HFBR-5803A HP [Agilent(Hewlett-Packard)], HFBR-5803A Datasheet - Page 7

• Manufacturer Part Number: HFBR-5803A
• Description: FDDI 100 Mb/s ATM and Fast Ethernet Transceivers in Low Cost 1 x 9 Package Style
• Manufacturer: HP [Agilent(Hewlett-Packard)]

(0.800)
Figure 8. Recommended Board Layout Hole Pattern
Solder and Wash Process
Compatibility
The transceivers are delivered
with protective process plugs
inserted into the duplex SC or
duplex ST 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 compat-
ible with either industry
standard wave or hand solder
processes.
Shipping Container
The transceiver is packaged in a
shipping container designed to
protect it from mechanical and
ESD damage during shipment or
storage.
Board Layout - Decoupling Circuit
and Ground Planes
It is important to take care in
the layout of your circuit board
to achieve optimum
performance from these
7
20.32
(0.100)
2.54
(0.800)
20.32
transceivers. Figure 7 provides a
good example of a schematic for
a power supply decoupling
circuit that works well with
these parts. It is further
recommended that a contiguous
ground plane be provided in the
circuit board directly under the
transceiver to provide a low
inductance ground for signal
return current. This recommen-
dation is in keeping with good
high frequency board layout
practices.
Board Layout - Hole Pattern
The Agilent transceiver complies
with the circuit board “Common
Transceiver Footprint” hole
pattern defined in the original
multisource announcement
which defined the 1 x 9 package
style. This drawing is repro-
duced in Figure 8 with the
addition of ANSI Y14.5M
compliant dimensioning to be
used as a guide in the mechani-
cal layout of your circuit board.
TOP VIEW
(0.032 ± 0.004)
(0.075 ± 0.004)
9 x Ø 0.8 ± 0.1
2 x Ø 1.9 ± 0.1
Board Layout - Art Work
The Applications Engineering
group has developed Gerber file
artwork for a multilayer printed
circuit board layout incorporat-
ing the recommendations above.
Contact your local Agilent sales
representative for details.
Board Layout - Mechanical
For applications providing a
choice of either a duplex SC or a
duplex ST connector interface,
while utilizing the same pinout
on the printed circuit board, the
ST port needs to protrude from
the chassis panel a minimum of
9.53 mm for sufficient clearance
to install the ST connector.
Please refer to Figure 8a for a
mechanical layout detailing the
recommended location of the
duplex SC and duplex ST trans-
ceiver packages in relation to
the chassis panel.