HFD3023-500 Series
Fiber Optic TTL Detector
Fiber Optic Components
The HFD3023-500 Series is a direct coupled optical receiver
designed for use in short distance 850 nm fiber optic systems.
The receiver contains a monolithic IC (Integrated Circuit) with
an integral photodiode and amplification circuit, and an open
collector Schottky output. The output allows it to be directly
interfaced with standard TTL (Transistor-Transistor Logic)
circuits.
The HFD3023-500 Series converts the optical signal in a point-
to-point data communications fiber optic link to a TTL output.
The 0.006 in photodiode with a 0.024 in microlens (to enhance
the optics) is mechanically centered within the TO46 package.
Electrical isolation is important in obtaining the maximum
performance. A 0.1 µF bypass capacitor must be connected
between Vcc and ground. This minimizes power supply noise,
increasing the signal quality. Shielding can also reduce
coupled noise through use of ground plane PCB, shielding
around the device and shielding around the leads.
Pulse Width Distortion (PWD) is an increase in the output
pulse width (for high level optical input). The typical
performance curves illustrate how PWD varies with optical
power, temperature and frequency. The amount of PWD that a
given system can tolerate without an error due to a missing bit
of information is dependent upon system considerations. The
output of the HFD3023 will typically connect to the input of
some form of a serial interface adaptor IC. The specifications
for that IC govern the amount of PWD that can be tolerated in
the system.
The HFD3023-500 Series is the suggested replacement for
Honeywell’s HFD3023-002 Series.
FEATURES
•
•
•
•
•
Converts fiber optic signals to TTL digital outputs
Typical sensitivity 2 µW (-27 dBm)
High reliability
Hermetic package, TO46
Integral microlens for efficient fiber coupling
•
•
•
•
•
TYPICAL APPLICATIONS
Data communications
CCTV systems
Machine tools
Controls/drives
Packaging, converting and food processing machines
Optical power from the fiber strikes the photodiode and is
converted to electrical current. This current couples to the dc
amplifier, which drives an open collector transistor output. The
output, when connected to a pull up resistor, can interface to
TTL loads. The electrical signal is the inverse of the input light
signal. When light strikes the photodiode, the output is a low
logic level. When no light strikes the photodiode, the output is a
high logic level.
HFD3023-500 Series
ABSOLUTE MAXIMUM RATINGS
Storage temp.
-55
ºC
to 125
ºC
[-67
ºF
to 257
ºF]
Case operating temp. -40
ºC
to 85
ºC
[-40
ºF
to 185
ºF]
Lead solder temp.
260
ºC,
10 s
Supply voltage
+6 V
RECOMMENDED OPERATING CONDITIONS
Supply voltage
+4.5 V to +5.5 V
Optical input power
3
µW
to 100
µW
Optical signal pulse width
<100 ns
Optical signal edges
<20 ns
CAUTION
PRODUCT DAMAGE
The inherent design of this component causes it to be sensitive
to electrostatic discharge (ESD). To prevent ESD-induced
damage and/or degradation to equipment, take normal ESD
precautions when handling this product.
Failure to comply with these instructions may result in
product damage.
ELECTRO-OPTICAL CHARACTERISTICS (Case T = 25 ºC [77 ºF])
Parameter
Test Condition
High level logic output voltage
Pin < 0.1 µW, R
L
= 560
Ω
Low level logic output voltage
Pin > 3 µW, R
L
= 560
Ω
Supply current 1
Pin > 3 µW
Supply current 2
Pin < 0.1 µW
Minimum input sensitivity
λ
= 850 nm into 100/140 µm optical fiber
f = 2.5 MHz, 50 % dc, PWD < 10%
Response time
10 % - 90 %, Pin < 10 µW
Vo = 0.5 V to 2.4 V, R
L
= 560
Ω
Pulse width distortion
f = 2.5 MHz, DC = 50 %
Pin = 3 µW peak,
Pin = 80 µW peak
FIGURE 1. BLOCK DIAGRAM
0.1 µF
BYPASS
V
CC
(PIN 1)
R
L
LIGHT
INPUT
SCHOTTKY
OUTPUT
(PIN 3)
Symbol
V
OH
V
OL
Icc1
Icc2
P
in (peak)
t
r
t
f
PWD
Min.
2.4
–
–
–
–
–
–
Typical
4.5
0.25
13
4.5
2.0
-27.0
6
6
5
25
Max.
