sy84113bu Micrel Semiconductor, sy84113bu Datasheet - Page 4

• Manufacturer Part Number: sy84113bu
• Description: Low Power 2.5v 1.25gbps Limiting Post Amplifier With Ultra Wide Los Range
• Manufacturer: Micrel Semiconductor

January 2011
AC Electrical Characteristics
V
Notes:
1. Permanent device damage may occur if absolute maximum ratings are exceeded. This is a stress rating only and functional operation is not
2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings.
3. Package Thermal Resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB. ψ
4. Amplifier in limiting mode. Input is a 200MHz square wave.
5. Deterministic jitter measured using 1.250 Gbps K28.5 pattern, V
6. Random jitter measured using 1.250Gbps K28.7 pattern, V
7. See “Typical Operating Characteristics” for a graph showing how to choose a particular R
8. This specification defines electrical hysteresis as 20log (LOS De-Assert/LOS Assert). The ratio between optical hysteresis and electrical
9. In real world applications, the LOS Release/Assert time can be strongly influenced by the RC time constant of the AC-coupling cap and the
Symbol
t
t
V
V
T
T
LOS
LOS
HYS
LOS
LOS
HYS
LOS
LOS
HYS
B
A
S
CC
r
JITTER
, t
OFF
ON
ID
OD
-3dB
V(Diff)
21
implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to absolute maximum ratings conditions
for extended periods may affect device reliability.
4-layer and θ
de-assert amplitude.
hysteresis is found to vary between 1.5 and 2 depending upon the level of received optical power and ROSA characteristics. Based on that
ratio, the optical hysteresis corresponding to the electrical hysteresis range 2dB-4.5 dB, shown in the AC characteristics table, will be 1dB-3dB
Optical Hysteresis.
50Ω input termination. To keep this time low, use a decoupling cap with the lowest value that is allowed by the data rate and the number of
consecutive identical bits in the application (typical values are in the range of 0.001µF to 1.0µF).
f
= 2.5 ± 5%; T
AL
DL
AM
DM
AH
DH
L
M
H
Parameter
Output Rise/Fall Time
(20% to 80%)
Deterministic
Random
Differential Input Voltage Swing
Differential Output Voltage
Swing
LOS Release Time
LOS Assert Time
Low LOS Assert Level
Low LOS De-assert Level
Low LOS Hysteresis
Medium LOS Assert Level
Medium LOS De-assert Level
Medium LOS Hysteresis
High LOS Assert Level
High LOS De-assert Level
High LOS Hysteresis
3dB Bandwidth
Differential Voltage Gain
Single-Ended Small-Signal Gain
JA
in still air unless otherwise stated.
A
= –40°C to +85°C, typical values at V
Condition
Note 4
Note 5
Note 6
Note 4
Note 9
Note 9
R
R
R
R
R
R
R
R
R
LOSLVL
LOSLVL
LOSLVL
LOSLVL
LOSLVL
LOSLVL
LOSLVL
LOSLVL
LOSLVL
ID
= 10kΩ, Note 7
= 10kΩ, Note 7
= 10kΩ, Note 8
= 5kΩ, Note 7
= 5kΩ, Note 7
= 5kΩ, Note 8
= 100Ω, Note 7
= 100Ω, Note 7
= 100Ω, Note 8
= 60mV
ID
= 60mV
CC
PP
= 2.5V, T
.
4
PP
.
A
= 25°C.; R
LOSLVL
for a particular LOS assert and its associated
Load
[e-mail]
Min
700
60
26
5
2
7
2
2
= 50Ω to V
13.6
Typ
150
800
103
850
3.9
5.6
3.1
9.2
3.4
3.0
15
73
38
32
5
2
2
CC
;
or [phone]
M9999-011711-A
1800
Max
260
950
130
4.5
4.5
4.5
10
10
16
JB
Units
ps
mV
mV
mV
mV
mV
mV
mV
mV
uses a
MHz
ps
uS
uS
dB
dB
dB
dB
dB
ps
RMS
PP
PP
PP
PP
PP
PP
PP
PP
PP