HFBR-59L1ALZ
RoHS Compliant, 1.25 Gb/s Ethernet and 1.0625 Gb/s Fibre
Channel 850 nm SFF Low Voltage (3.3 V) Optical Transceiver
Data Sheet
Description
The HFBR-59L1ALZ from Avago Technologies is a high
performance, cost-effective optical transceiver for serial
optical data communications applications operating at
1.25 Gb/s and 1.0625 Gb/s. This module is designed for
multimode fiber and operates at a nominal wavelength of
850 nm. The transceiver incorporates 3.3 V DC compatible
technology including an 850 nm VCSEL transmitter. The
HFBR-59L1ALZ offers maximum flexibility to Fibre Channel
and Ethernet designers, manufacturers, and system inte-
grators. It is designed for use in short reach multimode
fiber optic 1000BASE-SX and Fiber Channel (100-M5-SN-1)
links. This device is also designed for a wide voltage and
temperature range of operation.
This transceiver is compliant with the Small Form Factor
Multi-Source Agreement and is fully compliant with all
equipment meeting the Gigabit Ethernet (1000 Base-SX)
and Fibre Channel (FC-PI 100-M5-SN-I, FC-PI 100-M6-SN-I,
FC-PH2 100-M5-SN and FC-PH2 100-M6-SN-I 1.0625 Gb/s)
specifications.
Features
•
Fully RoHS Compliant
•
Data rate specification:
1.25 Gb/s operation for IEEE 802.3 Gigabit Ethernet
1000BASE-SX
1.0625 Gb/s operation for FC-PI 100-M5-SN-I and FC-PI
100-M6-SN-I
•
Wide temperature and supply voltage operation
•
Industry standard 2 x 5 SFF package
•
LC-duplex connector optical interface
•
Link lengths at 1.25 Gb/s:
0.5 to 500 m – 50/125 mm MMF
0.5 to 275 m – 62.5/125 mm MMF
•
Link lengths at 1.0625 Gb/s:
0.5 to 500 m – 50/125 mm MMF
0.5 to 300 m – 62.5/125 mm MMF
•
Reliable 850 nm Vertical Cavity Surface Emitting Laser
(VCSEL) source technology
•
Laser AEL Class I (eye safe) per:
US 21 CFR (J)
EN 60825-1 (+All)
•
Single +3.3 V power supply operation
•
Wave solder and aqueous wash process compatible
Related Products
•
HFCT-59L1ATLZ: 1300 nm Small Form Factor optical
transceiver for 10 km Gigabit Ethernet links
•
HFBR-5911LZ/ALZ: 850 nm Small Form Factor optical
transceiver for short reach Gigabit Ethernet (1000BASE-
SX) links
Applications
•
•
•
•
•
•
•
•
•
Short reach Gigabit Ethernet links
High speed backplane interconnects
Switched backbones
iSCSI applications
Mass storage system I/O
Computer system I/O
High speed peripheral interface
High speed switching systems
Host adaptor I/O
Patent -
www.avagotech.com/patents
HFBR-59L1ALZ BLOCK DIAGRAM
RECEIVER
AMPLIFICATION
& QUANTIZATION
ELECTRICAL INTERFACE
RD+ (RECEIVE DATA)
RD– (RECEIVE DATA)
SIGNAL DETECT
LIGHT FROM FIBER
PHOTO-DETECTOR
OPTICAL INTERFACE
TRANSMITTER
LASER
DRIVER &
SAFETY
CIRCUITRY
Tx_DISABLE
TD+ (TRANSMIT DATA)
TD– (TRANSMIT DATA)
LIGHT TO FIBER
VCSEL
Figure 1. Transceiver functional diagram. (See Process Compatibility Specifications).
Module Package
Avago Technologies offers the Pin Through Hole package
utilizing an integral LC Duplex optical interface connector.
The transceiver uses a reliable 850 nm VCSEL source
and requires a 3.3 V dc power supply for optimal system
design.
6
7
8
9
10
5
4
3
2
1
Pin Description
Pin
1
2
3
4
5
6
7
TX
RX
Name
RX Ground
RX Power
RX SD
RX Data Bar
RX Data
TX Power
TX Ground
TX Disable
TX Data
TX Data Bar
Type
Ground
Power
Status Out
Signal Out
Signal Out
Power
Ground
Control In
Signal In
Signal In
Module Diagrams
Figure 1 illustrates the major functional components of the
HFBR-59L1ALZ. The connection diagram for both modules
are shown in Figure 2. Figures 6a and 6b depict the external
configuration and dimensions of the module.
