HFBR-0400Z, HFBR-14xxZ and HFBR-24xxZ Series
Low Cost, Miniature Fiber Optic Components
with ST®, SMA, SC and FC Ports
Data Sheet
Description
The HFBR-0400Z Series of components is designed to
provide cost effective, high performance fiber optic
communication links for information systems and
industrial applications with link distances of up to 2.7
kilometers. With the HFBR-24x6Z, the 125 MHz analog
receiver, data rates of up to 160 megabaud are
attainable.
Transmitters and receivers are directly compatible with
popular “industry-standard” connectors: ST®, SMA, SC
and FC. They are completely specified with multiple
fiber sizes; including 50/125 µm, 62.5/125 µm, 100/
140 µm, and 200 µm.
The HFBR-14x4Z high power transmitter and HFBR24x6Z 125 MHz receiver pair up to provide a duplex
solution optimized for 100 Base-SX. 100Base-SX is a
Fast Ethernet Standard (100 Mbps) at 850 nm on
multimode fiber.
Complete evaluation kits are available for ST product
offerings; including transmitter, receiver, connectored
cable, and technical literature. In addition, ST
connectored cables are available for evaluation.
Features
• RoHS Compliant
• Meets IEEE 802.3 Ethernet and 802.5 Token Ring
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Applications
• 100Base-SX Fast Ethernet on 850 nm
• Media/fiber conversion, switches, routers, hubs and
•
•
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•
•
•
•
•
ST® is a registered trademark of AT&T.
HCS® is a registered trademark of the OFS Corporation.
Standards
Meets TIA/EIA-785 100Base-SX standard
Low Cost Transmitters and Receivers
Choice of ST®, SMA, SC or FC Ports
820 nm Wavelength Technology
Signal Rates up to 160 MBd
Link Distances up to 2.7 km
Compatible with 50/125 µm, 62.5/125 µm, 100/140
µm, and 200 µm HCS® Fiber
Repeatable ST Connections within 0.2 dB Typical
Unique Optical Port Design for Efficient Coupling
Auto-Insertable and Wave Solderable
No Board Mounting Hardware Required
Wide Operating Temperature Range -40 °C to +85 °C
AlGaAs Emitters 100% Burn-In Ensures High Reliability
Conductive Port Option
NICs on 100Base-SX
Local Area Networks
Computer to Peripheral Links
Computer Monitor Links
Digital Cross Connect Links
Central Office Switch/PBX Links
Video Links
Modems and Multiplexers
Suitable for Tempest Systems
Industrial Control Links
HFBR-0400Z Series Part Number Guide
HFBR-x4xxaa Z
1
Transmitter
2
Receiver
4
RoHS Compliant
820 nm Transmitter and Receiver
products
0
SMA, housed
1
ST, housed
2
FC, housed
E
SC, housed
T
Threaded port option
C
Conductive port receiver option
M
Metal port option
2
TX, stadnard power
4
TX, high power
2
RX, 5 MBd, TTL output
5
TX, high light output power
6
RX, 125 MHz, Analog Output
Available Options
HFBR-1402Z
HFBR-1414Z
HFBR-1412TMZ
HFBR-2406Z
HFBR-2412Z
HFBR-2416TZ
HFBR-1404Z
HFBR-1414MZ
HFBR-14E4Z
HFBR-2412TCZ
HFBR-2412TZ
HFBR-2416TCZ
HFBR-1412Z
HFBR-1414TZ
HFBR-1415Z
HFBR-2416Z
HFBR-2422Z
HFBR-1412TZ
HFBR-1424Z
HFBR-2402Z
HFBR-2416MZ
HFBR-24E6Z
Link Selection Guide
Data rate (MBd)
Distance (m)
Transmitter
Receiver
Fiber Size (µm)
Evaluation Kit
5
1500
HFBR-14x2Z
HFBR-24x2Z
200 HCS
N/A
5
2000
HFBR-14x4Z/14x5Z
HFBR-24x2Z
62.5/125
HFBR-0410Z
20
2700
HFBR-14x4Z/14x5Z
HFBR-24x6Z
62.5/125
HFBR-0414Z
32
2200
HFBR-14x4Z/14x5Z
HFBR-24x6Z
62.5/125
HFBR-0414Z
55
1400
HFBR-14x4Z/14x5Z
HFBR-24x6Z
62.5/125
HFBR-0414Z
125
700
HFBR-14x4Z/14x5Z
HFBR-24x6Z
62.5/125
HFBR-0416Z
155
600
HFBR-14x4Z/14x5Z
HFBR-24x6Z
62.5/125
HFBR-0416Z
160
500
HFBR-14x4Z/14x5Z
HFBR-24x6Z
62.5/125
HFBR-0416Z
For additional information on specific links see the following individual link descriptions. Distances measured over temperature range from 0 to +70 °C.
The HFBR-1415Z can be used for increased power budget or for lower driving current for the same Data-Rates and Link-Distances.
2
Applications Support Guide
This section gives the designer information necessary
to use the HFBR-0400Z series components to make a
functional fiber optic transceiver.
Avago Technologies offers a wide selection of
evaluation kits for hands-on experience with fiber optic
products as well as a wide range of application notes
complete with circuit diagrams and board layouts.
Furthermore, Avago Technologies application support
group is always ready to assist with any design
consideration.