–
0.5
15
6.5
3.0
-25.2
9
9
10
25
Unit
V
V
mA
mA
µW
dBm
ns
ns
%
%
FIGURE 2. SWITCHING WAVEFORM
100 %
OPTICAL
INPUT
50 %
FIGURE 3. PULSE WIDTH DISTORTION
VS OPTICAL INPUT POWER
40
f = 2.5 MHz
50 % Duty Cycle
30
PWD - Pulse Width Distortion (%)
PULSE
WIDTH
0%
100 %
2.4 V
PULSE
WIDTH
0.5 V
t
r
t
f
20
10
GROUND
(PIN 2 AND PIN 4)
50 %
ELECTRICAL
OUTPUT
0%
0
-10
1
2
5
10 20
50 100
200
P
in
- Peak Optical Input Power (µW)
500 1000
FIGURE 4. PULSE WIDTH
DISTORTION VS TEMPERATURE
40
f = 2.5 MHz
50 % Duty Cycle
P
IN
= 10 µW Peak
FIGURE 5. PULSE WIDTH
DISTORTION VS FREQUENCY
40
T
A
= 25 °C
T
CC
= 5.0 V
P
IN
= 10 µOhm
FIGURE 6. PROPAGATION DELAY TIME
VS PEAK OPTICAL INPUT POWER
100
f = 2.5 MHz Square Wave
PD - Propogation Delay Time (ns)
80
P
OHL
60
PWD - Pulse Width Distortion (%)
PWD - Pulse Width Distortion (%)
30
30
20
20
10
10
40
T
A
= 25 °C
T
CC
= 5.0 V
R
L
= 560 Ohm
P
OLH
0
0
20
-10
-50
-25
0
25
50
75
100
T
A
= Case Temperature (°C)
-10
0.1 0.2
0.5
1.0 2.0
5.0
10
20
50
100
f - Frequency (MHz)
0
1
2
5
10 20
50
100 200
P
in
- Peak Optical Input Power (µW)
500 1000
2
www.honeywell.com/sensing
Fiber Optic Components
DIMENSIONS (For reference only (mm/[in])
FIGURE 7. HFD3023-500
FIGURE 8. HFD3023-500-ADA (SMA 4 Hole)
FIGURE 9. HFD3023-500-AAA (SMA Single Hole)
FIGURE 10. HFD3023-500-BAA (ST Single Hole)
FIGURE 11. HFD3023-500-ABA (SMA PCB)
FIGURE 12. HFD3023-500-BBA (ST PCB)
Honeywell Sensing and Control
3
ORDER GUIDE
Catalog Listing
HFD3023-500
HFD3023-500-AAA
HFD3023-500-ABA
HFD3023-500-ADA
HFD3023-500-BAA
HFD3023-500-BBA
Description
5 Mb direct coupled receiver
5 Mb direct coupled receiver
(SMA single hole)
5 Mb direct coupled receiver
(SMA PCB mount)
5 Mb direct coupled receiver
(SMA 4 hole)
5 Mb direct coupled receiver
(ST single hole)
5 Mb direct coupled receiver
(ST PCB mount)
WARNING
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury.
Failure to comply with these instructions could result in
death or serious injury.
WARNING
MISUSE OF DOCUMENTATION
•
The information presented in this product sheet is for
reference only. Do not use this document as a product
installation guide.
•
Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result in
death or serious injury.
NOTICE
FIBER INTERFACE
Honeywell detectors are designed to interface with multimode
fibers with sizes (core/cladding diameters) ranging from 50/125
microns to 200/230 microns. Honeywell performs final tests
using 100/140 micron core fiber. The fiber chosen by the end
user will depend upon a number of application issues
(distance, link budget, cable attenuation, splice attenuation and
safety margin.) The 50/125 micron and 62.5/125 micron fibers
have the advantages of high bandwidth and low cost, making
them ideal for higher bandwidth installations. The use of
100/140 micron and 200/230 micron core fibers results in
greater power being coupled by the transmitter, making it
easier to splice or connect in bulkhead areas. Optical cables
can be purchased from a number of sources.
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship. Honeywell’s
standard product warranty applies unless agreed to otherwise
by Honeywell in writing; please refer to your order
acknowledgement or consult your local sales office for specific
warranty details. If warranted goods are returned to Honeywell
during the period of coverage, Honeywell will repair or replace,
at its option, without charge those items it finds defective.
The
foregoing is buyer’s sole remedy and is in lieu of all other
warranties, expressed or implied, including those of
merchantability and fitness for a particular purpose. In no
event shall Honeywell be liable for consequential, special,
or indirect damages.
While we provide application assistance personally, through
our literature and the Honeywell web site, it is up to the
customer to determine the suitability of the product in the
application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this
printing. However, we assume no responsibility for its use.
SALES AND SERVICE
Honeywell serves its customers through a worldwide network
of sales offices, representatives and distributors. For
application assistance, current specifications, pricing or name
of the nearest Authorized Distributor, contact your local sales
office or:
E-mail:
info.sc@honeywell.com
Internet:
www.honeywell.com/sensing
Phone and Fax:
Asia Pacific
+65 6355-2828
+65 6445-3033 Fax
Europe
+44 (0) 1698 481481
+44 (0) 1698 481676 Fax
Latin America +1-305-805-8188
+1-305-883-8257 Fax
USA/Canada +1-800-537-6945
+1-815-235-6847
+1-815-235-6545 Fax
Automation and Control Solutions
Sensing and Control
Honeywell
11 West Spring Street
Freeport, Illinois 61032
www.honeywell.com/sensing
006726-1-EN IL50 GLO Printed in USA
March 2005
© 2005 Honeywell International Inc.
Special Edition for Assessment Centres
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