8
9
10
Installation
The HFBR-59L1ALZ can be installed in any MSA compliant
Pin Through Hole port. The module Pin Description is
shown in Figure 2.
TOP VIEW
Solder and Wash Process Capability
These transceivers are delivered with protective process
plugs inserted into the LC connector receptacle. This
process plug protects the optical subassemblies during
wave solder and aqueous wash processing and acts as
a dust cover during shipping. These transceivers are
compatible with industry standard wave or hand solder
processes.
Figure 2. Module pin assignments and pin configuration.
Recommended Cleaning/Degreasing
Chemicals
Alcohols:
methyl, isopropyl, isobutyl.
Aliphatics:
hexane, heptane.
Other:
naphtha. Do not use partially halogenated hydro-
carbons such as 1,1.1 trichoroethane or ketones such as
MEK, acetone, chloroform, ethyl acetate, methylene dichlo-
ride, 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.
Recommended Solder Fluxes
Solder fluxes used with the HFBR-59L1ALZ should be
watersoluble, 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.
2
Transmitter Section
The transmitter section includes an 850 nm VCSEL (Vertical
Cavity Surface Emitting Laser) light source and a transmit-
ter driver circuit. The driver circuit maintains a constant
optical power level provided that the data pattern is valid
8B/10B code. Connection to the transmitter is provided
via an LC optical connector.
the supporting Physical Layer integrated circuits and the
HFBR-59L1ALZ. Figure 3 illustrates the recommended
interface circuit.
Reference Designs
Figure 3 depicts a typical application configuration, while
Figure 4 depicts the multisourced power supply filter
circuit design.
TX Disable
The HFBR-59L1ALZ accepts a LVTTL transmit disable
control signal input which shuts down the transmitter. A
high signal implements this function while a low signal
allows normal laser operation. In the event of a fault (e.g.,
eye safety circuit activated), cycling this control signal
resets the module. The TX Disable control should be
actuated upon initialization of the module. See Figure 5
for product timing diagrams.
Regulatory Compliance
See Table 1 for transceiver Regulatory Compliance perfor-
mance. The overall equipment design will determine the
certification level. The transceiver performance is offered
as a figure of merit to assist the designer.
Electrostatic Discharge (ESD)
There are two conditions in which immunity to ESD
damage is important. Table 1 documents our immunity
to both of these conditions. The first condition is during
handling of the transceiver prior to attachment to the PCB.
To protect the transceiver, it is important to use normal
ESD handling precautions. These precautions include
using grounded wrist straps, work benches, and floor mats
in ESD controlled areas. The ESD sensitivity of the HFBR-
59L1ALZ is compatible with typical industry production
environments. The second condition is static discharges
to the exterior of the host equipment chassis after instal-
lation. To the extent that the duplex LC optical interface
is exposed to the outside of the host equipment chassis,
it may be subject to system-level ESD requirements. The
ESD performance of the HFBR-59L1ALZ exceeds typical
industry standards.
Eye Safety Circuit
For an optical transmitter device to be eye-safe in the
event of a single fault failure, the transmitter will either
maintain normal, eye-safe operation or be disabled. In the
event of an eye safety fault, the VCSEL will be disabled.
Receiver Section
Connection to the receiver is provided via an LC optical
connector. The receiver circuit also includes a Signal
Detect (SD) circuit which provides an LVTTL output logic
low output in the absence of a usable input optical signal
level.
Signal Detect
The Signal Detect (SD) output indicates if the optical input
signal to the receiver does not meet the minimum detect-
able level for Fibre Channel compliant signals. When SD is
low it indicates loss of signal. When SD is high it indicates
normal operation. The Signal Detect thresholds are set
to indicate a definite optical fault has occurred (e.g.,
disconnected or broken fiber connection to receiver,
failed transmitter).
Immunity
Equipment hosting the HFBR-59L1ALZ modules will be
subjected to radio-frequency electromagnetic fields in
some environments. The transceivers have good immunity
to such fields due to their shielded design.
Functional Data I/O
Avago Technologies HFBR-59L1ALZ fiber-optic transceiver
is designed to accept industry standard differential signals.
