Agilent HFBR-53B3EM/HFBR-53B3FM
5 V 1 x 9 Fiber Optic Transceivers for
Gigabit Ethernet (GbE) and Fibre
Channel (FC)
Data Sheet
Features
• Compliant with ANSI X3.297-1996
Fibre Channel Physical Interface
FC-PH-2 revision 7.4 proposed
specification for 100-M5-SN-I and
100-M6-SN-I signal interfaces
• Compliant with IEEE-802.3z Gigabit
Ethernet specifications
• 300 m links in 62.5/125 mm MMF
cables
• 500 m links in 50/125 mm MMF
cables
• Wave solder and aqueous wash
process compatible
• Industry standard mezzanine
height 1 x 9 package style with
integral duplex SC connector
• IEC 60825-1 Class 1/CDRH Class I
laser eye safe
• Single +5 V power supply operation
with PECL compatible logic
interfaces and TTL Signal Detect
• AC/DC Couple
Applications
• Switch to switch interface
• Switched backbone applications
• Mass storage systems I/O
• Computer systems I/O
• High-speed peripheral interface
• High-speed switching systems
• Computer systems I/O
Related Products
• Physical layer ICs available for
optical or copper interface
(HDMP-1636A/1646A)
• Versions of this transceiver module
also available for +5 V operation
(HFBR-53A5V/53A3V)
• MT-RJ SFF fiber optic transceivers
for GbE and FC (HFBR-5912E/5912E)
• Gigabit Interface Converters (GBIC)
for GbE and FC (HFBR-5601/5602)
Description
The HFBR-53B3EM/FM
transceivers from Agilent allow
the system designer to implement
a range of solutions for multimode
GbE and FC applications.
The overall Agilent transceiver
product consists of three sections:
the transmitter and receiver optical
subassemblies, an electrical
subassembly, and the package
housing which incorporates a
duplex SC connector receptacle.
Transmitter Section
The transmitter section of the
HFBR-53B3EM/FM consists of an
850 nm Vertical Cavity Surface
Emitting Laser (VCSEL) in an
Optical Subassembly (OSA), which
mates to the fiber cable. The OSA
is driven by a custom, silicon
bipolar IC which converts
differential PECL compatible logic
signals into an analog laser diode
drive current. The high speed
output lines are internally ac-
coupled and differentially
terminated with a 100
W
resistor.
Receiver Section
The receiver of the
HFBR-53B3EM/FM includes a
GaAs PIN photodiode mounted
together with a custom, silicon
bipolar transimpedance
preamplifier IC in an OSA. This
OSA is mated to a custom silicon
bipolar circuit that provides post-
amplification and quantization.
The post-amplifier also includes a
Signal Detect circuit which
provides a TTL logic-high output
upon detection of a usable input
optical signal level. The high
speed output lines are dc-coupled,
different that the transmitter.
Package and Handling Instructions
Flammability
The HFBR-53B3EM/FM
transceiver housing is made of
high strength, heat resistant,
chemically resistant and UL 94V-0
flame retardant plastic.
Recommended Solder and Wash
Process
The HFBR-53B3EM/FM is
compatible with industry-standard
wave or hand solder processes.
Process Plug
This transceiver is supplied with a
process plug (HFBR-5000) for
protection of the optical ports
within the duplex SC connector
receptacle. This process plug
prevents contamination during
wave solder and aqueous rinse as
well as during handling, shipping
and storage. It is made of a high-
temperature, molded sealing
material that can withstand +85°C
and a rinse pressure of 110 lbs per
square inch.
Recommended Solder Fluxes
Solder fluxes used with the
HFBR-53B3EM/FM should be
water-soluble, organic fluxes.
Recommended solder fluxes
include Lonco 3355-11 from
London Chemical West, Inc. of
Burbank, CA, and 100 Flux from
Alpha-Metals of Jersey City, NJ.
Recommended Cleaning/ Degreasing
Chemicals
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, Agilent
does not recommend the use of
cleaners that use halogenated
hydrocarbons because of their
potential environmental harm.
Regulatory Compliance
(See the Regulatory Compliance
Table for transceiver performance)
The overall equipment design will
determine the certification level.
The transceiver performance is
offered as a figure of merit to
assist the designer in considering
their use in equipment designs.
Electrostatic Discharge (ESD)
There are two design cases in
which immunity to ESD damage is
important.
The first case is during handling of
the transceiver prior to mounting it
on the circuit board. It is important
to use normal ESD handling
precautions for ESD sensitive
devices. These precautions
include using grounded wrist
straps, work benches, and floor
mats in ESD controlled areas. The
transceiver performance has been
shown to provide adequate
performance in typical industry
production environments.