Application Literature
Title
Description
HFBR-0400Z Series Reliability Data
Transmitter & Receiver Reliability Data
Application Bulletin 78
Low Cost Fiber Optic Links for Digital Applications up to 155 MBd
Application Note 1038
Complete Fiber Solutions for IEEE 802.3 FOIRL, 10Base-FB and 10Base-FL
Application Note 1065
Complete Solutions for IEEE 802.5J Fiberoptic Token Ring
Application Note 1073
HFBR-0219 Test Fixture for 1x9 Fiber Optic Transceivers
Application Note 1086
Optical Fiber Interconnections in Telecommunication Products
Application Note 1121
DC to 32 MBd Fiberoptic Solutions
Application Note 1122
2 to 70 MBd Fiberoptic Solutions
Application Note 1123
20 to 160 MBd Fiberoptic Solutions
Application Note 1137
Generic Printed Circuit Layout Rules
Application Note 1383
Cost Effective Fiber and Media Conversion for 100Base-SX
3
HFBR-0400Z Series Evaluation Kits
Package and Handling Information
HFBR-0410Z ST Evaluation Kit
Package Information
Contains the following:
All HFBR-0400Z Series transmitters and receivers are
housed in a low-cost, dual-inline package that is made
of high strength, heat resistant, chemically resistant,
and UL 94V-O flame retardant ULTEM® plastic (UL File
#E121562). The transmitters are easily identified by the
light grey color connector port. The receivers are easily
identified by the dark grey color connector port. (Black
color for conductive port). The package is designed
for auto-insertion and wave soldering so it is ideal for
high volume production applications.
• One HFBR-1412Z transmitter
• One HFBR-2412Z five megabaud TTL receiver
• Three meters of ST connectored 62.5/125 µm fiber
optic cable with low cost plastic ferrules.
• Related literature
HFBR-0414Z ST Evaluation Kit
Includes additional components to interface to the
transmitter and receiver as well as the PCB to reduce
design time. Contains the following:
• One HFBR-1414TZ transmitter
• One HFBR-2416TZ receiver
• Three meters of ST connectored 62.5/125 µm fiber
•
•
•
•
•
•
optic cable
Printed circuit board
ML-4622 CP Data Quantizer
74ACTllOOON LED Driver
LT1016CN8 Comparator
4.7 µH Inductor
Related literature
HFBR-0400Z SMA Evaluation Kit
Contains the following:
• One HFBR-1402Z transmitter
• One HFBR-2402Z five megabaud TTL receiver
• Two meters of SMA connectored 1000 µm plastic
•
optical fiber
Related literature
HFBR-0416Z Evaluation Kit
Contains the following:
• One fully assembled 1x9 transceiver board for 155
•
MBd evaluation including:
- HFBR-1414Z transmitter
- HFBR-2416Z receiver
- circuitry
Related literature
Ultem® is a registered Trademark of the GE corporation.
4
Handling and Design Information
Each part comes with a protective port cap or plug
covering the optics. These caps/plugs will vary by port
style. 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
HFBR-0400Z 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 Technologies does not recommend the
use of cleaners that use halogenated hydrocarbons
because of their potential environmental harm.
Mechanical Dimensions - SMA Port
HFBR-x40xZ
12.7
(0.50)
Rx/Tx
COUNTRY OF
ORIGIN
A YYWW
HFBR-X40XZ
1/4 - 36 UNS 2A THREAD
22.2
(0.87)
6.35
(0.25)
12.7
(0.50)
6.4
(0.25) DIA.
3.81
(0.15)
10.2
(0.40)
5
2.54
(0.10)
1
PINS 2,3,6,7
0.46 DIA.
(0.018)
8
2
7
6
4
5.1
(0.20)
1.27
(0.05)
2.54
(0.10)
3
PINS 1,4,5,8
0.51 X 0.38
(0.020 X 0.015)
3.6
(0.14)
PIN NO. 1
INDICATOR
Mechanical Dimensions - ST Port
12.7
(0.50)
Rx/Tx
COUNTRY OF
ORIGIN
A YYWW
HFBR-X41XZ
HFBR-x41xZ
8.2
(0.32)
27.2
(1.07)
6.35
(0.25)
12.7
(0.50)
7.0 DIA.
(0.28)
3.81
(0.15)
5
6
4
8
1
PINS 2,3,6,7
0.46 DIA.
(0.018)
PIN NO. 1
INDICATOR
5
5.1
(0.20)
1.27
(0.05)
2.54
(0.10)
2
7
3
PINS 1,4,5,8
0.51 X 0.38
(0.020 X 0.015)
2.54
(0.10)
3.6
(0.14)
10.2
(0.40)
Mechanical Dimensions - Threaded ST Port
HFBR-x41xTZ
Rx/Tx
COUNTRY OF
ORIGIN
A YYWW
HFBR-X41XTZ
5.1
(0.20)
12.7
(0.50)
8.4
(0.33)
27.2
(1.07)
7.6
(0.30)
6.35
(0.25)
12.7
(0.50)
7.1 DIA.
(0.28)
3.6
(0.14)
5.1
(0.20)
3/8 - 32 UNEF - 2A
3.81
(0.15)
1.27
(0.05)
2.54 DIA.
(0.10)
6
5
2.54
(0.10)
1
PINS 2,3,6,7
0.46 DIA.
(0.018)
8
2
7
3
4
PINS 1,4,5,8
0.51 X 0.38
(0.020 X 0.015)
PIN NO. 1
INDICATOR
Mechanical Dimensions - FC Port
HFBR-x42xZ
12.7
(0.50)
Rx/Tx
COUNTRY OF
ORIGIN
A YYWW
HFBR-X42XZ
M8 x 0.75 6G
THREAD (METRIC)
19.6
(0.77)
12.7
(0.50)
7.9
(0.31)
3.81
(0.15)
2.5
(0.10)
6
5
6
8
1
2
7
3
4
2.5
(0.10)
PIN NO. 1
INDICATOR
3.6
(0.14)
5.1
(0.20)
10.2
(0.40)
10.2
(0.40)
Mechanical Dimensions - SC Port
Rx/Tx
COUNTRY OF
ORIGIN
A YYWW
HFBR-X4EXZ
HFBR-x4ExZ
28.65
(1.128)
6.35
(0.25)
12.7
(0.50)
10.0
(0.394)
5.1
(0.200)
15.95
(0.628)
3.81
(0.15)
1.27
(0.050)
2.54
(0.10)
2.54
(0.100)
12.7
(0.500)
7
10.38
(0.409)
3.60
(0.140)
LED OR DETECTOR IC
LENS–SPHERE
(ON TRANSMITTERS ONLY)
HOUSING
LENS–WINDOW
CONNECTOR PORT
HEADER
EPOXY BACKFILL
PORT GROUNDING PATH INSERT
Figure 1. HFBR-0400Z ST Series Cross-Sectional View.
