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參數(shù)資料
| 型號(hào)： | C486CD41 |
| 英文描述： | Quad bus buffer (3-state) |
| 中文描述： | 電信提供商/數(shù)據(jù)通信 |
| 文件頁(yè)數(shù)： | 2/15頁(yè) |
| 文件大?。?/td> | 426K |
| 代理商： | C486CD41 |
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Agere Systems Inc.
C482, C484, and C486 (C48-Type)
2.5 Gbits/s Cooled Laser Transmitters
Data Sheet, Rev. 1
September 2002
Transmitter Processing
The transmitter can withstand normal wave soldering
processes. The complete transmitter module is not her-
metically sealed; therefore, it should not be immersed
in, or sprayed with, any cleaning solution or solvents.
The process cap and fiber pigtail jacket can deform at
temperatures greater than 85 °C. The transmitter pins
can be wave-soldered at a maximum temperature of
250 °C for 10 seconds.
Installation Considerations
Although the transmitter has been designed with rug-
gedness in mind, care should be used during handling.
The optical connector should be kept free from dust,
and the process cap should be kept in place as a dust
cover when the device is not connected to a cable. If
contamination is present on the optical connector, the
use of canned air with an extension tube should
remove any debris. Other cleaning procedures are
identified in the
Cleaning Fiber-Optic Assemblies
Tech-
nical Note (TN95-010LWP).
Connector Options
The standard fiber-optic pigtail is an 8
μ
m core single-
mode fiber in a 0.036 in. (914
μ
m) diameter, tight-buff-
ered outer jacket. The standard length is 39 in. ± 4 in.
(1 m ± 10 cm) and is terminated with an FC/PC or
SC/PC optical connector. Other connector options may
be available on special order. Please contact your
Account Manager at Agere Systems Inc. for ordering
information.
Table 1. Pin Descriptions
1. Laser back-facet (pin 2) and bias alarm functions (pin 3) are cus-
tomer-use options that are not required for normal operations of
the transmitter and are normally used during manufacture and for
diagnostics. Pin 3 output will optionally be either an analog bias
monitor (default) or a digital logic signal (LDA). (See Table 2.)
2. Pins designated no user connection (NUC) must
not
be tied to
ground or any other circuit potential.
3. When logic 0, the nominal channel wavelength (n) is selected;
when logic 1, the n – 1 channel wavelength is selected.
4. V
EE
is not used. This pin is NUC. The V
EE
labeling is maintained
for MSA purposes.
Pin Number
Name
1
2
3
4
5
6
7
8
9
Ground (TEC)
Back-facet Monitor
1
Bias Monitor/Laser Degrade Alarm
1
Tx Enable
Clock Select
Ground
Wavelength-Deviation Error Alarm
NUC
2
NUC
2
Wavelength Selection Command
3
Ground
V
EE
4
V
CC
VTEC
(TEC supply voltage)
Ground
DATA
Ground
DATA
Ground
CLOCK
Ground
CLOCK
Ground
V
CC
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Parameter
Symbol
—
T
C
T
stg
—
RH
—
V
TEC
Min
—
–15
–40
—
—
Max
5.25
70
85
250/10
85
—
3.5
Unit
V
°C
°C
°C/s
%
in. (mm)
V
Supply Voltage
Operating Case Temperature Range
Storage Case Temperature Range
Lead Soldering Temperature/Time
Relative Humidity (noncondensing)
Minimum Fiber-bend Radius
TEC Voltage
1.00 (25.4)
—
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