4
Required Host Board Components
The MSA power supply noise
rejection filter is required on the
host PCB to meet data sheet
performance. The MSA filter
incorporates an inductor which
should be rated 400 mADC and
1
series resistance or better. It
should not be replaced with a
ferrite. The required filter is
illustrated in Figure 3.
The MSA also specifies that 4.7 K
to 10 K
pull-up resistors for
TX_FAULT, LOS, and
MOD_DEF0,1,2 are required on
the host PCB.
Application Support
Evaluation Kit
To assist in the transceiver
evaluation process, Agilent offers
a 1.25 Gbd Gigabit Ethernet
evaluation board which facilitates
testing of the HFBR-5710L. It can
be obtained through the Agilent
Field Organization by referencing
Agilent part number HFBR-0571.
Reference Designs
A Reference Design including the
HFBR-5710L and the HDMP-
1687 GigaBit Quad SerDes is
available. It may be obtained
through the Agilent Field Sales
organization.
Regulatory Compliance
See Table 1 for transceiver
Regulatory Compliance. Certi-
fication level is dependent on the
overall configuration of the host
equipment. The transceiver
performance is offered as a figure
of merit to assist the designer.
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
insertion into the transceiver
port. To protect the transceiver,
it’s 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-5710L is
compatible with typical industry
production environments.
The second case to consider is
static discharges to the exterior
of the host equipment chassis
after installation. To the extent
that the optical interface is
exposed to the outside of the host
equipment chassis, it may be
subject to system-level ESD
requirements.
Immunity
The ESD performance of the
HFBR-5710L exceeds typical
industry standards.
Equipment hosting HFBR-5710L
modules will be subjected to
radio-frequency electromagnetic
fields in some environments. The
transceiver has good immunity to
such fields due to its shielded
design.
Electromagnetic Interference (EMI)
Equipment incorporating Gigabit
Ethernet transceivers is typically
required to meet the require-
ments of the FCC in the United
States, CENELEC EN55022
(CISPR 22) in Europe, and VCCI
in Japan.
The metal housing and shielded
design of the HFBR-5710L
minimize the EMI challenge
facing the host equipment
designer.
Flammability
The HFBR-5710L transceiver 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 any maintenance
required for the HFBR-5710L. All
adjustments are made at the
factory before shipment to our
customers. Tampering with,
modifying, misusing or improp-
erly handling the HFBR-5710L
will void the product warranty. It
may also result in improper
operation of the HFBR-5710L
circuitry, and possible overstress
of the laser source. Device
degradation or Product failure
may result. Connection of the
HFBR-5710L to a non-Gigabit
Ethernet-compliant optical
source, operating above the
recommended absolute maximum
conditions or operating the
HFBR-5710L 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 re-
certify and re-identify the laser
product under the provisions of
U.S. 21 CFR (Subchapter J).