Features
•Meets industrial SERCOS, PROFIBUS, and INTERBUS-S
standard
•SMA and ST® ports
•650 nm wavelength technology
•Specified for use with 1 mm plastic optical fiber and
200 µm hard clad silica
•Auto-insertable and wave solderable
•DC – 10 MBd data rate
Applications
•Industrial control data links
•Factory automation data links
•Voltage isolation applications
•PLCs
•Motor drives
•Sensor, meter and actuator interfaces
ST® is a registered trademark of AT&T.
HCS® is a registered trademark of SpecTran Corporation.
Description
SERCOS
SERCOS, an acronym for SErial Realtime
COmmunications System, is a standard digital
interface for communication in industrial CNC
applications. SERCOS is a European (EN 61491) and
international standard (IEC 61491). The optical
interface allows data rates of 2, 4, 8, and 16 MBd and
data transfer between numerical controls and drives
via fiber-optic rings, with voltage isolation and noise
immunity. The HFBR-1505A and HFBR-2505A products
comply with SERCOS specifications for optical
characteristics and connector style, and have
guaranteed performance up to 10 MBd. (Typically the
16 MBd required by SERCOS is possible as well but
please contact Avago regarding the plan for the 16 MBd
device.)
PROFIBUS
PROFIBUS, an acronym of PROcess FIeld BUS, is an
open fieldbus standard defined for data rates ranging
from 9.6 kBd to12 MBd in selectable steps for wire and
optical fiber. PROFIBUS is a German national DIN
19245 standard and a European CENELEC standard
EN 50170. The ST® connector is the recommended
optical port of the PROFIBUS optical fiber version but
other connectors are allowed as well. The HFBR-1515B
and HFBR-2515B comply fully to the technical guideline
using Plastic Optical Fiber up to 6 MBd, and have a
guaranteed performance at data rates up to 10 MBd.
(Typically the 12 MBd is possible as well, but please
contact Avago regarding the plan for the 12 MBd device.)
INTERBUS-S
INTERBUS-S, a special open Sensor/Actuator Bus, is
finding a broad acceptance in the factory automation
industry. The HFBR-1505C and HFBR-2505C were
specially designed for this application and can be used
with 1 mm POF and 200 µm HCS fiber at the specified
data rates of 500 kBd and 2 MBd.
HFBR-1505A/2505A
Fiber Optic Transmitters and Rec eivers for
Fieldbus Applications
Data Sheet
HFBR-1505A/2505A (SMA Tx/Rx for SERCOS)
HFBR-1515B/2515B (ST® Tx/Rx for PROFIBUS)
HFBR-1505C/2505C (SMA Tx/Rx for INTERBUS-S)
2
Notes:
1. With recommended Tx and Rx circuits (60 mA nominal drive current).
2. POF HFBR-Exxyyy 0.23 dB/m worst case attentuation.
3. HCS® 10 dB/km worst case attenuation.
4. Including a 3 dB optical safety margin accounting for link service lifetime.
5. Including a 2 dB optical safety margin accounting for link service lifetime.
6. Signaling rate DC to 10 MBd.
7. Signaling rate DC to 2 MBd.
The optical transmission
guideline is a supplement of the
German National DIN E 19258
standard draft. On the European
level, prEN 50254 is the draft of
the INTERBUS-S fieldbus.
Package Information
All HFBR-X5X5X series
transmitters and receivers are
housed in a low-cost, dual-in-line
package that is made of high
strength, heat resistant,
chemically resistant and UL 94
V-O (UL file # E121562) flame
retardant plastic. The
transmitters are easily identified
by the light grey colored
connector port. The receivers are
easily identified by the dark grey
colored connector port. The
package is designed for auto-
insertion and wave soldering so it
is ideal for high volume production
applications.
Handling and Design Information
When soldering, it is advisable to
leave the protective cap on the unit
to keep the optics clean. Good
system performance requires clean
port optics and cable ferrules to
avoid obstructing the optical path.
Clean compressed air often is
sufficient to remove particles of
dirt; methanol on a cotton swab
also works well.
Recommended Chemicals for
Cleaning/Degreasing X5X5X Products
Alcohols: methyl, isopropyl,
isobutyl.
Aliphatics: hexane, heptane.
Other: soap solution, naphtha.