Panel Mount Hardware
HFBR-4401Z: for SMA Ports
HFBR-4411Z: for ST Ports
1/4 - 36 UNEF 2B THREAD
PART
NUMBER
3/8 - 32 UNEF 2B THREAD
0.2 IN.
7.87 DIA.
(0.310)
HEX-NUT
12.70 DIA.
(0.50)
1.65
(0.065)
HEX-NUT
14.27 TYP.
(0.563) DIA.
10.41 MAX.
(0.410) DIA.
0.14
(0.005)
WASHER
WASHER
(Each HFBR-4401Z and HFBR-4411Z kit consists of 100 nuts and 100 washers).
Port Cap Hardware
HFBR-4402Z: 500 SMA Port Caps
HFBR-4120Z: 500 ST Port Plugs (120 psi)
8
1.65
(0.065)
3/8 - 32 UNEF 2A THREADING
1 THREAD
AVAILABLE
7.87 TYP.
(0.310) DIA.
6.61
DIA.
(0.260)
Rx/Tx
COUNTRY OF
ORIGIN
A YYWW
HFBR-X40XZ
DATE CODE
0.46
(0.018)
WALL
WASHER
NUT
Options
In addition to the various port styles available for the
HFBR- 0400Z series products, there are also several
extra options that can be ordered. To order an option,
simply place the corresponding option number at the
end of the part number. See page 2 for available
options.
Option T (Threaded Port Option)
• Allows ST style port components to be panel
mounted.
• Compatible with all current makes of ST® multimode
connectors
• Mechanical dimensions are compliant with MIL-STD83522/13
• Maximum wall thickness when using nuts and
washers from the HFBR-4411Z hardware kit is 2.8
mm (0.11 inch)
Available on all ST ports
•
Option C (Conductive Port Receiver Option)
• Designed to withstand electrostatic discharge (ESD)
of 25 kV to the port
• Significantly reduces effect of electromagnetic
interference (EMI) on receiver sensitivity
• Allows designer to separate the signal and
conductive port grounds
• Recommended for use in noisy environments
• Available on SMA and threaded ST port style
receivers only
Option M (Metal Port Option)
• Nickel plated aluminum connector receptacle
• Designed to withstand electrostatic discharge (ESD)
of 15 kV to the port
• Significantly reduces effect of electromagnetic
interference (EMI) on receiver sensitivity
• Allows designer to separate the signal and metal
port grounds
9
Typical Link Data
HFBR-0400Z Series
Description
The following technical data is taken from 4 popular
links using the HFBR-0400Z series: the 5 MBd link,
Ethernet 20 MBd link, Token Ring 32 MBd link, and the
corresponds to transceiver solutions combining the
HFBR-0400Z series components and various
recommended transceiver design circuits using off-theshelf electrical components. This data is meant to be
regarded as an example of typical link performance
for a given design and does not call out any link
limitations. Please refer to the appropriate application
note given for each link to obtain more information.
5 MBd Link (HFBR-14xxZ/24x2Z)
Link Performance -40 °C to +85 °C unless otherwise specified
Parameter
Symbol
Min.
Typ.
Optical Power Budget
with 50/125 µm fiber
OPB50
4.2
Optical Power Budget
with 62.5/125 µm fiber
OPB62.5
Optical Power Budget
with 100/140 µm fiber
Optical Power Budget
with 200 µm fiber
Max.
Units
Conditions
Reference
9.6
dB
HFBR-14x4Z/24x2Z
NA = 0.2
Note 1
8.0
15
dB
HFBR-14x4Z/24x2Z
NA = 0.27
Note 1
OPB100
8.0
15
dB
HFBR-14x2Z/24x2Z
NA = 0.30
Note 1
OPB200
12
20
dB
HFBR-14x2Z/24x2Z
NA = 0.37
Note 1
Date Rate Synchronous
dc
5
MBd
Note 2
Asynchronous
dc
2.5
MBd
Note 3,
Fig 7
Propagation Delay
LOW to HIGH
tPLH
72
ns
Propagation Delay
HIGH to LOW
tPHL
46
ns
System Pulse Width
Distortion
tPLH - tPHL
26
ns
Bit Error Rate
BER
10-9
TA = +25 °C
PR = -21 dBm peak
Figs 6, 7, 8
Fiber cable length = 1 m
Data rate -24 dBm peak
Notes:
1. OPB at TA = -40 to +85 °C, VCC = 5.0 V dc, IF ON = 60 mA. PR = -24 dBm peak.
2. Synchronous data rate limit is based on these assumptions: a) 50% duty factor modulation, e.g., Manchester I or BiPhase Manchester II; b)
continuous data; c) PLL Phase Lock Loop demodulation; d) TTL threshold.
3. Asynchronous data rate limit is based on these assumptions: a) NRZ data; b) arbitrary timing-no duty factor restriction; c) TTL threshold.
10
5 MBd Logic Link Design
If resistor R1 in Figure 2 is 70.4 Ω, a forward current IF
of 48 mA is applied to the HFBR-14x4Z LED transmitter.
With IF = 48 mA the HFBR-14x4Z/24x2Z logic link is
guaranteed to work with 62.5/125 µm fiber optic cable
over the entire range of 0 to 1750 meters at a data
rate of dc to 5 MBd, with arbitrary data format and
pulse width distortion typically less than 25%. By
setting R1 = 115 Ω, the transmitter can be driven with
IF = 30 mA, if it is desired to economize on power or
achieve lower pulse distortion.
The following example will illustrate the technique for
selecting the appropriate value of IF and R1.
Maximum distance required = 400 meters. From Figure
3 the drive current should be 15 mA. From the
transmitter data VF = 1.5 V (max.) at IF = 15 mA as
shown in Figure 9.
The curves in Figures 3, 4, and 5 are constructed
assuming no inline splice or any additional system loss.
