2
Receiver Section
The receiver of the HFBR-53D5
includes a silicon 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 HFCT-53D5
utilizes an InP PIN photodiode in
the same configuration.
The post-amplifier also includes a
Signal Detect circuit which pro-
vides a PECL logic-high output
upon detection of a usable input
optical signal level. This single-
ended PECL output is designed to
drive a standard PECL input
through a 50
Ω
PECL load.
Recommended Solder fluxes
Solder fluxes used with the
HFBR/HFCT-53D5 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, HP
does not recommend the use of
cleaners that use halogenated
hydrocarbons because of their
potential environmental harm.
wrist straps, work benches, and
floor mats in ESD controlled
areas. The transceiver perform-
ance 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 5) 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 forseeable single
Package and Handling
Instructions
Flammability
The HFBR/HFCT-53D5
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/HFCT-53D5 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 80°C
and a rinse pressure of 110 lbs
per square inch.
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 pre-
cautions include using grounded
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
