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參數(shù)資料
| 型號： | L7140-10 |
| 元件分類： | 光發(fā)射 |
| 英文描述： | FIBER OPTIC LED EMITTER, 50Mbps, THROUGH HOLE MOUNT |
| 文件頁數(shù)： | 1/2頁 |
| 文件大小： | 221K |
| 代理商： | L7140-10 |
Features
Applications
l Data transmission in FA or OA applications subject to large
amounts of electro magnetic noise
l High-speed, short distance data transmission
l Burst data transmission
LED/PHOTO
IC
Red LED/Photo IC for optical link
For 50 Mbps optical link
L7140-10/S7141-10
l Peak emission wavelength: 650 nm
l High output power
l High-speed response
l DC to 50 Mbps data transmission
l Miniature size due to monolithic IC structure
l Designed to be used with L7140-10
l Digital output
l Inversion logic
L7140-10
S7141-10
Vcc
SIGNAL INPUT
1 14
2
7
74ACT08
3
0.1
mF
0.1
mFR2
L7140-10
R1
C1
1
2
3
4
5 ns/div.
s Output optical waveform
definition
80 %
20 %
tr
tf
KLEDC0015EB
s L7140-10 output optical
waveform example
KLEDC0014EB
* This is merely an example of drive circuit and not for actual large-
volume production purposes.
KLEDC0019EA
s Absolute maximum ratings (Ta=25
°C)
Parameter
Symbol
Value
Unit
Reverse voltage
VR
5V
L7140-10
Forward current
IF
40
mA
Power supply
Vcc
-0.5 to +7
V
S7141-10
Output current
Ioh
10
mA
Power dissipation *
1
P
250
mW
Operating temperature
Topr
-10 to +70
°C
Storage temperature
Tstg
-40 to +85
°C
Soldering
-
230 °C, 5 s, at least 1.5 mm away from package surface
-
*1: Derate power dissipation at a rate of 1.75 m W /°C above Ta=25 °C
s Electrical and optical characteristics (L7140-10) (Ta=25
°C)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Data rate
fD
Driven by recommended circuit
DC
-
50
Mbps
Forward voltage
VF
IF=20 mA
-
1.9
2.3
V
Reverse current
IR
VR=5 V
-
10
A
IF=10 mA *
2
-10
-
Fiber coupled optical power
Po
IF=20 mA *
2
-7
-
dBm
Peak wavelength
λp
IF=20 mA
-
650
-
nm
Spectral half width (FW HM)
λ
IF=20 mA
-
20
-
nm
Rise time at pulse drive
tr
Driven by recommended circuit *
3
--
8
ns
Fall time at pulse drive
tf
Driven by recommended circuit *
3
-
8
ns
*2: Output from a 1 meter long plastic fiber (GH4001 made by Mitsubishi Rayon) set close to the m olded lens.
*3: Output optical waveform is defined by the waveform shown below.
s Drive circuit example
(R1=300
, R2=750 , C1=77 pF)
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