Do not use partially halogenated
hydrocarbons such as
1,1,1 trichloroethane, ketones
such as MEK, acetone,
chloroform, ethyl acetate,
methylene dichloride, phenol,
methylene chloride or
N-methylpyrolldone. Also, Avago
does not recommend the use of
cleaners that use halogenated
hydrocarbons because of their
potential environmental harm.
Specified Link Performance
0˚C to +70˚C unless otherwise noted.
Parameter Symbol Min. Max. Unit Condition Reference
Link Distance with 1 0.1 40 m POF Notes 1,2,3,4,6
HFBR-1505A/2505A or 0.1 200 m HCS®Notes 1,2,3,5,6
HFBR-1515B/2515B
Link Distance with 1 0.1 50 m POF Notes 1,2,3,4,7
HFBR-1505C/2505C 0.1 400 m HCS®Notes 1,2,3,5,7
Pulse Width Distortion PWD –30 +30 ns 25% to 75% Note 1
with HFBR-1505A/2505A duty cycle
or HFBR-1515B/2515B
Pulse Width Distortion PWD –125 +125 ns arbitrary duty cycle Note 1
with HFBR-1505C/2505C
CAUTION: The small junction size inherent in the design of these components increases the
components’ susceptibility to damage from electrostatic discharge (ESD). It is advised that normal
static precautions be taken in handling and assembly of these components to prevent damage and/or
degradation which may be induced by ESD.
3
PIN FUNCTION
1
4
5
6
7
8
CONNECTED TO PIN 4
CONNECTED TO PIN 1
GND
GND
CATHODE
ANODE
5
6
7
8
4
1
BOTTOM VIEW,
HFBR-15x5x
SEE NOTE 10
HFBR-15X5X Transmitters
The HFBR-15X5X transmitter
incorporates a 650 nm LED in a
light gray nonconductive plastic
housing. The high light output
power enables the use of both
plastic optical fiber (POF) and
Hard Clad Silica (HCS®). This
transmitter can be operated up to
10 MBd using a simple driver
circuit. The HFBR-1505X is
compatible with SMA connectors,
while the HFBR-1515X mates with
ST® connectors.
Electrical/Optical Characteristics
0˚C to +70˚C unless otherwise noted.
Parameter Symbol Min. Typ.[1] Max. Unit Condition Ref.
Optical Power ∆PT/∆T–0.02 dB/˚C
Temperature
Coefficient
Forward Voltage VF1.8 2.1 2.65 V IF, dc = 60 mA Fig. 1
Forward Voltage ∆VF/∆T–1.8 mV/˚C Fig. 1
Temperature
Coefficient
Breakdown Voltage VBR 3.0 13 V IF, dc = –10 µA
Peak Emission λPK 640 650 660 nm Fig. 3
Wavelength
Full Width Half Max FWHM 21 30 nm Fig. 3
Diode Capacitance CO60 pF VF = 0 V, f = 1 MHz
Thermal Resistance θJC 140 ˚C/W Notes 4,5
Rise Time (10% to 90%) tr13 ns 10% to 90%,
Fall Time (90% to 10%) tf10 ns IF = 60 mA
EYE SAFETY: The HFBR-15x5x is a Class 1 LED Product and eye safe when used within the data
sheet limits and under normal operating conditions. This includes all reasonably foreseeable
single fault conditions per IEC60825-1 and amendments.
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit Reference
Storage and Operating Temperature TS,O –40 85 ˚C
Peak Forward Input Current IF,PK 90 mA Note 6
Average Forward Input Current IF,AVG 60 mA
Reverse Input Voltage VR3V
Lead Soldering Cycle Temp TSOL 260 ˚C Note 7
Time 10 s
4
Figure 1. Typical forward voltage vs. drive
current. Figure 2. Typical normalized optical power vs.
drive current. Figure 3. Typical normalized optical spectra.
2.5
110100
I
F,DO
– TRANSMITTER DRIVE CURRENT – mA
V
F
– FORWARD VOLTAGE – V
2.3
2.1
1.9
1.7
1.5
-40 °C
0 °C
25 °C
70 °C
85 °C
10
110100
I
F,DO
– TRANSMITTER DRIVE CURRENT – mA
P
T
– NORMALIZED OUTPUT POWER – dB
0
-10
-20
-30
-40
-40 °C
25 °C
85 °C
1.4
610 650 690
WAVELENGTH – nm
NORMALIZED SPECTRAL OUTPUT POWER
1.2
0.8
0.4
0.2
0
-40 °C
0 °C
630 670
0.6
1.0 25 °C
70 °C
85 °C
Peak Output Power
0˚C to +70˚C unless otherwise noted.