In order to reduce the number of passive components
required on the customer’s board, Avago Technologies has
included the functionality of the transmitter bias resistors
and coupling capacitors within the fiber optic module. The
transceiver is compatible with an “ac-coupled” configura-
tion and is internally terminated. Figure 1 depicts the func-
tional diagram of the HFBR-59L1ALZ. Caution should be
taken to account for the proper interconnection between
3
Electromagnetic Interference (EMI)
Most equipment designs utilizing these high-speed trans-
ceivers from Avago Technologies will be required to meet
the requirements of FCC in the United States, CENELEC
EN55022 (CISPR 22) in Europe and VCCI in Japan. The
metal housing and shielded design of the HFBR-59L1AL
minimize the EMI challenge facing the host equipment
designer.
These transceivers provide superior EMI performance.
This greatly assists the designer in the management of the
overall system EMI performance.
Eye Safety
These 850 nm VCSEL-based transceivers provide Class 1
eye safety by design. Avago Technologies has tested the
transceiver design for compliance with the requirements
listed in Table 1: Regulatory Compliance, under normal
operating conditions and under a single fault condition.
Connection of the HFBR-59L1ALZ to a non-approved
optical source, operating above the recommended
absolute maximum conditions or operating the HFBR-
59L1ALZ 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 provi-
sions of U.S. 21 CFR (Subchapter J) and the TUV.
Flammability
The HFBR-59L1ALZ VCSEL transceiver housing is made
of metal and high strength, heat resistant, chemically
resistant, and UL 94V-0 flame retardant plastic.
Caution
There are no user serviceable parts nor is any maintenance
required for the HFBR-59L1ALZ. All adjustments are made
at the factory before shipment to our customers.
Tampering with or modifying the performance of the
HFBR-59L1ALZ will result in voided product warranty.
It may also result in improper operation of the HFBR-
59L1ALZ circuitry, and possible overstress of the laser
source. Device degradation or product failure may result.
Ordering Information
Please contact your local field sales engineer or one of
Avago Technologies franchised distributors for ordering
information. For technical information regarding this
product, including the MSA, please visit Avago Technolo-
gies Website at www.avagotech.com. Use the quick search
feature to search for this part number. You may also
contact Avago Technologies Customer Response Center.
Table 1. Regulatory Compliance
Feature
Electrostatic Discharge
(ESD) to the Electrical Pins
Electrostatic Discharge
(ESD) to the Duplex LC
Receptacle
Electromagnetic Interference
(EMI)
Test Method
MIL-STD-883C
Method 3015.4
Variation of IEC 61000-4-2
Performance
Class 2 (>2000 V)
Typically withstand at least 25 kV without damage when the
duplex LC connector receptacle is contaced by a Human Body
Model probe.
System margins are dependent on customer board and chassis
design.
FCC Class B
CENELEC EN55022 Class B
(CISPR 22A)
VCCI Class 1
Variation of IEC 61000-4-3
Immunity
Typically shows a negligible effect from a 10 V/m field swept
from 80 to 1000 MHz applied to the transceiver without a
chassis enclosure.
CDRH file # 9720151
TUV file # R2079009
UL file # E173874
Eye Safety
US FDA CDRH AEL Class 1
EN (IEC)60825-1, 2
EN60950 Class 1
Underwriters Laboratories and
Canadian Standards Association
Joint Component Recognition
for Information Technology
Equipment including Electrical
Business Equipment.
Component Recognition
4
3.3 V
10 µF
0.1 µF
1 µH
1 µH
VCC,T
0.1 µF
9.0 K
GP04
VREFR
VREFR
TX[0:9]
TBC
EWRAP
TBC
EWRAP
HDMP-1687
or
HDMP-1636A
RX[0:9]
RBC
Rx_RATE
REFCLK
SI+
100
Ω
Tx_DISABLE
50
Ω
50
Ω
0.01 µF
100
Ω
LASER DRIVER
& SAFETY
CIRCUITRY
SO+
SO–
TD+
TD–
TX GND 0.01 µF
PROTOCOL
IC
RBC
Rx_RATE
Rx_SD
10 µF
50
Ω
50
Ω
0.1
µF
RD+
RD–
Rx_SD
RX GND
0.01 µF
1.2 K
VCC,R
0.01 µF
VCC,R
50
Ω
SI–
AMPLIFICATION
&
QUANTIZATION
50
Ω
VCC,R
HFBR-59L1ALZ
REFCLK
106.25 MHz
Figure 3. Typical application configuration.
VCCT
0.1 µF
1 µH
VCCR
0.1 µF
10 µF
1 µH
0.1 µF
10 µF
3.3 V
SFF MODULE
HOST BOARD
NOTE: INDUCTORS MUST HAVE LESS THAN 1
Ω
SERIES RESISTANCE PER MSA.
Figure 4. MSA recommended power supply filter.
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