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L8045 参数 Datasheet PDF下载

L8045图片预览
型号: L8045
PDF下载: 下载PDF文件 查看货源
内容描述: 红色LED的光链路 [Red LED for optical link]
分类和应用:
文件页数/大小: 2 页 / 101 K
品牌: HAMAMATSU [ HAMAMATSU CORPORATION ]
 浏览型号L8045的Datasheet PDF文件第2页  
LED
Red LED for optical link
L8045
Emitter for 50 Mbps optical link
L8045 is optical communication devices designed for POF (Plastic Optical Fiber) data links. L8045 is a highly reliable, high-
power LED that emits red light with a peak at 650 nm optimized for POF. A mini-lens is molded on the package for efficient coupling
to a POF. When used with our recommended driver circuit, a 50 Mbps transmitter can be configured at low cost.
Features
Applications
l
Peak wavelength: 650 nm
l
High reliability
l
High output
l
Designed to be used with S8046 or S7141-10
s
Absolute m axim um ratings (Ta=25 °C)
l
High-speed data transmission even under poor environmental
conditions with high noise
Parameter
Symbol
Value
Forward current
I
F
40
Reverse voltage
V
R
5
1
Power dissipation *
Pmax
250
Operating temperature
Topr
-40 to +85
Storage temperature
Tstg
-40 to +85
Soldering
-
230 °C, 5 s, at least 1.8 mm away from package surface
*1: Derate power dissipation at a rate of -1.75 mW /°C above Ta=25
°C
Unit
mA
V
mW
°C
°C
-
s
Electrical and optical characteristics (Ta=25 °C)
Symbol
Condition
Min.
Typ.
Max.
Unit
Data rate
fD
NRZ
DC
-
50
Mbps
Forward voltage
V
F
I
F
=20 mA
-
1.9
2.3
V
Reverse current
I
R
V
R
=5 V
-
-
10
µA
Peak wavelength
I
F
=20 mA
-
650
-
nm
λp
Spectral half width (FW HM)
I
F
=20 mA
-
20
-
nm
∆λ
2
Fiber-coupled optical output
Po
*
-13
-
-8
dBm
Rise time at pulse drive
tr
*
2
20 to 80 %
-
-
8
ns
2
Fall time at pulse drive
tf
* 80 to 20 %
-
-
8
ns
*
2
Pulse distortion
-3
-
+1
ns
∆T
Jitter
*
2
-
-
3
ns
∆tj
*2: Input is a pseudo-random bi-phase signal at 50 Mbps.
Average value (duty ratio 50 %) measured by using a plastic fiber of
φ1
mm. SI-POF and NA=0.5 (GH4001 made by
Mitsubishi Rayon).
Measured with the recommended driver circuit shown below. (Measurement conditions: Vcc=4.5 to 5.5 V, R1=750
,
R2=2.2 kΩ, R3=22
Ω,
C1=35 pF)
Vcc
Icc
4.7
m
F
1 14 74ACT08
3
2
7
R3
C1
R1
1
2
3
4
L8045
0.1
m
F
R2
Parameter
SIGNAL INPUT
KLEDC0018EB
Note:
· A bypass capacitor (0.1 µF) and another capacitor (4.7 µF) are connected between Vcc and GND at a position within 3 mm from
the lead.
· The center of the optical fiber is aligned with the center of the lens on the package. The distance between the fiber end and the
lens is 0.1 mm.
1