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参数资料
| 型号： | 1243CBDC |
| 英文描述： | CAP .056UF 16V PPS FILM 1210 2% |
| 中文描述： | 1241/1243/1245-Type非致冷激光发射器 |
| 文件页数： | 8/12页 |
| 文件大小： | 173K |
| 代理商： | 1243CBDC |
Agere Systems Inc.
5
Data Sheet
September 1999
1241/1243/1245-Type Uncooled Laser
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.
*With VEE connected to –5 V, VCC must be at 0 V; with VCC connected to +5 V, VEE must be at 0V.
Specification depends upon the code ordered. The device is capable of a cold start at –40 °C; specifications are met
after a warm-up time determined by the system thermal design.
Characteristics
Minimum and maximum values specified over operating case temperature range at 50% duty cycle data signal and
end of life (EOL).Typical values are measured at beginning-of-life (BOL) room temperature unless otherwise noted.
Table 2. Electrical Characteristics
1. With VEE connected to –5V, V CC must be at 0 V; with VCC connected to +5 V, VEE must be at 0 V.
2. Input measured from VCC with 50
load to (VCC – 2 V). 10K, 10K H, and 100K ECL compatible.
3. Between 10% and 90% (50% duty cycle) where t is the bit period in ns.
4. The transmitter is normally enabled and only requires an external voltage to disable.
5. Time measured from rising edge of disable signal until optical output (laser diode) has turned off.
6. Time measured from falling edge of enable signal until optical output has stabilized at nominal output power level.
7. The laser bias current is obtained by dividing the bias voltage by the 10
current-sensing resistors. (See Figure 1.) When measuring these
voltages or using them in conjunction with alarm circuits, use a high-input impedance device.
8. The laser back-facet monitor voltage is a scaled output that tracks the transmitter optical output power.
Parameter
Symbol
Min
Max
Unit
Supply Voltage*
——
5.5
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
Relative Humidity (noncondensing)
RH
—
85
%
Minimum Fiber Bend Radius
—
1.00 (25.4)
—
in. (mm)
Parameter
Symbol
Min
Typ
Max
Unit
Power Supply Voltage1
V
4.75
5.0
5.50
V
Power Supply Current Drain
ITOTAL
—
30
130
mA
Input Data Voltage:2
Low
High
VIL
VIH
–1.81
–1.16
—
–1.47
–0.88
V
Input Transition Time3
tI
—t/4
—
ns
Transmitter Disable Voltage4
VD
VCC – 2.0
—
VCC
V
Transmitter Enable Voltage
VEN
VEE
—VEE + 0.8
V
Output Disable Time5
tD
—
0.20
s
Output Enable Time6
tEN
—
2.00
s
Laser Bias Voltage7
VB
0.01
0.06
0.70
V
Laser Monitor Voltage (50% duty cycle)8
VBF
0.01
0.05
0.20
V
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