Plastic Fiber Optic Photologic Detector
D
ESCRIPTION
IF-D96
3/19/04
The IF-D96 is a medium-speed photologic detector housed in a “connector-less”
style plastic fiber optic package. The detector contains an IC with a photodiode,
linear amplifier and Schmitt trigger logic circuit. The IF-D96 features an inverted
open-collector Schottky transistor (active low). The device can drive up to 5 TTL
loads over output (pull-up) voltages ranging from 4.5 to 18 Volts. Optical response
extends from 400 to 1100 nm, making it compatible with a wide range of LED
and laser diode sources. The detector package features an internal micro-lens
and a precision-molded PBT housing to ensure efficient optical coupling with
standard 1000 µm core plastic fiber cable.
A
P P L I C AT I O N
H
I G H L I G H T S
The IF-D96 is suitable for digital data links at rates up to 5 Mbps. A Schmitt trigger
improves noise immunity and TTL/CMOS logic compatibility greatly simplifies
interfacing with existing digital circuits. The integrated design of the IF-D96
provides simple, cost-effective implementation in a variety of digital applications.
A
P P L I CAT I O N S
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
Digital Data Links
PC-to-Peripheral Links
Process Control
Digitized Audio
Motor Controller Triggering
Intra-System Links: Board-to-
Board, Rack-to-Rack
Medical Instruments
Automotive Electronics
Robotics Communications
EMC/EMI Signal Isolation
F
E AT U R E S
◆
High Optical Sensitivity
◆
Mates with Standard 1000 µm Core Jacketed Plastic Fiber Optic Cable
◆
No Optical Design Required
◆
Inexpensive Plastic Connector Housing
◆
Internal Micro-Lens for Efficient Optical Coupling
◆
Connector-Less Fiber Termination
◆
Light-Tight Housing Provides Interference-Free Transmission
◆
Open Collector Output
M
A X I M U M
R
AT I N G S
(T
A
=25°C)
Operating and Storage
Temperature Range
(T
OP
, T
STG
)....................-40° to 85°C
Soldering Temperature
(2 mm from case bottom)
(T
S
) t≤5s ..................................240°C
Supply Voltage, (V
S
) ................-.5 to 7 V
Voltage at Output lead ..........-.5 to 18 V
Sinking Current, DC (I
C
) ............25 mA
Open Collector Power Dissipation
(P
TOT
) TA=25°C ....................40 mW
De-rate Above 25°C .........1.33 mW/°C
C
HA R A C T E R I S T I C S
(T
A
=25°C)
Parameter
Peak Sensitivity
Spectral Sensitivity (S=10% of S
MAX
)
Operating Voltage
High Level Supply Current V
CC=5.25 V
Low Level Supply Current V
CC=5.25 V
Light Required to Trigger (V
CC
=5 V,
R
L
=1 kΩ
λ=660
nm)
High Level Output Current V
OH
= 18 V)
Low Level Output Voltage (I
OL
= 8 mA)
Propagation Delay, Low-High
(f= 100.0 kHz, R
L
= 5 TTL Loads)
Propagation Delay, High-Low
(f= 100.0 kHz, R= 5 TTL Loads)
Symbol
λ
PEAK
∆λ
V
CC
I
CCL
I
CCL
Er (+)
I
OH
V
OL
t
PLH
t
PHL
Min
–
400
–
–
–
–
–
–
–
–
–
Typ
850
–
–
3.5
6.2
3.5
-24.5
5
0.4
65
49
Max
–
1100
5.5
6.3
10
–
250
.5
–
–
Unit
nm
nm
V
mA
mA
µW
dBm
µA
V
ns
ns
I
NDUSTRIAL
F
IBER
O
PTICS
, I
NC
.
•
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41
IF-D96
Plastic Fiber Optic Photologic Detector
F
IGURE
1.
Typical detector response versus wavelength.
F
IGURE
3.
Typical operating circuit.
F
I B E R
T
E R M I NAT I O N
I
N S T R U C T IO N S
1. Cut off the ends of the optical fiber with a single-
edge razor blade or sharp knife. Try to obtain a
precise 90-degree angle (square).
2. Insert the fiber through the locking nut and into the
connector until the core tip seats against the internal
micro-lens.
3. Screw the connector locking nut down to a snug fit,
locking the fiber in place.
F
IGURE
2.
Normalized threshold irradiance vs. amb. temp.
P
ACKAGE
I
DENTIFICATION
:
◆
D96– Black housing w/ Silver dot
• PIN 1. Ground
• PIN 2. Output
• PIN 3. Vcc
F
IGURE
4.
Case outline.
42
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NDUSTRIAL
F
IBER
O
PTICS
, I
NC
.
•
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Embedded System
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