Model Number Symbol Min. Max. Unit Condition Reference
HFBR-1505A PT–10.5 –5.5 dBm POF, IF, dc = 35 mA Notes 2,3,11
SERCOS –7.5 –3.5 POF, IF, dc = 60 mA Figure 2
–18.0 –10 HCS®, IF, dc = 60 mA
HFBR-1515B –10.5 –5.5 POF, IF, dc = 35 mA Notes 2,3,11
PROFIBUS –7.5 –3.5 POF, IF, dc = 60 mA Figure 2
–18.0 –8.5 HCS®, IF, dc = 60 mA
HFBR-1505C –6.2 0.0 POF, IF, dc = 60 mA Notes 3,8,9
INTERBUS-S –16.9 –8.5 HCS®, IF, dc = 60 mA Figure 2
Notes:
1. Typical data at 25˚C.
2. Optical power measured at the end of 0.5 meters of 1 mm diameter plastic optical fiber with a large area detector.
3. Minimum and maximum values for PT over temperature are based on a fixed drive current. The recommended drive circuit has temperature
compensation which reduces the variation in PT over temperature, refer to Figures 4 and 6.
4. Thermal resistance is measured with the transmitter coupled to a connector assembly and fiber, and mounted on a printed circuit board.
5. To further reduce the thermal resistance, the cathode trace should be made as large as is consistent with good RF circuit design.
6. For IF,PK > 60 mA, the duty factor must maintain IF,AVG ≤ 60 mA and pulse width ≤ 1 µs.
7. 1.6 mm below seating plane.
8. Minimum peak output power at 25˚C is –5.3 dBm (POF) and –16.0 dBm (HCS®) for 1505C series only.
9. Optical power measured at the end of 1 meter of 1 mm diameter plastic or 200 µm hard clad silica optical fiber with a large area detector.
10. Pins 1 and 4 are for mounting and retaining purposes, but are electrically connected; pins 5 and 6 are electrically isolated. It is recommended that
pins 1, 4, 5, and 6 all be connected to ground to reduce coupling of electrical noise.
11. Output power with 200 µm hard clad silica optical fiber assumes a typical –10.5 dB difference compared to 1 mm plastic optical fiber.
5
Figure 4. Typical normalized optical power vs.
temperature (in recommended drive circuit). Figure 5. Typical optical pulse width distortion
vs. temperature and power supply voltage (in
recommended drive circuit).
1.2
-40 -20 0 20 40 60 80
TEMPERATURE – °C
NORMALIZED OUTPUT POWER
1.1
1.0
0.9
0.8
0.7
V
CC
= 5.0 V
V
CC
= 5.25 V
V
CC
= 4.75 V
2
-40 -20 0 20 40 60 80
TEMPERATURE – °C
PWD – ns
1
-1
-2
-4
-5
V
CC
= 5.0 V
V
CC
= 4.75 V
-3
0V
CC
= 5.25 V
Recommended Drive Circuit for HFBR-x505A/x515B
Figure 6. Recommended transmitter and receiver drive circuit (IF, on = 35 mA or 60 mA nominal at TA = 25˚C).
8
7
6
5
1
4
U2
HFBR-15X5 5
6
7
8
4
1
U3
HFBR-25X5
R2
2.7
C4
0.1 µF
+5 V VCC
0 V
TTL OUTPUT
8
2
1
3
4
+5 V VCC
0 V
TTL INPUT
R1
C1
10 µF
C2
0.1 µF
U1
DS75451
TTL COMPATIBLE TRANSMITTER TTL COMPATIBLE RECEIVER
R1 IF
82.5 Ω35 mA
47 Ω60 mA
+
6
5
6
7
8
4
1
BOTTOM VIEW,
HFBR 25x5A/B
SEE NOTE 4
PIN FUNCTION
1
4
5
6
7
8
CONNECTED TO PIN 4
CONNECTED TO PIN 1
NO CONNECT
V
CC
GND
V
O
HFBR-25x5A/B Receivers
The HFBR-25x5A/B receiver
consists of a silicon PIN
photodiode and digitizing IC to
produce a logic compatible
output. The IC includes a unique
circuit to correct the pulse width
distortion of the first bit after a
long idle period. This enables
operation from DC to 10 MBd
with low PWD for arbitrary data
patterns. The receiver output is a
“push–pull” stage compatible with
TTL and CMOS logic. The receiver
housing is a dark grey, conductive
plastic. The HFBR-2505A is
compatible with SMA connectors,
while the HFBR-2515B mates with
ST® connectors.