Should the link consists of any in-line splices, these
curves can still be used to calculate link limits provided
they are shifted by the additional system loss expressed
in dB. For example, Figure 3 indicates that with 48 mA
of transmitter drive current, a 1.75 km link distance is
achievable with 62.5/125 µm fiber which has a
maximum attenuation of 4 dB/km. With 2 dB of
additional system loss, a 1.25 km link distance is still
achievable.
R1 = VCC − VF = 5V − 1.5V
IF
15 mA
R1 = 233 Ω
TTL DATA OUT
+5 V
SELECT R1 TO SET IF
IF
R
1
1K
HFBR-14xxZ
TRANSMITTER
2
6
7
3
HFBR-24x2Z
RECEIVER
2
T
R
6
7&3
DATA IN
½ 75451
TRANSMISSION
DISTANCE =
NOTE:
IT IS ESSENTIAL THAT A BYPASS CAPACITOR (0.01 µF TO 0.1 µF
CERAMIC) BE CONNECTED FROM PIN 2 TO PIN 7 OF THE RECEIVER.
TOTAL LEAD LENGTH BETWEEN BOTH ENDS OF THE CAPACITOR
AND THE PINS SHOULD NOT EXCEED 20 MM.
Figure 2. Typical Circuit Configuration.
11
RL
VCC
0.1 µF
40
-3
30
-4
TYPICAL +25 ˚C
UNDERDRIVE
-5
20
-6
-7
-8
10
CABLE ATTENUATION
MAX (-40 ˚C, +85 ˚C)
MIN (-40 ˚C, +85 ˚C)
TYP (+25 ˚C)
-9
-10
-11
0
dB/km
4
1.5
2.8
2
6
4
LINK LENGTH (km)
Figure 3. HFBR-1414Z/HFBR-2412Z Link Design Limits with 62.5/
125 µm Cable.
WORST CASE
-40˚C, +85˚C
UNDERDRIVE
-2
50
TYPICAL 26˚C
UNDERDRIVE
-3
40
30
-4
CABLE ATTENUATION
α MAX (-40˚C, +85˚C)
α MIN (-40˚C, +85˚C)
α TYP (-40˚C, +85˚C)
-5
dB/km
4
1
2.8
-6
0
0.4
0.8
1.2
1.6
2
20
OVERDRIVE
60
50
WORST CASE
-40 ˚C, +85 ˚C
UNDERDRIVE
40
-3
30
-4
TYPICAL +25 ˚C
UNDERDRIVE
-5
20
-6
-7
-8
10
dB/km
5.5
1.0
3.3
CABLE ATTENUATION
MAX (-40 ˚C, +85 ˚C)
MIN (-40 ˚C, +85 ˚C)
TYP (+25 ˚C)
-9
-11
0
1
2
3
6
4
LINK LENGTH (km)
Figure 4. HFBR-14x2Z/HFBR-24x2Z Link Design Limits with 100/
140 µm Cable.
75
LINK LENGTH (km)
70
t PLH OR t PHL PROPOGATION DELAY –ns
-1
-2
-10
60
I F – TRANSMITTER FORWARD CURRENT – (mA)
10 LOG (t/to) NORMALIZED TRANSMITTER CURRENT (dB)
0
0
-1
IF TRANSMITTER FORWARD CURRENT (mA)
-2
10LOG(I/Io) NORMALIZED TRANSMITTER CURRENT
(dB)
60
50
WORST CASE
-40 ˚C, +85 ˚C
UNDERDRIVE
OVERDRIVE
IF TRANSMITTER FORWARD CURRENT (mA)
10LOG(I/Io) NORMALIZED TRANSMITTER CURRENT
(dB)
0
-1
65
t PLH (TYP) @ 25˚C
60
55
50
45
40
t PHL (TYP) @ 25˚C
35
30
25
20
-22 -21 -20 -19 -18 -17 -16 -15 -14 -13 -12
P R – RECEIVER POWER – dBm
Figure 5. HFBR-14x4Z/HFBR-24x2Z Link Design Limits with 50/
125 µm Cable.
55
tD – NRZ DISTORTION – ns
50
45
40
35
30
25
20
-22 -21 -20 -19 -18 -17 -16 -15 -14 -13 -12
P R – RECEIVER POWER – dBm
Figure 7. Typical Distortion of Pseudo Random Data at 5 Mb/s.
12
Figure 6. Propagation Delay through System with One Meter of
Cable.
PULSE
GEN
+15 V
½ 75451
RS
1N4150
2, 6, 7
RESISTOR VALUE AS NEEDED FOR
SETTING OPTICAL POWER OUTPUT
FROM RECEIVER END OF TEST CABLE
INPUT
IF
3
PULSE REPETITION
FREQ = 1 MHz
100 ns
100 ns
50%
10 W
tPHLT
tPHLT
IF 10 W
TRANSMITTER
INPUT (IF)
PT - FROM 1-METER
TEST CABLE
+5 V
2
RL
560
OUTPUT
+
VO
15 pF
6
0.1 µF
7&3
PT 50%
TIMING
ANALYSIS
EQUIPMENT
eg. SCOPE
tPHL
MAX
VO
tPHL
MAX
tPHL
MIN
tPHL
MIN
5V
1.5 V
0
HFBR-2412Z RECEIVER
Figure 8. System Propagation Delay Test Circuit and Waveform Timing Definitions.