The second case to consider is
static discharges to the exterior of
the equipment chassis containing
the transceiver parts. To the
extent that the duplex SC
connector receptacle is exposed
to the outside of the equipment
chassis it may be subject to
whatever system-level ESD test
criteria that the equipment is
intended to meet. The transceiver
performance is more robust than
typical industry equipment
requirements of today.
Electromagnetic Interference (EMI)
Most equipment designs utilizing
these high-speed transceivers
from Agilent will be required to
meet the requirements of FCC in
the United States, CENELEC
EN55022 (CISPR 22) in Europe
and VCCI in Japan. Refer to EMI
section (page 4) for more details.
Immunity
Equipment utilizing these
transceivers will be subject to
radio-frequency electromagnetic
fields in some environments.
These transceivers have good
immunity to such fields due to
their shielded design.
Eye Safety
These laser-based transceivers
are classified as AEL Class I (U.S.
21 CFR(J) and AEL Class 1 per
EN 60825-1 (+A11). They are eye
safe when used within the data
sheet limits per CDRH. They are
also eye safe under normal
operating conditions and under all
reasonably foreseeable single
fault conditions per EN60825-1.
Agilent has tested the transceiver
design for compliance with the
requirements listed below under
normal operating conditions and
under single fault conditions
where applicable. TUV Rheinland
has granted certification to these
transceivers for laser eye safety
and use in EN 60950 and
EN 60825-2 applications. Their
performance enables the
transceivers to be used without
concern for eye safety up to
maximum volts transmitter V
CC
.
2
CAUTION:
There are no user serviceable parts
nor any maintenance required for
the HFBR-53B3EM/FM. All
adjustments are made at the
factory before shipment to our
customers. Tampering with or
modifying the performance of the
HFBR-53B3EM/FM will result in
voided product warranty. It may
also result in improper operation
of the HFBR-53B3EM/FM
circuitry, and possible overstress
of the laser source. Device
degradation or product failure
may result.
Connection of the
HFBR-53B3EM/FM to a
nonapproved optical source,
operating above the recommended
absolute maximum conditions or
operating the HFBR-53B3EM/FM
in a manner inconsistent with its
design and function may result in
hazardous radiation exposure and
may be considered an act of
modifying or manufacturing a
laser product. The person(s)
performing such an act is required
by law to recertify and reidentify
the laser product under the
provisions of U.S. 21 CFR
(Subchapter J).
Regulatory Compliance
Feature
Electrostatic Discharge
(ESD) to the
Electrical Pins
Electrostatic Discharge
(ESD) to the
Duplex SC Receptacle
Electromagnetic
Interference (EMI)
Test Method
MIL-STD-883C
Method 3015.4
Variation of IEC 801-2
Performance
Class 1 (>1500 V).
Immunity
FCC Class B
CENELEC EN55022 Class B
(CISPR 22A)
VCCI Class I
Variation of IEC 801-3
Typically withstand at least 15 kV without damage
when the duplex SC connector receptacle is
contacted by a Human Body Model probe.
Margins are dependent on customer board and
chassis designs.
Laser Eye Safety
and Equipment Type
Testing
US 21 CFR, Subchapter J
per Paragraphs 1002.10
and 1002.12
EN 60825-1: 1994 + A11:1996
EN 60825-2: 1994 + A1
EN 60950: 1992 + A1 + A2 + A3
EN 60950: 1992
+ A4 + A11
Underwriters Laboratories and
Canadian Standards Association
Joint Component Recognition
for Information Technology
Equipment Including Electrical
Business Equipment.
Typically show no measurable effect from a 10 V/m
field swept from 27 to 1000 MHz applied to the
transceiver without a chassis enclosure.
AEL Class I, FDA/CDRH
AEL Class 1, TUV Rheinland of North America
Component
Recognition
Protection Class III
UL File E173874
3
APPLICATION SUPPORT
Optical Power Budget and Link
Penalties
The worst-case Optical Power
Budget (OPB) in dB for a fiber-
optic link is determined by the
difference between the minimum
transmitter output optical power
(dBm avg) and the lowest receiver
sensitivity (dBm avg). This OPB
provides the necessary optical
signal range to establish a
working fiber-optic link. The OPB
is allocated for the fiber-optic
cable length and the corresponding
link penalties. For proper link
performance, all penalties that
affect the link performance must
be accounted for within the link
optical power budget.
Data Line Interconnections
Agilent’s HFBR-53B3EM/FM
fiber-optic transceiver is designed
for PECL compatible signals. The
transmitter inputs are internally
ac-coupled to the laser driver
circuit from the transmitter input
pins (pins 7, 8). The transmitter
driver circuit for the laser light
source is an ac-coupled circuit.
This circuit regulates the output
optical power. The regulated light
output will maintain a constant
output optical power provided the
data pattern is reasonably
balanced in duty factor. If the data
duty factor has long, continuous
state times (low or high data duty
factor), then the output optical
power will gradually change its
average output optical power
level to its preset value.
