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參數(shù)資料
| 型號(hào)： | 1345CMPD |
| 英文描述： | FIBER OPTIC RECEIVER |
| 中文描述： | 光纖接收 |
| 文件頁(yè)數(shù)： | 6/12頁(yè) |
| 文件大?。?/td> | 72K |
| 代理商： | 1345CMPD |
3
Agere Systems Inc.
Data Sheet
1345-Type Receiver with
January 2000
Clock Recovery and Data Retiming
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 operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Parameter
Symbol
Min
Max
Unit
Supply Voltage
VCC
05.5
V
Operating Case Temperature Range
TC
–40
85
°C
Storage Case Temperature Range
Tstg
–40
85
°C
Lead Soldering Temperature/Time
—
250/10
°C/s
Operating Wavelength Range
λ
1.1
1.6
m
Minimum Fiber Bend Radius
—
1.0 (25.4)
—
in. (mm)
Pin Information
* Pins designated as no user connection are not connected inter-
nally. However, to allow for future functional upgrades, it is recom-
mended that the user not make any connections to these pins.
The link status flag is a logic flag that indicates the presence or
absence of a minimum acceptable level of optical input. A logic
high on the FLAG output indicates the presence of a valid optical
signal.
Mounting and Connections
The pigtail consists of a 39 in. ± 4 in. (1 m ± 10 cm),
62.5
m core/125 m cladding multimode fiber. The
standard fiber has a 0.036 in. (914 m) diameter tight-
buffered outer-jacket. The minimum fiber bending
radius during operation is 1.0 in. (25.4 mm).
Electrostatic Discharge
CAUTION: This device is susceptible to damage
as a result of electrostatic discharge
(ESD). Take proper precautions during
both handling and testing. Follow guide-
lines such as
EIA Standard EIA-625.
Although protection circuitry is designed into the
device, take proper precautions to avoid exposure to
ESD.
Agere Systems Inc. employs a human-body model
(HBM) for ESD susceptibility testing and protection-
design evaluation. ESD voltage thresholds are depen-
dent on the critical parameters used to define the
model. A standard HBM (resistance = 1.5 k
capaci-
tance = 100 pF) is widely used and, therefore, can be
used for comparison purposes. The HBM ESD thresh-
old established for the 1345 receiver is ±1000 V.
Receiver Processing
The 1345-Type receiver devices can withstand normal
wave-soldering processes. The complete receiver
module is not hermetically sealed; therefore, it should
not be immersed in or sprayed with any cleaning solu-
tion or solvents. The process cap and fiber pigtail jacket
can deform at temperatures greater than 85 °C. The
receiver pins can be wave-soldered at maximum tem-
perature of 250 °C for 10 seconds.
Pin
Name
Pin
Name
1
Ground
20
No User Connection*
2
Ground
19
No User Connection*
3
Ground
18
No User Connection*
4
CLOCK
17
No User Connection*
5CLOCK
16
Ground
6
Ground
15
Ground
7DATA
14
FLAG
8
Ground
13
Ground
9DATA
12
FLAG
10
No Internal
Connection or
Optional VPIN
11
VCC
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