HFBR-53A3VEMZ/HFBR-53A3VFMZ
RoHS Compliant 3.3 V 1 x 9 Fiber Optic Transceivers
for Fibre Channel
Data Sheet
Description
The HFBR-53A3VEMZ/VFMZ transceivers from Avago
Technologies allow the system designer to implement a
range of solutions for multimode Fibre Channel applica-
tions.
The overall Avago transceiver product consists of three
sections: the transmitter and receiver optical subassem-
blies, an electrical subassembly, and the package housing
which incorporates a duplex SC connector receptacle.
Features
•
Fully RoHS compliant
•
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
•
Performance
HFBR-53A3VEMZ/VFMZ:
300 m links in 62.5/125
µm
MMF cables
500 m links in 50/125
µm
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 +3.3 V power supply operation with PECL com-
patible logic interfaces and TTL Signal Detect
Transmitter Section
The transmitter section of the HFBR-53A3VEMZ/VFMZ
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 dif-
ferentially terminate with a 100
Ω
resistor.
Applications
•
Mass storage systems I/O
•
Computer systems I/O
•
High-speed peripheral interface
•
High-speed switching systems
•
Computer systems I/O
•
Host adapter I/O
•
RAID cabinets
Receiver Section
The receiver of the HFBR-53A3VEMZ/VFMZ includes a
GaAs PIN photo-diode 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 internally AC-coupled.
Related Products
•
Versions of this transceiver module also available for
+5 V operation (AFBR-53D3Z)
Package and Handling Instructions
Flammability
The HFBR-53A3VEMZ/VFMZ transceiver housing is made
of high strength, heat resistant, chemically resistant, and
UL 94V-0 flame retardant plastic.
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 pro-
duction environments.
The second case to consider is static discharges to the
exterior of the equipment chassis containing the trans-
ceiver 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.
Recommended Solder and Wash Process
The HFBR-53A3VEMZ/VFMZ 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 con-
tamination 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 80° C and a rinse pressure of 110 lbs per square
inch.
Recommended Solder Fluxes
Solder fluxes used with the HFBR-53A3VEMZ/VFMZ 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.
Electromagnetic Interference (EMI)
Most equipment designs utilizing these high-speed
transceivers from Avago 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.
Recommended Cleaning/Degrading 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, Avago
does not recommend the use of cleaners that use halo-
genated hydrocarbons because of their potential environ-
mental harm.
Immunity
Equipment utilizing these transceivers will be subject to
radio-frequency electromagnetic fields in some environ-
ments. These transceivers have good immunity to such
fields due to their shielded design.
Eye Safety
These laser-based transceivers are classified as AEL Class 1
(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 forseeable single
fault conditions per EN60825-1. Avago has tested the
transceiver design for compliance with the require-
ments 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
.
Regulatory Compliance
(See the Regulatory Compliance Table for transceiver per-
formance)
The overall equipment design will determine the certifi-
cation level. The transceiver performance is offered as a
figure of merit to assist the designer in considering their
use in equipment designs.
2
CAUTION:
There are no user serviceable parts nor any maintenance
required for the HFBR-53A3VEMZ/VFMZ. All adjustments
are made at the factory before shipment to our customers.
Tampering with or modifying the performance of the
HFBR-53A3VEMZ/VFMZ will result in voided product
warranty. It may also result in improper operation of the
HFBR-53A3VEMZ/VFMZ circuitry, and possible overstress
of the laser source. Device degradation or product failure
may result.
Connection of the HFBR-53A3VEMZ/VFMZ to a non-
approved optical source, operating above the recom-
mended absolute maximum conditions or operating the
HFBR-53A3VEMZ/VFMZ 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 (Sub-
chapter 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).
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.
FCC Class B
CENELEC EN55022 Class B
(CISPR 22A)
VCCI Class 1
Variation of IEC 801-3
Immunity
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
HFBR-53A3V*MZ Accession #2071022
AEL Class 1, TUV Rheinland of North America HFBR-53A3V*MZ:
Certificate #R9771018.5
Protection Class III
UL File E173874
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 + A4 + A11
Component Recognition
Underwriters Laboratories
and Canadian Standards
Association Joint Component
Recognition for Information
Technology Equipment
Including Electrical Business
Equipment.
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.
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-53A3VEMZ/VFMZ 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.
Data Line Interconnections
Avago’s HFBR-53A3VEMZ/VFMZ fiber-optic transceiver
is designed for compatible PECL signals. The transmitter
inputs are internally AC-coupled to the laser driver circuit
from the transmitter input pins (pins 7, 8). The transmit-
ter 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 pre-set 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 AC-
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 inter-
connection between the supporting Physical Layer
integrated circuits and this HFBR-53A3VEMZ/VFMZ trans-
ceiver. Figure 3 illustrates a recommended interface circuit
for interconnecting to a DC PECL compatible fiber-optic
transceiver.
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 Electro-
magnetic Interference (EMI) enables the designer to pass
a governmental agency’s EMI regulatory standard; and
more importantly, it reduces the possibility of interfer-
ence to neighboring equipment. The EMI performance
of an enclosure using these transceivers is dependent on
the chassis design. Avago 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
Transmitter Differential Input Voltage
Relative Humidity
TTL Signal Detect Current – Low
TTL Signal Detect Current – High
Symbol
T
S
V
CC
V
D
RH
I
OL, MAX
I
OH, MAX
Min.
-40
-0.5
5
-5
Typ.
Max.
+100
5.0
2.2
95
4.0
Units
°C
V
V
%
mA
mA
Reference
1
Recommended Operating Conditions
Parameter
Ambient Operating Temperature
Case Temperature
Supply Voltage
Power Supply Rejection
Transmitter Differential Input Voltage
Received Data Output Load
TTL Signal Detect Output Current – Low
TTL Signal Detect Output Current – High
Symbol
T
A
T
C
V
CC
PSR
V
D
R
DL
I
OL
I
OH
Min.
0
0
3.14
Typ.
Max.
+70
+80
3.47
Units
°C
°C
V
mV
p-p
Reference
2
3
100
0.4
50
1.0
-400
1.6
V
Ω
mA
µA
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
Units
°C/s
°C/s
Reference
4
Notes:
1. The transceiver is class 1 eye safe up to V
CC
= 5.0 V.
2. Case temperature measurement referenced to the metal housing.
3. Tested with a 100 mV
P–P
sinusoidal signal in the frequency range from 10 Hz to 2 MHz on the V
CC
supply with the recommended power supply
filter (with C8) in place. Typically less than a 1 dB change in sensitivity is experienced.
4. Aqueous wash pressure < 110 psi.
5