Ethernet 20 MBd Link (HFBR-14x4Z/24x6Z)
(refer to Application Note 1038 for details)
Typical Link Performance
Parameter
Symbol
Typ [1, 2]
Units
Conditions
Receiver Sensitivity
-34.4
dBm average
20 MBd D2D2 hexadecimal data
2 km 62.5/125 µm fiber
Link Jitter
7.56
7.03
ns pk-pk
ns pk-pk
ECL Out Receiver
TTL Out Receiver
Transmitter Jitter
0.763
ns pk-pk
20 MBd D2D2 hexadecimal data
Optical Power
PT
-15.2
dBm average
20 MBd D2D2 hexadecimal data
Peak IF,ON = 60 mA
LED Rise Time
tr
1.30
ns
1 MHz square wave input
LED Fall Time
tf
3.08
ns
Mean Difference
|tr - tf|
1.77
ns
Bit Error Rate
BER
10
-10
Output Eye Opening
36.7
ns
Data Format 50% Duty Factor
20
MBd
Notes:
1. Typical data at TA = +25 °C, VCC = 5.0 V dc.
2. Typical performance of circuits shown in Figure 1 and Figure 3 of AN-1038 (see applications support section).
13
At AUI receiver output
Token Ring 32 MBd Link (HFBR-14x4Z/24x6Z)
(refer to Application Note 1065 for details)
Typical Link Performance
Parameter
Symbol
Typ [1, 2]
Units
Conditions
Receiver Sensitivity
-34.1
dBm average
32 MBd D2D2 hexadecimal data
2 km 62.5/125 µm fiber
Link Jitter
6.91
5.52
ns pk-pk
ns pk-pk
ECL Out Receiver
TTL Out Receiver
Transmitter Jitter
0.823
ns pk-pk
32 MBd D2D2 hexadecimal data
dBm peak
Transmitter TTL in IF ON = 60 mA,
IF OFF = 1 mA
1 MHz square wave input
Optical Power Logic Level "0"
PT ON
-12.2
Optical Power Logic Level "1"
PT OFF
-82.2
LED Rise Time
tr
1.3
ns
LED Fall Time
tf
3.08
ns
Mean Difference
|tr - tf|
1.77
ns
Bit Error Rate
BER
10-10
Data Format 50% Duty Factor
32
MBd
Notes:
1. Typical data at TA = +25 °C, VCC = 5.0 V dc.
2. Typical performance of circuits shown in Figure 1 and Figure 3 of AN-1065 (see applications support section)
155 MBd Link (HFBR-14x4Z/24x6Z)
(refer to Application Bulletin 78 for details)
Typical Link Performance
Parameter
Symbol
Min
Typ [1, 2]
Optical Power Budget with
50/125 µm fiber
OPB50
7.9
Optical Power Budget with
62.5/125 µm fiber
OPB62
Optical Power Budget with
100/140 µm fiber
Optical Power Budget with
200 µm HCS fiber
Units
Conditions
Ref
13.9
dB
NA = 0.2
Note 2
11.7
17.7
dB
NA = 0.27
OPB100
11.7
17.7
dB
NA = 0.30
OPB200
16.0
22.0
dB
NA = 0.35
Data Format 20% to 80% Duty
Factor
1
Max
175
System Pulse Width Distortion
|tPLH - tPHL|
1
Bit Error Rate
BER
10-9
MBd
ns
PR = -7 dBm peak
1 m 62.5/125 µm fiber
Data rate < 100 MBaud
PR > -31 dBm peak
Note 2
Notes:
1. Typical data at TA = +25 °C, VCC = 5.0 V dc, PECL serial interface.
2. Typical OPB was determined at a probability of error (BER) of 10-9. Lower probabilities of error can be achieved with short fibers that have less
optical loss.
14
HFBR-14x2Z/14x4Z Low-Cost High-Speed Transmitters
Description
Housed Product
ANODE
CATHODE
The HFBR-14xxZ fiber optic transmitter contains an 820
nm AlGaAs emitter capable of efficiently launching
optical power into four different optical fiber sizes: 50/
125 µm, 62.5/125 µm, 100/140 µm, and 200 µm HCS®.
This allows the designer flexibility in choosing the fiber
size. The HFBR-14xxZ is designed to operate with the
Avago Technologies HFBR-24xxZ fiber optic receivers.
The HFBR-14xxZ transmitter’s high coupling efficiency
allows the emitter to be driven at low current levels
resulting in low power consumption and increased
reliability of the transmitter. The HFBR-14x4Z high
power transmitter is optimized for small size fiber and
typically can launch -15.8 dBm optical power at 60 mA
into 50/125 µm fiber and -12 dBm into 62.5/125 µm
fiber. The HFBR-14x2Z standard transmitter typically
can launch -12 dBm of optical power at 60 mA into
100/140 µm fiber cable. It is ideal for large size fiber
such as 100/140 µm. The high launched optical power
level is useful for systems where star couplers, taps, or
inline connectors create large fixed losses.
PIN
11
2
32
41
51
6
72
81
2, 6, 7
3
4
3
2
1
5
6
7
8
BOTTOM VIEW
FUNCTION
NC
ANODE
CATHODE
NC
NC
ANODE
ANODE
NC
NOTES:
1. PINS 1, 4, 5 AND 8
ARE ELECTICALLY
CONNECTED.
PIN 1 INDICATOR 2. PINS 2, 6 AND 7 ARE
ELECTRICALLY CONNECTED
TO THE HEADER.
Unhoused Product
1
4
2
3
PIN
1
2
3
4
FUNCTION
ANODE
CATHODE
ANODE
ANODE
BOTTOM VIEW
Consistent coupling efficiency is assured by the doublelens optical system (Figure 1). Power coupled into any
of the three fiber types varies less than 5 dB from part
to part at a given drive current and temperature.
Consistent coupling efficiency reduces receiver
dynamic range requirements which allows for longer
link lengths.
Regulatory Compliance - Targeted Specifications
Feature
Test Method
Performance
Electrostatic Discharge (ESD)
MIL-STD-883 Method 3015
Class 1B (>500, 100 mA, the time duration should not exceed 2 ns.
2. Typical data at TA = +25 °C.
3. Thermal resistance is measured with the transmitter coupled to a connector assembly and mounted on a printed circuit board.
4. D is measured at the plane of the fiber face and defines a diameter where the optical power density is within 10 dB of the maximum.
5. PT is measured with a large area detector at the end of 1 meter of mode stripped cable, with an ST® precision ceramic ferrule (MILSTD- 83522/13)
for HFBR-1412Z/1414Z, and with an SMA 905 precision ceramic ferrule for HFBR-1402Z/1404Z.
6. When changing mW to dBm, the optical power is referenced to 1 mW (1000 mW). Optical Power P (dBm) = 10 log P (mW)/1000 mW.
