HFBR-1505AZ/2505AZ (SMA Tx/Rx for SERCOS)
HFBR-1515BZ/2515BZ (ST
®
Tx/Rx for PROFIBUS)
HFBR-1505CZ/2505CZ (SMA Tx/Rx for INTERBUS-S)
Fiber Optic Transmitters and Receivers
for SERCOS, PROFIBUS and INTERBUS-S Applications
Data Sheet
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-1505AZ and HFBR-2505AZ 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 to 12 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-1515BZ and HFBR-2515BZ
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-1505CZ and HFBR-2505CZ 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. The optical transmis-
sion 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.
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
RoHS-compliant
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 OFS Corporation.
Package Information
All HFBR-X5X5XZ 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.
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.
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.
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.
Specified Link Performance
-0C to +70C unless otherwise noted.
Parameter
Link Distance with
HFBR-1505AZ/2505AZ or
HFBR-1515BZ/2515BZ
Link Distance with
HFBR-1505CZ/2505CZ
Pulse Width Distortion
with HFBR-1505AZ/2505AZ
or HFBR-1515BZ/2515BZ
Pulse Width Distortion
with HFBR-1505CZ/2505CZ
Symbol
1
Min.
0.1
0.1
0.1
0.1
–30
Max.
40
200
50
400
+30
Unit
m
m
m
m
ns
Condition
POF
HCS
®
POF
HCS
®
25% to 75%
duty cycle
arbitrary duty cycle
Reference
Notes 1, 2, 3, 4, 6
Notes 1, 2, 3, 5, 6
Notes 1, 2, 3, 4, 7
Notes 1, 2, 3, 5, 7
Note 1
1
PWD
PWD
–125
+125
ns
Note 1
Notes:
1. With recommended Tx and Rx circuits (60 mA nominal drive current).
2. POF HFBR-ExxyyyZ 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.
2
HFBR-15X5XZ Transmitters
The HFBR-15X5XZ 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-1505XZ is compatible
with SMA connectors, while the HFBR-1515XZ mates
with ST
®
connectors.
4
5
6
7
1
8
BOTTOM VIEW,
HFBR-15x5xZ
SEE NOTE 10
PIN
1
4
5
6
7
8
FUNCTION
CONNECTED TO PIN 4
CONNECTED TO PIN 1
GND
GND
CATHODE
ANODE
Absolute Maximum Ratings
Parameter
Storage and Operating Temperature
Peak Forward Input Current
Average Forward Input Current
Reverse Input Voltage
Lead Soldering Cycle
Temp
Time
Symbol
T
S,O
I
F,PK
I
F,AVG
V
R
T
SOL
Min.
–40
Max.
85
90
60
3
260
10
Unit
°C
mA
mA
V
°C
s
Reference
Note 6
Note 7, 12
Electrical/Optical Characteristics
-0C to +70C unless otherwise noted.
Parameter
Optical Power Temperature
Coefficient
Forward Voltage
Forward Voltage
Temperature Coefficient
Breakdown Voltage
Peak Emission Wavelength
Full Width Half Max
Diode Capacitance
Thermal Resistance
Rise Time (10% to 90%)
Fall Time (90% to 10%)
Symbol
P
T
/T
V
F
V
F
/T
V
BR
PK
FWHM
C
O
JC
t
r
t
f
Min.
Typ.
[1]
–0.02
Max.
Unit
dB/˚C
Condition
Ref.
1.8
2.1
–1.8
2.65
V
mV/˚C
V
I
F, dc
= 60 mA
Fig. 1
Fig. 1
3.0
640
13
650
21
60
140
13
10
660
30
I
F, dc
= –10 μA
Fig. 3
Fig. 3
V
F
= 0 V, f = 1 MHz
Notes 4, 5
10% to 90%,
I
F
= 60 mA
nm
nm
pF
˚C/W
ns
ns
EYE SAFETY: The HFBR-15x5XZ 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.
3
Peak Output Power
-0C to +70C unless otherwise noted.
Model Number
HFBR-1505AZ SERCOS
Symbol
P
T
Min.
–10.5
–7.5
–18.0
Max.
–5.5
–3.5
–10
–5.5
–3.5
–8.5
0.0
–8.5
Unit
dBm
Condition
POF, I
F, dc
= 35 mA
POF, I
F, dc
= 60 mA
HCS
®
, I
F, dc
= 60 mA
POF, I
F, dc
= 35 mA
POF, I
F, dc
= 60 mA
HCS
®
, I
F, dc
= 60 mA
POF, I
F, dc
= 60 mA
HCS
®
, I
F, dc
= 60 mA
Reference
Notes 2, 3, 11
Figure 2
HFBR-1515BZ PROFIBUS
–10.5
–7.5
–18.0
Notes 2, 3, 11
Figure 2
HFBR-1505CZ INTERBUS-S
–6.2
–16.9
Notes 3, 8, 9
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 P
T
over temperature are based on a fixed drive current. The recommended drive circuit has temperature
compensation which reduces the variation in P
T
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 I
F,PK
> 60 mA, the duty factor must maintain I
F,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.
12. Moisture sensitivity level (MSL) is 3.
2.5
10
P
T
- NORMALIZED OUTPUT POWER - dB
-40 ˚C
NORMALIZED SPECTRAL OUTPUT POWER
-40 ˚C
1.4
1.2
-40 ˚C
V
F
- FORWARD VOLTAGE - V
2.3
0 ˚C
25 ˚C
70 ˚C
0
25 ˚C
0 ˚C
1.0
25 ˚C
0.8
0.6
0.4
0.2
0
610
630
650
670
690
70 ˚C
85 ˚C
2.1
-10
85 ˚C
1.9
85 ˚C
-20
1.7
-30
1.5
1
10
100
I
F,DO
- TRANSMITTER DRIVE CURRENT - mA
-40
1
10
100
I
F,DO
- TRANSMITTER DRIVE CURRENT - mA
WAVELENGTH Ð nm
Figure 1. Typical forward voltage vs. drive
current
Figure 2. Typical normalized optical power vs.
drive current
Figure 3. Typical normalized optical spectra
4
1.2
V
CC
= 5.25 V
2
1
1.1
NORMALIZED OUTPUT POWER
V
CC
= 5.0 V
V
CC
= 5.25 V
0
PWD - ns
1.0
V
CC
= 5.0 V
-1
-2
-3
V
CC
= 4.75 V
-4
0.9
V
CC
= 4.75 V
0.8
0.7
-40
-20
0
20
40
60
80
-5
-40
-20
0
20
40
60
80
TEMPERATURE - ˚C
TEMPERATURE - ˚C
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)
Recommended Drive Circuit for HFBR-x505AZ/x515BZ
TTL COMPATIBLE TRANSMITTER
TTL COMPATIBLE RECEIVER
+5 V V
CC
C1
10 µF
+
R1
C2
0.1 µF
1
8
7
6
5
4
8
U1
1
2
TTL INPUT
4
0V
DS75451
3
U2
HFBR-15X5XZ
HFBR-25X5XZ
U3
4
5
6
7
8
1
TTL OUTPUT
C4
0.1 µF
0V
R2
2.7
+5 V V
CC
R1
82.5
Ω
47
Ω
I
F
35 mA
60 mA
Figure 6. Recommended transmitter and receiver drive circuit (I
F, on
= 35 mA or 60 mA nominal at T
A
= 25˚C)
5
Analog electronics
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