HFBR-1506AFZ/HFBR-2506AFZ
Full Metal Fiber Optic SMA Transmitters and Receivers
for 16 MBd SERCOS Applications
Data Sheet
Description
SERCOS, an acronym for
SErial Realtime COmmunications
Systems,
is a standard digital interface for communica-
tion 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 im-
munity. The HFBR-1506AFZ and HFBR-2506AFZ products
have a guaranteed performance up to 16 MBd.
Features
RoHS-Compliant
Meets Industrial SERCOS 16MBd standard
SMA ports
650 nm wavelength
Metal housing and port
Specified for use with 1 mm POF and 200 μm HCS
DC - 16 MBd data rate
Applications
Industrial Control Data Links
Factory Automation Data Links
Voltage Isolation Applications
Specifications and content subject to change without prior notification.
Package Information
The RoHS-compliant transmitters and receivers are
housed in a metal package that is high strength. Both
the transmitter and receiver are built with metal hous-
ings and optical ports for excellence air discharge (ESD)
performance. The package is designed for auto insertion
and wave soldering so it is ideal for high volume produc-
tion applications.
Recommended Chemicals for Cleaning/Degreasing
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
Technologies 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 elec-
trostatic 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.
Table 1. Link Performance Specification
-40 °C to +85 °C unless otherwise noted.
Parameter
Link distance with HFBR-1506AFZ/2506AFZ
Symbol
I
Min
0.1
0.1
Max
45
100
Unit
mm
Condition
POF
HCS
Reference
Note 1, 2, 4, 6
Note 1, 3, 5, 6
Notes:
1. 60 mA nominal drive current.
2. POF HFBR-ExxyyyZ 0.23 dB/m worst case attenuation.
3. HCS Worst Case Attenuation is 10dB/km (0°Cto 70°C) and 12dB/km (-40°C to 85°C).
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 16 MBd.
2
Specifications and content subject to change without prior notification.
HFBR-1506AFZ Transmitter
The HFBR-1506AFZ transmitter incoporates a 650nm LED
in a metal housing. The high light output power enables
the use of both plastic optical fiber (POF) and Hard Clad
Silica (HCS). This transmitter can operate up to 16MBd
using a simple driver circuit. The HFBR-1506AFZ is com-
patible with SMA connectors.
4
5
6
7
PIN
1
4
5
6
7
8
FUNCTION
CONNECTED TO PIN 4
CONNECTED TO PIN 1
NC
NC
CATHODE
ANODE
1
8
BOTTOM VIEW,
HFBR-1506AFZ
SEE NOTE 6
Figure 1.
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
T
SOL
Min
-40
Max
+85
90
60
3
260
10
Unit
°C
mA
mA
V
°C
s
Notes
1
2, 3
Notes:
1. For I F_PK > 60 mA, the duty factor must maintain I F_AVG <= 60 mA and pulse width <= 1 μs.
2. 1.6 mm below seating plane.
3. Moisture sensitivity level (MSL) is 3
Electrical Characteristics Table
-40 °C to +85 °C 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
l
PK
FWHM
C
O
q
JC
t
r
t
f
Min
1.8
Typ
-0.02
2.1
-1.8
Max
2.65
Unit
dB/°C
V
mV/°C
V
Condition
I
F
,
dc
= 60 mA
Notes
Note 3
See Figure 2
See Figure 2
3.0
635
13
650
21
60
140
15
15
662
30
I
F
,
dc
= -10 μA
See Figure 4
See Figure 4
V
F
= 0 V, f = 1 MHz
Notes 4, 5
10% to 90%
I
F
= 60 mA
See Figure 6
See Figure 6
nm
nm
pF
°C/W
ns
ns
Notes:
3. Typical data are at +25 °C
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. 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 elecrical noise.
3
Specifications and content subject to change without prior notification.
Peak Output Power
-40 °C to +85 °C unless otherwise noted.
Model Number
HFBR-1506AFZ
Symbol
Pr
Min
-6.0
-18.0
Max
-2.0
-10.0
Unit
dBm
Condition
POF, I
F
,
dc
= 60 mA
HCS
®
, I
F
,
dc
= 60 mA
Reference
Note 7
Figure 3
Notes:
7. Optical power measured at the end of 1 meters of 1 mm diameter plastic or 200 μm hard/plastic clad silica optical fiber with a large area detec-
tor.
2.5
10
P
T
– NORMALIZED OUTPUT POWER – dB
-40 ˚C
-40 ˚C
0
NORMALIZED SPECTRAL OUTPUT POWER
1.4
1.2
-40 ˚C
2.3
0 ˚C
25 ˚C
70 ˚C
V
F
– FORWARD VOLTAGE – V
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
-20
1.9
85 ˚C
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 – nm
Figure 2. Typical Forward Voltage vs Drive Cur-
rent
Figure 3. Typical Normalized Optical Power vs
Drive Current
Figure 4. Typical Normalized Optical Spectra
Figure 5. Recommended drive circuit according to SERCOS An17 (I
fnom
~ 35 mA)
4
Specifications and content subject to change without prior notification.
HFBR-2506AFZ Receiver
The HFBR-2506AFZ receiver is housed in a metal pack-
age, consisting 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 opera-
tion from DC to 16MBd with low PWD for arbitrary data
patterns.
The receiver is a “push-pull” stage compatible with TTL
and CMOS logic. The HFBR-2506AFZ is compatible with
SMA connectors.
4
5
6
7
1
8
PIN
1
4
5
6
7
8
FUNCTION
CONNECTED TO PIN 4
CONNECTED TO PIN 1
NO CONNECT
VCC
GND
VO
BOTTOM VIEW,
HFBR-2506AFZ
SEE NOTE 4
Figure 6.
Absolute Maximum Ratings
Parameter
Storage and Operating Temperature
Supply Voltage
Average Output Current
Output Power Dissipation
Lead Soldering Cycle
Temp
Time
Symbol
T
S
,
O
V
CC
I
O
,
AVG
P
OD
T
SOL
T
SOL
Min
-40
-0.5
Max
+85
5.5
16
80
260
10
Unit
°C
V
mA
mW
°C
s
Notes
1, 5
Electrical Characteristics Table
-40 °C to +85 °C, 4.75 V < V
CC
< 5.25 V, V
P-P
Noise < = 100 mV unless otherwise noted.
Parameter
Peak Input Power Level Logic HIGH
Peak Input Power Level Logic LOW
Symbol
P
RH
P
RL
Min
Typ
Max
-42
-44
Unit
dBm
dBm
Condition
1 mm POF
200 μm HCS
1 mm POF
200 μm HCS
|PWD| < 19 ns
V
O
= Open
I
O
= 40 μA
I
O
= 1.6 mA
Notes
2
3
-20
-22
19
4.2
4.7
0.22
-19
-2
-10
45
Supply Current
High Level Output Voltage
Low Level Output Voltage
Pulse Width Distortion
Propagation Delay Time
I
CC
V
OH
V
OH
PWD
T
P_HL
or
_LH
mA
V
0.4
19
150
V
ns
ns
Notes:
1. 1.6 mm below seating plane.
2. Typical data are at +25 °C, V
CC
= 5.0 V
3. BER <= 10E
-9
, includes a 10.8 dB margin below the receiver switching threshold level (signal to noise ratio =12)
4. Pins 1 and 4 are electrically connected to the metal housing and are also used for mounting and retaining purposes. It is recommended that
pins 1 and 4 to be connected to ground to maintain housing shield effectiveness.
5. Moisture sensitivity level (MSL) is 3
5
Specifications and content subject to change without prior notification.
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