7. Pre-bias is recommended if signal rate >10 MBd, see recommended drive circuit in Figure 11.
8. Pins 2, 6 and 7 are welded to the anode header connection to minimize the thermal resistance from junction to ambient. To further reduce the
thermal resistance, the anode trace should be made as large as is consistent with good RF circuit design.
9. Fiber NA is measured at the end of 2 meters of mode stripped fiber, using the far-field pattern. NA is defined as the sine of the half angle, determined
at 5% of the peak intensity point. When using other manufacturer’s fiber cable, results will vary due to differing NA values and specification
methods.
17
All HFBR-14XXZ LED transmitters are classified as IEC 825-1 Accessible Emission Limit (AEL) Class 1 based upon the current
proposed draft scheduled to go in to effect on January 1, 1997. AEL Class 1 LED devices are considered eye safe. Contact
your Avago Technologies sales representative for more information.
CAUTION: The small junction sizes inherent to the design of these components increase 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.
Recommended Drive Circuits
The circuit used to supply current to the LED
transmitter can significantly influence the optical
switching characteristics of the LED. The optical rise/
fall times and propagation delays can be improved by
using the appropriate circuit techniques. The LED drive
circuit shown in Figure 11 uses frequency
compensation to reduce the typical rise/fall times of
the LED and a small pre-bias voltage to minimize
propagation delay differences that cause pulse-width
distortion. The circuit will typically produce rise/fall
(VCC − VF ) + 3.97(V CC − VF − 1.6V)
IF ON (A)
times of 3 ns, and a total jitter including pulse-width
distortion of less than 1 ns. This circuit is recommended
for applications requiring low edge jitter or high-speed
data transmission at signal rates of up to 155 MBd.
Component values for this circuit can be calculated for
different LED drive currents using the equations shown
below. For additional details about LED drive circuits,
the reader is encouraged to read Avago Technologies
Application Bulletin 78 and Application Note 1038.
RY =
(5 − 1.84) + 3.97(5 − 1.84 − 1.6)
0.100
1 RY
RX1 =
2 3.97
RY =
3.16 + 6.19
= 93.5 Ω
0.100
REQ2 ( Ω) = RX1 − 1
1 93.5
RX1 =
= 11.8 Ω
2 3.97
RY
RX2 = RX3 = RX4 = 3(R EQ2 )
REQ2 = 11.8 - 1 = 10.8 Ω
2000 ps
C(pF) =
RX1( Ω)
RX2 = RX3 = RX4 = 3 (10.8) = 32.4 Ω
Example for IF ON = 100mA :
VF can be obtained from Figure 9 ( = 1.84 V).
C=
18
2000 ps
= 169 pF
11.8 Ω
2.0
+25 ˚C
60
-40 ˚C
40
20
10
1.2
1.4
1.8
1.6
2.0
2.2
3.0
1.8
1.6
2.0
1.4
1.2
1.4
1.0
0.8
1.0
0
0.8
-1.0
0.6
-2.0
-3.0
-4.0
-5.0
-7.0
0.4
0.2
0
0 10 20 30 40 50 60 70 80 90 100
IF – FORWARD CURRENT – mA
P(I F ) – P(60 mA) – RELATIVE POWER RATIO – dB
+85 ˚C
80
P(I F ) – P(60 mA) – RELATIVE POWER RATIO
IF - FORWARD CURRENT - mA
100
VI - FORWARD VOLTAGE - V
Figure 9. Forward Voltage and Current Characteristics.
Figure 10. Normalized Transmitter Output vs. Forward Current.
+5 V
+
2
¼
74F3037
4.7 µF
Ry
12, 13
3
1
0.1 µF
15
16
RX2
RX1
RX3
C
14
4, 5
¼ 74F3037
10
9
11
¼ 74F3037
8
HFBR-14x2Z/x4Z
5
RX4
7
¼ 74F3037
Figure 11. Recommended Drive Circuit.
HP8082A
PULSE
GENERATOR
SILICON
AVALANCHE
PHOTODIODE
50 Ω
LOAD
RESISTOR
Figure 12. Test Circuit for Measuring tr, tf.
19
50 Ω
TEST
HEAD
HIGH SPEED
OSCILLOSCOPE
HFBR-24x2Z Low-Cost 5 MBd Receiver
Housed Product
Description
2
6
The HFBR-24x2Z fiber optic receiver is designed to
operate with the Avago Technologies HFBR-14xxZ fiber
optic transmitter and 50/125 µm, 62.5/125 µm, 100/
140 µm, and 200 µm HCS® fiber optic cable. Consistent
coupling into the receiver is assured by the lensed
optical system (Figure 1). Response does not vary with
fiber size ≤ 0.100 µm.
7&3
4
3
2
1
The HFBR-24x2Z receiver incorporates an integrated
photo IC containing a photodetector and dc amplifier
driving an opencollector Schottky output transistor.
The HFBR-24x2Z is designed for direct interfacing to
popular logic families. The absence of an internal pullup resistor allows the open-collector output to be used
with logic families such as CMOS requiring voltage
excursions much higher than VCC.
COMMON
5
6
7
8
BOTTOM VIEW
PIN
11
2
32
41
51
6
72
81
Vcc
DATA
PIN 1 INDICATOR
FUNCTION
NC
V CC (5 V)
COMMON
NC
NC
DATA
COMMON
NC
NOTES:
1. PINS 1, 4, 5 AND 8 ARE ELECTRICALLY CONNECTED
2. PINS 3 AND 7 ARE ELECTRICALLY CONNECTED TO HEADER
Unhoused Product
Both the open-collector “Data” output Pin 6 and VCC
Pin 2 are referenced to “Com” Pin 3, 7. The “Data”
output allows busing, strobing and wired “OR” circuit
configurations. The transmitter is designed to operate
from a single +5 V supply. It is essential that a bypass
capacitor (0.1 mF ceramic) be connected from Pin 2
(VCC) to Pin 3 (circuit common) of the receiver.
