L9534 Datasheet, PDF (1/2 Pages) Hamamatsu Corporation – Red LED for optical link Red LED for 125 Mbps optical link

LED
Red LED for optical link
L9534
Red LED for 125 Mbps optical link
L9534 is a LED ideal for high-speed POF communications. L9534 is sealed in a small plastic package with a lens, allowing easy coupling
to an FOP.
Features
l Peak emission wavelength: 650 nm
l High-speed response and high output power
Applications
l Home networks and short-range high-speed data
communications
s Absolute maximum ratings (Ta=25 °C)
Parameter
Symbol
Value
Unit
Forward current
IF
40
mA
Reverse voltage
VR
3
V
Power dissipation *¹
Pmax
250
mW
Operating temperature
Topr
-20 to +70
°C
Storage temperature
Tstg
-40 to +85
°C
Soldering
-
230 °C, 5 s, at least 1.8 mm away from package surface
-
*1: Power dissipation going down at a rate of -1.75 mW/°C above Ta=25 °C
s Electrical and optical characteristics (Ta=25 °C)
Parameter
Symbol
Condition
Data rate
fD
NRZ *²
Forward voltage
VF
IF=20 mA
Reverse current
IR
VR=3 V
Peak emission wavelength
λp
IF=20 mA
Spectral half width (FWHM)
∆λ
IF=20 mA
Fiber-coupled optical output
Po
*^{2, 3, 4}
Pulse distortion
∆T
*^{2, 3}
Jitter
∆tj
*^{2, 3}
*2: Measured with the recommended driver circuit shown below.
(Vcc=4.75 to 5.25 V, R1=180 Ω, R2=470 Ω, R3=10 Ω, C1=47 pF)
Vcc
Icc
4.7 mF
0.1 mF R2
SIGNAL INPUT
1 ^{14 74ACT08} R1
2
3
7
C1
L9534
1
R3 ²
3
4
Min.
Typ.
Max.
Unit
DC
-
125
Mbps
1.8
2.0
2.5
V
-
-
10
µA
-
650
-
nm
-
20
-
nm
-6.5
-
-3
dBm
-2
-
0
ns
-
-
1.5
ns
KLEDC0039EA
*3: Input is a pseudo-random bi-phase signal at 125 Mbps (NRZ signal conversion).
*4: 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).
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