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit Reference
Storage and Operating Temperature TS–40 85 ˚C
Supply Voltage VCC –0.5 +5.5 V
Average Output Current IO,AVG –16 +16 mA
Output Power Dissipation POD 80 mW
Lead Soldering Cycle Temp 260 ˚C Note 2
Time 10 s
Electrical/Optical Characteristics
0˚C to +70˚C, 4.75 V < VCC < 5.25 V, VP–P Noise ≤100 mV unless otherwise noted.
Parameter Symbol Min. Typ.[1] Max. Unit Condition Ref.
Peak Input Power PRH –42 dBm 1mm POFNotes 3,5
Level Logic HIGH –44 200 µm HCS®
Peak Input Power PRL –20 –0 dBm 1 mm POF, Note 3
Level Logic LOW –22 –2 200 µm HCS®Figs. 7,8,
|PWD| < 30 ns 9,10
Supply Current ICC 27 45 mA VO = Open
High Level Output VOH 4.2 4.7 V IO = –40 µA
Voltage
Low Level Output VOH 0.22 0.4 V IO = +1.6 mA
Voltage
Output Rise Time tr12 30 ns CL = 10 pFNote 3
Output Fall Time tf10 30 ns CL = 10 pF Note 3
Notes:
1. Typical data are at 25˚C, VCC = 5.0 V.
2. 1.6 mm below seating plane.
3. In recommended receiver circuit, with an optical signal from the recommended transmitter circuit.
4. Pins 1 and 4 are electrically connected to the conductive housing and are also used for mounting and retaining purposes. It is required that pin 1
and 4 be connected to ground to maintain conductive housing shield effectiveness.
5. BER ≤10E-9, includes a 10.8 dB margin below the receiver switching threshold level (signal to noise ratio = 12).
7
Figure 7. Typical POF receiver overdrive PRL,max at
10 MBd vs. temperature and power supply voltage. Figure 8. Typical POF receiver pulse width distortion
vs. optical power at 10 MBd.
Figure 9. Typical POF receiver pulse width distortion vs.
power supply voltage at high optical power, (0 dBm, 10
MBd).
6
-40 -20 0 20 40 60 100
TEMPERATURE – °C
RECEIVED POWER – dBm
5
4
3
1
0
VCC = 5.0 V
VCC = 5.25 V
VCC = 4.75 V
2
80
30
-22 -18 -14 -10 -5 2
P
PL
– RECEIVER OPTICAL INPUT POWER – dBm
RECEIVED PWD – ns
20
10
0
-20
-30
-10
-2
Figure 10. Typical POF receiver pulse width distortion vs.
power supply voltage at low optical power, (-21 dBm, 10
MBd).
-13
4.7 4.9 5.0 5.1 5.3 5.5
VCC – VOLTS
PWD – ns
-14
-15
-17
-18
-16
5.4
4.8 5.2
16
4.7 4.9 5.0 5.1 5.3 5.5
VCC – VOLTS
PWD – ns
15
14
13
10
9
12
5.4
11
4.8 5.2
8
5
6
7
8
4
1
BOTTOM VIEW,
HFBR 2505C
SEE NOTE 3
HFBR-2505C Receiver
The HFBR-2505C receiver
includes a monolithic DC coupled,
digital IC receiver with open
collector Schottky output
transistor. An internal pullup
resistor to VCC is available at
PIN FUNCTION
1
4
5
6
7
8
CONNECTED TO PIN 4
CONNECTED TO PIN 1
R
L
V
CC
GND
V
O
pin 5. The receiver housing is a
dark gray conductive plastic and
the optical port is compatible with
SMA connectors. The speci-fied
signal rate of HFBR-2505C
is 2 MBd.