1
4
2
3
PIN
1
2
3
4
FUNCTION
VCC (5 V)
COMMON
DATA
COMMON
BOTTOM VIEW
Absolute Maximum Ratings
Parameter
Symbol
Min
Max
Units
Storage Temperature
TS
-55
+85
°C
Operating
Temperature
TA
-40
+85
°C
+260
10
°C
sec
7.0
V
25
mA
18.0
V
mW
Lead Soldering Cycle
Temp
Time
Note 1
-0.5
Supply Voltage
VCC
Output Current
IO
Output Voltage
VO
Output Collector
Power Dissipation
PO AV
40
Fan Out (TTL)
N
5
20
Reference
-0.5
Note 2
Electrical/Optical Characteristics -40 °C to + 85 °C unless otherwise specified
Fiber sizes with core diameter ≤ 100 µm and NA ≤ 0.35, 4.75 V ≤ VCC ≤ 5.25 V
Typ3
Max
Units
Conditions
IOH
5
250
µA
VO = 18
PR < -40 dBm
Low Level Output Voltage
VOL
0.4
0.5
V
IO = 8 mA
PR > -24 dBm
High Level Supply Current
ICCH
3.5
6.3
mA
VCC = 5.25 V
PR < -40 dBm
Low Level Supply Current
ICCL
6.2
10
mA
VCC = 5.25 V
PR > -24 dBm
Equivalent NA
NA
0.50
Optical Port Diameter
D
400
Parameter
Symbol
High Level Output Current
Min
µm
Reference
Note 4
Dynamic Characteristics
-40 °C to +85 °C unless otherwise specified; 4.75 V ≤ VCC ≤ 5.25 V; BER ≤ 10-9
Parameter
Symbol
Peak Optical Input Power Logic Level HIGH
PRH
Peak Optical Input Power Logic Level LOW
PRL
Min
Typ3
Max
Units
Conditions
Reference
-40
0.1
dBm pk
µW pk
l P = 820 nm
Note 5
-25.4
2.9
-9.2
120
dBm pk
µW pk
TA = +25 °C,
IOL = 8mA
Note 5
-24.0
4.0
-10.0
100
dBm pk
µW pk
IOL = 8mA
TA = +25 °C,
PR = -21 dBm,
Data Rate =
5 MBd
Propagation Delay LOW to HIGH
tPLHR
65
ns
Propagation Delay HIGH to LOW
tPHLR
49
ns
Note 6
Notes:
1. 2.0 mm from where leads enter case.
2. 8 mA load (5 x 1.6 mA), RL = 560 Ω.
3. Typical data at TA = +25 °C, VCC = 5.0 Vdc.
4. D is the effective diameter of the detector image on the plane of the fiber face. The numerical value is the product of the actual detector diameter
and the lens magnification.
5. Measured at the end of 100/140 µm fiber optic cable with large area detector.
6. Propagation delay through the system is the result of several sequentially-occurring phenomena. Consequently it is a combination of data-ratelimiting effects and of transmission-time effects. Because of this, the data-rate limit of the system must be described in terms of time differentials
between delays imposed on falling and rising edges.
7. As the cable length is increased, the propagation delays increase at 5 ns per meter of length. Data rate, as limited by pulse width distortion, is not
affected by increasing cable length if the optical power level at the receiver is maintained.
CAUTION: The small junction sizes inherent to the design of these components increase 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.
21
HFBR-24x6Z Low-Cost 125 MHz Receiver
Description
The HFBR-24x6Z fiber optic receiver is designed to
operate with the Avago Technologies HFBR-14xxZ fiber
optic transmitters and 50/ 125 µm, 62.5/125 µm, 100/
140 µm and 200 µm HCS® fiber optic cable. Consistent
coupling into the receiver is assured by the lensed
optical system (Figure 1). Response does not vary with
fiber size for core diameters of 100 µm or less.
The receiver output is an analog signal which allows
follow-on circuitry to be optimized for a variety of
distance/data rate requirements. Low-cost external
components can be used to convert the analog output
to logic compatible signal levels for various data
formats and data rates up to 175 MBd. This distance/
data rate trade-off results in increased optical power
budget at lower data rates which can be used for
additional distance or splices.
The HFBR-24x6Z receiver contains a PIN photodiode
and low noise transimpedance preamplifier integrated
circuit. The HFBR-24x6Z receives an optical signal and
converts it to an analog voltage. The output is a
buffered emitter follower. Because the signal amplitude
from the HFBR-24x6Z receiver is much larger than from
a simple PIN photodiode, it is less susceptible to EMI,
especially at high signaling rates. For very noisy
environments, the conductive or metal port option is
recommended. A receiver dynamic range of 23 dB over
temperature is achievable (assuming 10-9 BER).
The frequency response is typically dc to 125 MHz.
Although the HFBR-24x6Z is an analog receiver, it is
compatible with digital systems. Please refer to
Application Bulletin 78 for simple and inexpensive
circuits that operate at 155 MBd or higher.
The recommended ac coupled receiver circuit is shown
in Figure 14. It is essential that a 10 ohm resistor be
connected between pin 6 and the power supply, and
a 0.1 mF ceramic bypass capacitor be connected
between the power supply and ground. In addition,
pin 6 should be filtered to protect the receiver from
noisy host systems. Refer to AN 1038, 1065, or AB 78
for details.
Housed Product
6
Vcc
2
ANALOG SIGNAL
3&7V
EE
4
3
2
1
5
6
7
8
BOTTOM VIEW
PIN
11
2
32
41
51
6
72
81
6
BIAS & FILTER
CIRCUITS
VCC
POSITIVE
SUPPLY
PIN 1 INDICATOR
FUNCTION
NC
SIGNAL
VEE
NC
NC
VCC
VEE
NC
NOTES:
1. PINS 1, 4, 5 AND 8 ARE ISOLATED FROM THE INTERNAL
CIRCUITRY, BUT ARE ELECTRICALLY CONNECTED TO EACH
OTHER.
