value.
other at the inputs.
= 2.5V ±5%; T
Parameter
Maximum Operating Frequency
Differential Propagation Delay In-to-Q
Differential Propagation Delay
Temperature Coefficient
Output-to-Output Skew
Part-to-Part Skew
Data
Clock
Crosstalk-Induced Jitter
Output Rise/Fall Time (20% to 80%)
A
= -40°C to + 85°C; R
Cycle-to-cycle Jitter
Deterministic Jitter
Random Jitter
Total Jitter
SEL-to-Q
(7)
L
= 100Ω across output pair; unless otherwise stated
23
-1 PRBS pattern, measured at ≤ f
Condition
V
V
Note 8
Note 9
Note 10
Note 11
Note 12
Note 13
Note 14
At full output swing.
OUT
TH
= V
MAX
≥ 200mV
MAX
, no more than one output edge in 10
CC
/2
.
6
n
– T
n-1
NRZ Data
where T is the time between rising edges of the
MAX
Clock
.
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12
Min
220
200
2.5
2.5
30
output edges will deviate by
Typ
320
350
158
3.2
4
5
Max
or [phone]
200
470
550
150
0.7
20
10
10
1
1
M9999-081105
SY89474U
ps
ps
Units
Gbps
ps
fs/
GHz
ps
ps
ps
ps
ps
ps
ps
RMS
RMS
RMS
o
PP
PP
C