Absolute Maximum Ratings
Parameter Symbol Min. Max. Units Reference
Storage & Operating Temperatures TS, O –40 +85 °C
Lead Soldering Cycle Temp. 260 °CNote 1
Time 10 sec
Supply Voltage VCC –0.5 7 V Note 2
Output Collector Current IOAV 25 mA
Output Collector Power Dissipation POD 40 mW
Output Voltage VO–0.5 18 V
Pull-up Voltage VP–5 VCC V
Fan Out (TTL) N 5
Notes:
1. 1.6 mm below seating plane.
2. It is essential that a bypass capacitor 0.1 µF be connected from pin 6 to pin 7 of the receiver. Total lead length between both ends of the capacitor
and the pins should not exceed 20 mm.
3. Pins 1 and 4 are electrically connected to the conductive housing and are also used for mounting and retaining purposes. It is required that pin 1 and
4 be connected to ground to maintain conductive housing shield effectiveness.
9
8
7
6
5
1
4HFBR-1505C
5
6
7
8
4
1
HFBR-2505C
C4
0.1 µF
+5 V V
CC
0 V
TTL OUTPUT
8
2
1
3
4
+5 V V
CC
0 V
TTL INPUT
R1
C1
10 µF
C2
0.1 µF
U1
DS75451
TTL COMPATIBLE TRANSMITTER TTL COMPATIBLE RECEIVER
R1 I
F
82.5 Ω35 mA
47 Ω60 mA
+
R1 = (V
CC
– V
F
)
/
I
F
I
F
V
F
Figure 11. Typical interface circuit.
Receiver Electrical/Optical Characteristics
0°C to 70°C, 4.75 V ≤VCC ≤5.25 V unless otherwise specified
Parameter Symbol Min. Typ. Max. Units Conditions Ref.
Input Optical Power PR(L) –21.6 –2.0 dBm VOL = 0.5 V Notes 1,
Level for Logic “0” IOL = 8 mA 2
1 mm POF
–23.0 VOL = 0.5 V
IOL = 8 mA
200 µm HCS
Input Optical Power PR(H) –43 dBm VOL = 5.25 V Note 1
Level for Logic “1” IOH ≤250 µA
High Level Output Current IOH 5250 µAV
O = 18 V, PR = 0 Note 3
Low Level Output Current VOL 0.4 0.5 V IOL = 8 mA, Note 3
PR = PR(L)MIN
High Level Supply ICCH 3.5 6.3 mA VCC = 5.25 V, Note 3
Current PR = 0
Low Level Supply Current ICCL 6.2 10 mA VCC = 5.25 V Note 3
PR = -12.5 dBm
Effective Diameter D 1 mm
Numerical Aperture NA 0.5
Internal Pull-up Resistor RL680 1000 1700 Ω
Notes:
1. Optical flux, P (dBm) = 10 Log [P (µW)/1000 µW].
2. Measured at the end of the fiber optic cable with large area detector.
3. RL is open.
7.0
(0.28)
6.3
(0.25)
5.1
(0.20)
2.5
(0.10)
2.8
(0.11)
1.3
(0.05)
21.2
(0.83)
YYWW
HFBR-XXXX
PART NUMBERDATE
CODE
12.5
(0.49)
3.8
(0.150)
1.3
(0.050)
7.6
(0.30) 4.8
(0.19)
∅1.5
(0.06)
PINS 5, 6, 7, 8 ARE 0.5 (0.020) X 0.25 (0.01)
5
6
7
8
4
1
PINS 1, 4 ARE 0.6 (0.025) DIA.
1.3
(0.05)
1.0
(0.04) 3.6
(0.140)
5
6
7
8
4
1
6.3
(0.25)
3.8
(0.150)
1.3
(0.050)
6.4
(0.250)DIA.
12.5
(0.49)
5.1
(0.20)
2.5
(0.10)
1/4 - 36 UNS 2A THREAD
YYWW
HFBR-XXXX
2.8
(0.11)
PART NUMBERDATE
CODE
16.1
(0.63)
7.6
(0.30)
PINS 5, 6, 7, 8 ARE 0.5 (0.020) X 0.25 (0.01)
PINS 1, 4 ARE 0.6 (0.025) DIA.
1.3
(0.05)
1.0
(0.04) 3.6
(0.140)
Mechanical Dimensions
HFBR-X515X
HFBR-X505X
10
For product information and a complete list of distributors, please go to our website: www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Pte. in the United States and other countries.
Data subject to change. Copyright © 2006 Avago Technologies Pte. All rights reserved. Obsoletes 5966-3153E
5988-1764EN April 10, 2006
