sy89228u Micrel Semiconductor, sy89228u Datasheet - Page 6

• Manufacturer Part Number: sy89228u
• Description: Sy89228u 1ghz Precision, Lvpecl ? 3, ? 5 Clock Divider With Fail-safe Input And Internal Termination
• Manufacturer: Micrel Semiconductor

AC Electrical Characteristics
V
Notes:
8. High-frequency AC-parameters are guaranteed by design and characterization.
9. The propagation delay is function of the rise and fall times at IN. Input t
10. Set-up and hold times apply to synchronous applications that intend to enable/disable before the next clock cycle. For asynchronous
11. Random Jitter is measured with a K28.7 character pattern, measured at <f
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. For Input Duty Cycle different from 50%, see “Output Duty Cycle Equation” in “Functional Description” subsection.
August 2007
Symbol
f
tw
t
t
t
t
t
t
t
CC
MAX
pd
RR
S
H
skew
JITTER
r,
for details.
applications, set-up and hold do not apply.
output signal.
than the specified peak-to-peak jitter value.
EN
EN
t
f
= 2.5V ±5% or 3.3V ±10%; R
Parameter
Maximum Input Operating
Frequency
Minimum Pulse Width
Differential Propagation Delay
Reset Recovery Time
Set-up Time
Hold Time
Part-to-Part Skew
Clock
Output Rise/Fall Time (20% to
80%)
Output Duty Cycle(÷ 3)
Output Duty Cycle(÷ 5)
In-to-Q
In-to-Q
/MR(H-L)-to-Q
Random Jitter
Cycle-to-Cycle Jitter
Total Jitter
L
= 50Ω to V
EN-to-IN
IN-to-EN
(8)
CC
V
100mV < V
Note 10
Note 10
Note 10
Note 12
Note 13
At full output swing.
Duty Cycle(input): 50%; f ≤1GHz;
Note 14
Duty Cycle(input): 50%; f ≤1GHz;
Note 14
Condition
IN, /IN
200mV < V
/MR(L-H)-to-IN
Note 11
-2V; T
OUT
≥ 200mV
MAX
A
, no more than one output edge in 10
= –40°C to + 85°C, unless otherwise stated.
6
IN
IN
≤ 200mV, Note 9
≤ 800mV, Note 9
r
/ t
f
MAX
≤ 300ps (20% to 80%)
.
n
– T
n-1
where T is the time between rising edges of the
[e-mail]
.
See “Typical Operating Characteristics”
Min
400
900
800
350
300
300
800
100
12
1.0
46
47
output edges will deviate by more
1150
1050
Typ
570
1.5
or [phone]
M9999-080707-A
1500
1400
Max
850
450
270
10
54
53
1
1
Units
ps
ps
GHz
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
%
%
RMS
RMS
PP