2 x Ø 1.9 0.1
(0.075 0.004)
used. Ferrite beads can be used to
replace the coil inductors when
20.32
(0.800)
using quieter V supplies, but a
CC
coil inductor is recommended
over a ferrite bead. All power
supply components need to be
placed physically next to the V
pins of the receiver and
CC
transmitter. Use a good, uniform
ground plane with a minimum
number of holes to provide a low-
inductance ground current return
for the power supply currents.
9 x Ø 0.8 0.1
(0.032 0.004)
20.32
(0.800)
In addition to these
recommendations,Agilent’s
Application Engineering staff is
available for consulting on best
layout practices with various
vendors mux/demux, clock
generator and clock recovery
circuits. Agilent has participated
in several reference design
studies and is prepared to share
2.54
(0.100)
TOP VIEW
DIMENSIONS ARE IN MILLIMETERS (INCHES)
Figure 4. Recommended Board Layout Hole Pattern
HFCT-5805 Process Plug
solder fluxes are Lonco 3355-11
from London Chemical West, Inc.
of Burbank, CA, and 100 Flux
from Alpha- metals of Jersey
City, NJ.
the findings of these studies with The HFCT-5805 transceiver is
interested customers. Contact
your local Agilent sales
supplied with a process plug for
protection of the optical ports
representative to arrange for this with the Duplex SC connector
service.
receptacle. This process plug
prevents contamination during
wave solder and aqueous rinse as
well as during handling, shipping
or storage. It is made of
Recommended cleaning and
Evaluation Circuit Boards
Evaluation circuit boards are
available from Agilent’s
Application Engineering staff.
Contact your local Agilent sales
representative to arrange for
access to one if needed.
degreasing chemicals for the
HFCT-5805 are alcohol’s (methyl,
isopropyl, isobutyl), aliphatics
(hexane, heptane) and other
chemicals, such as soap solution
or naphtha. Do not use partially
halogenated hydrocarbons for
cleaning/degreasing. Examples of
chemicals to avoid are 1.1.1.
trichloroethane, ketones (such as
MEK), acetone, chloroform, ethyl
acetate, methylene dichloride,
high-temperature, molded,
sealing material that will
withstand +85°C and a rinse
2
pressure of 110 lb/in .
Recommended Solder and Wash
Process
The HFCT-5805 is compatible
with industry standard wave or
hand solder processes.
Recommended Solder Fluxes
and Cleaning/Degreasing
Chemicals
Solder fluxes used with the
HFCT-5805 fiber-optic transceiver phenol, methylene chloride or
should be water-soluble, organic
solder fluxes. Some recommended
N-methylpyrolldone.
A drying cycle must be
completed after wash process to
remove all moisture from the
module.
4
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
