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 Model Number |
LF-T sereis |
Description
The LF-T series: Fiber Optic Modules are Fiber Optic Transmitting modules for
data link interface and Digital Audio Equipment, integrate LED and Driver IC
with constant current output.
Features
- Wide operating supply voltage between 2.7V to 5.5V.
- High speed transmission of high quality audio signal such as DVD players
and AV amplifiers. Signal transmission speed : 13.2Mbps Max.(NRZ Signal)
- Directly connectable to modulation IC for digital audio equipment.
- TTL compatible interface.
Applications
- Digital optical Data-Link
- AV equipment
(DVD player, Audio, CD player, STB, etc)
- Home appliances(PC, Notebook, etc.)
- Sound card.
Absolute maximum ratings
|
Parameter
|
Symbol
|
Ratings
|
Units
|
|
Supply Voltage
|
VCC
|
-0.5 to +7.0
|
V
|
|
Output Current
|
VIN
|
-0.5 to Vcc+0.5
|
V
|
|
Max. Loss
|
VOUT
|
125
|
mW
|
|
Operating Temperature
|
TOPR
|
-20 to +70
|
°C
|
|
Storage Temperature
|
Tstg
|
-30 to +80
|
°C
|
|
Soldering Temperature *1
|
Tsd
|
260, 5sec
|
°C
|
*1. t>5 s. 2.0mm from package
Reliability Test Items
|
Parameter
|
Test Conditions
|
Remarskl
|
|
High Temperature
|
Ta=+60, Vcc=5.0V t=500h |
*1, *2 |
|
Low Temperature
|
Ta=-20, Vcc=5.0V t=500h |
*1, *2 |
|
High Temp./High Humidity
|
Ta=+60C, 90%RH, Vcc=5.0V t=500h |
*1, *2 |
|
Heat Cycle
|
Ta=-30C(0.5h) to +80C(0.5h) 20cycle |
*2, *3 |
|
Soldering Heat
|
In case of solder bath method, Ta=260±10°C, 5s, 2times. Thickness
: 2.0mm
Incase of solder bath method, Ta=350°C, 3s, 1times. Soldering at the
place more than 7mm away from the Center a lens. |
|
|
Soldering Ability
|
Soldering at the place more than 3mm away from the Foot of the terminal.
Used as resin flux. |
|
|
Fall Test
|
Height=75cm, 3 times |
|
*1. Supply voltage of load test is 5V
*2. Electro-optical characteristics shall be satisfied after leaving 2 hours
in the normal condition
*3. Heat cyccle test shall repeat above condition 20 times under no load.
Electro-optical Characteristics
|
Parameter
|
Symbol
|
Conditions
|
Min
|
Typ.
|
Max.
|
Unit
|
|
Peak Emission Wavelength
|
λP
|
Vcc=4.75~5.25V
|
630
|
-
|
690
|
nm
|
|
Optical Power Output
Coupling with Fiber *1
|
Pc
|
Ref. to Fig.1
|
-21
|
-17
|
-14
|
dBm
|
|
Transmission Speed *2
|
T
|
NRZ signal
|
DC
|
|
13.2
|
Mbps
|
|
Dissipation Current
|
Icc
|
Ref. to Fig.1
|
-
|
6
|
10
|
mA
|
|
High Level Input Voltage
|
VIH
|
Ref. to Fig.1
|
2.0
|
-
|
-
|
V
|
|
Low Level Input Voltage
|
VIL
|
Ref. to Fig.1
|
-
|
-
|
0.8
|
V
|
|
Low to High Propagation Delay Time
|
tPLH
|
Ref. to Fig.2
|
-
|
-
|
100
|
ns
|
|
High to Low Propagation Delay Time
|
tPHL
|
Ref. to Fig.2
|
-
|
-
|
100
|
ns
|
|
Pulse Width Distortion
|
△tw
|
Ref. to Fig.1, 2
|
-10
|
-
|
10
|
ns
|
|
Jitter
|
△tj
|
Ref. to Fig.2
|
-
|
-
|
10
|
ns
|
|
Transmission Distance *3
|
|
Using POF
|
-
|
-
|
20
|
m
|
*1. Measure with a standard optical fiber, Peak value.
*2. LED is on when input signal is high level, it is high level, it is off when
low level.
The duty factor must be kept 25 to 75%
*3. Polymer Optical Fiber
Package for Fiber Optic Modules
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