2. PINS 3 AND 7 ARE ELECTRICALLY CONNECTED TO HEADER
300 pF
Unhoused Product
2
ANALOG
VOUT SIGNAL
1
4
5.0
mA
2
3
PIN
1
2
3
4
FUNCTION
SIGNAL
VEE
VCC
VEE
3, 7
VEE
NEGATIVE
SUPPLY
BOTTOM VIEW
Figure 13. Simplified Schematic Diagram.
CAUTION: The small junction sizes inherent to the design of these components increase 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.
22
Absolute Maximum Ratings
Parameter
Symbol
Min
Max
Units
Storage Temperature
TS
-55
+85
°C
Operating
Temperature
TA
-40
+85
°C
+260
10
°C
sec
6.0
V
25
mA
VCC
V
Reference
Note 1
Lead Soldering Cycle
Temp
Time
Supply Voltage
VCC
Output Current
IO
Signal Pin Voltage
VSIG
-0.5
-0.5
Electrical/Optical Characteristics -40 °C to +85 °C; 4.75 V ≤ Supply Voltage ≤ 5.25 V,
RLOAD = 511 Ω, Fiber sizes with core diameter ≤ 100 µm, and N.A. ≤ -0.35 unless otherwise specified.
Parameter
Symbol
Min
Typ2
Max
Units
Conditions
Reference
Responsivity
RP
5.3
7
9.6
mV/µW
Note 3, 4
Figure 18
11.5
mV/µW
TA = +25 °C @ 820
nm, 50 MHz
@ 820 nm, 50 MHz
0.59
mV
Note 5
0.70
mV
Bandwidth filtered
@ 75 MHz
PR = 0 µW
Unfiltered
bandwidth
PR = 0 µW
-41.4
0.065
dBm
µW
Bandwidth Filtered
@ 75MHz
-7.6
175
dBm pk
µW pk
TA = +25 °C
-8.2
150
dBm pk
µW pk
4.5
RMS Output Noise Voltage
VNO
Equivalent Input Optical Noise Power
(RMS)
PN
Optical Input Power (Overdrive)
PR
Output Impedance
ZO
dc Output Voltage
VO dc
Power Supply Current
0.40
-43.0
0.050
30
-4.2
W
Test Frequency =
50 MHz
-3.1
-2.4
V
PR = 0 µW
IEE
9
15
mA
RLOAD = 510 W
Equivalent NA
NA
0.35
Equivalent Diameter
D
324
µm
Figure 15
Note 6
Figure 16
Note 7
CAUTION: The small junction sizes inherent to the design of these components increase 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.
23
Dynamic Characteristics
-40 °C to +85 °C; 4.75 V ≤ Supply Voltage ≤ 5.25 V; RLOAD = 511 Ω, CLOAD = 5 pF unless otherwise specified
Typ2
Max
Units
Conditions
Reference
tr, tf
3.3
6.3
ns
PR = 100 µW peak
Figure 17
PWD
0.4
2.5
ns
PR = 150 µW peak
Note 8,
Figure 16
2
%
PR = 5 µW peak,
tr = 1.5 ns
Note 9
125
MHz
-3 dB Electrical
0.41
Hz • s
Note 10
Parameter
Symbol
Rise/Fall Time 10% to 90%
Pulse Width Distortion
Min
Overshoot
Bandwidth (Electrical)
BW
Bandwidth - Rise Time Product
Notes:
1. 2.0 mm from where leads enter case.
2. Typical specifications are for operation at TA = +25 °C and VCC = +5 V dc.
3. For 200 µm HCS fibers, typical responsivity will be 6 mV/mW. Other parameters will change as well.
4. Pin #2 should be ac coupled to a load ³ 510 ohm. Load capacitance must be less than 5 pF.
5. Measured with a 3 pole Bessel filter with a 75 MHz, -3 dB bandwidth. Recommended receiver filters for various bandwidths are provided in
Application Bulletin 78.
6. Overdrive is defined at PWD = 2.5 ns.
7. D is the effective diameter of the detector image on the plane of the fiber face. The numerical value is the product of the actual detector diameter
and the lens magnification.
8. Measured with a 10 ns pulse width, 50% duty cycle, at the 50% amplitude point of the waveform.
9. Percent overshoot is defined as:
VPK − V100%
x 100%
V100%
10. The conversion factor for the rise time to bandwidth is 0.41 since the HFBR-24x6Z has a second order bandwidth limiting characteristic.
0.1 µF
+5 V
10 Ω
6
30 pF
2
3&7
POST
AMP
LOGIC
OUTPUT
R LOADS
500 Ω MIN.
Figure 14. Recommended ac Coupled Receiver Circuit. (See AB 78 and AN 1038 for more information.)
CAUTION: The small junction sizes inherent to the design of these components increase 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.
24
3.0
PWD – PULSE WIDTH DISTORTION – ns
SPECTRAL NOISE DENSITY – nV/ H Z
150
125
100
75
50
25
0
2.5
2.0
1.5
1.0
0.5
0
0
50
100
150
200
250
0
300
FREQUENCY – MH Z
5.0
1.00
NORMALIZED RESPONSE
t r, t f – RESPONSE TIME – ns
1.25
4.0
tf
tr
2.0
1.0
-40
-20
0
20
40
60
80
100
TEMPERATURE – ˚C
Figure 17. Typical Rise and Fall Times vs. Temperature.
25
30
40
50
70
60
80
Figure 16. Typical Pulse Width Distortion vs. Peak Input Power.
6.0
-60
20
P R – INPUT OPTICAL POWER – µW
Figure 15. Typical Spectral Noise Density vs. Frequency.
3.0
10
0.75
0.50
0.25
0
400
480
560
640
720
800
880
960
1040
λ – WAVELENGTH – nm
Figure 18. Receiver Spectral Response Normalized to 820 nm.
For product information and a complete list of distributors, please go to our web site: www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Limited in the United States and other countries.
Data subject to change. Copyright © 2007 Avago Technologies Limited. All rights reserved. Obsoletes AV01-0264EN
AV02-0176EN - March 14, 2007
26
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