The receiver section is internally
ac-coupled between the pre-
amplifier and the post-amplifier
stages. The actual Data and Data-
bar outputs of the post-amplifier
are dc-coupled to their respective
output pins (pins 2, 3). Signal
Detect is a single-ended, TTL
output signal that is dc-coupled to
pin 4 of the module. Signal Detect
should not be ac-coupled
externally to the follow-on circuits
because of its infrequent state
changes.
Caution should be taken to
account for the proper intercon-
nection between the supporting
Physical Layer integrated circuits
and this HFBR-53B3EM/FM
transceiver. Figure 3 illustrates a
recommended interface circuit for
interconnecting to a PECL
compatible fiber-optic transceiver.
Eye Safety Circuit
For an optical transmitter device
to be eye-safe in the event of a
single fault failure, the transmitter
must either maintain normal,
eye-safe operation or be disabled.
In the HFBR-53B3EM/FM there
are three key elements to the laser
driver safety circuitry: a monitor
diode, a window detector circuit,
and direct control of the laser
bias. The window detection
circuit monitors the average
optical power using the monitor
diode. If a fault occurs such that
the transmitter dc regulation
circuit cannot maintain the preset
bias conditions for the laser
emitter within ± 20%, the
transmitter will automatically be
disabled. Once this has occurred,
only an electrical power reset will
allow an attempted turn-on of the
transmitter.
Signal Detect
The Signal Detect circuit provides
a TTL low output signal when the
optical link is broken or when the
transmitter is off. The Signal
Detect threshold is set to
transition from a high to low state
between the minimum receiver
input optional power and –30 dBm
avg. input optical power
indicating a definite optical fault
(e.g. unplugged connector for the
receiver or transmitter, broken
fiber, or failed far-end transmitter
or data source). A Signal Detect
indicating a working link is
functional when receiving
encoded 8B/10B characters. The
Signal Detect does not detect
receiver data error or error-rate.
Data errors are determined by
signal processing following the
transceiver.
Electromagnetic Interference (EMI)
One of a circuit board designer’s
foremost concerns is the control
of electromagnetic emissions
from electronic equipment.
Success in controlling generated
Electromagnetic Interference
(EMI) enables the designer to pass
a governmental agency’s EMI
regulatory standard; and more
importantly, it reduces the
possibility of interference to
neighboring equipment. The EMI
performance of an enclosure
using these transceivers is
dependent on the chassis design.
Agilent encourages using standard
RF suppression practices and
avoiding poorly EMI-sealed
enclosures.
4
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause catastrophic damage to the device. Limits apply to each parameter
in isolation, all other parameters having values within the recommended operating conditions. It should not be assumed that
limiting values of more than one parameter can be applied to the product at the same time. Exposure to the absolute maximum
ratings for extended periods can adversely affect device reliability.
Parameter
Storage Temperature
Supply Voltage
Data Input Voltage
Transmitter Differential Input Voltage
Output Current
Relative Humidity
Symbol
T
S
V
CC
V
I
V
D
I
D
RH
Min.
-40
-0.5
-0.5
Typ.
5
Max.
+100
7.0
V
CC
1.6
50
95
Unit
°C
V
V
V
mA
%
Reference
1
2
Recommended Operating Conditions
Parameter
Ambient Operating Temperature
Case Temperature
Supply Voltage
Power Supply Rejection
Transmitter Differential Input Voltage
Data Output Load
Signal Detect Output Load
Symbol
T
A
T
C
V
CC
PSR
V
D
R
DL
R
SDL
Min.
0
4.75
50
0.3
50
50
1.6
Typ.
Max.
+70
+90
5.25
Unit
°C
°C
V
mV
P-P
V
Reference
3
4
5
5
W
W
Process Compatibility
Parameter
Hand Lead Soldering Temperature/Time
Wave Soldering and Aqueous Wash
Symbol
T
SOLD
/t
SOLD
T
SOLD
/t
SOLD
Min.
Typ.
Max.
+260/10
+260/10
Unit
°C/sec
°C/sec
Reference
6
Notes:
1. The transceiver is class 1 eye-safe up to V
CC
= 7 V.
2. This is the maximum voltage that can be applied across the Differential Transmitter Data Inputs without damaging the input circuit.
3. Case temperature measurement referenced to the center-top of the internal metal transmitter shield.
4. Tested with a 50 mV
P–P
sinusoidal signal in the frequency range from 500 Hz to 1500 kHz on the V
CC
supply with the recommended power
supply filter in place. Typically less than a 0.25 dB change in sensitivity is experienced.
5. The outputs are terminated to V
CC
–2 V.
6. Aqueous wash pressure < 110 psi.
5
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