HFBR-5903 Avago Technologies US Inc., HFBR-5903 Datasheet - Page 8

• Manufacturer Part Number: HFBR-5903
• Description: Fiber Optics, Transceiver Module
• Manufacturer: Avago Technologies US Inc.

Specifications of HFBR-5903

• Data Rate Max: 125Mbps
• Wavelength Typ: 1300nm
• Connector Type: MT-RJ
• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 9. Recommended Board Layout Hole Pattern
Board Layout - Decoupling Circuit, Ground Planes and
Termination Circuits
It is important to take care in the layout of your circuit
board to achieve optimum performance from these
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 continuous ground plane be provided in the
circuit board directly under the transceiver to provide
a low inductance ground for signal return current. This
recommendation is in keeping with good high
frequency board layout practices. Figures 7 and 8 show
two recommended termination schemes.
8
DIMENSIONS IN MILLIMETERS (INCHES)
NOTES:
1. THIS FIGURE DESCRIBES THE RECOMMENDED CIRCUIT BOARD LAYOUT FOR THE MT-RJ
2. THE HATCHED AREAS ARE KEEP-OUT AREAS RESERVED FOR HOUSING STANDOFFS. NO
3. 10 PIN MODULE REQUIRES ONLY 16 PCB HOLES, INCLUDING 4 PACKAGE GROUNDING TAB
4. THE SOLDER POSTS SHOULD BE SOLDERED TO CHASSIS GROUND FOR MECHANICAL
TRANSCEIVER PLACED AT .550 SPACING.
METAL TRACES OR GROUND CONNECTION IN KEEP-OUT AREAS.
INTEGRITY AND TO ENSURE FOOTPRINT COMPATIBILITY WITH OTHER SFF TRANSCEIVERS.
(0.425)
(0.525)
HOLES CONNECTED TO SIGNAL GROUND.
13.34
10.8
KEEP OUT AREA
FOR PORT PLUG
(0.299)
(0.276)
7.59
(0.118)
7
3
(1.063)
27
(0.055±0.004)
Ø 1.4 ±0.1
(0.236)
(0.118)
6
3
(0.28 )
7.11
17.78
(0.7)
(0.18)
4.57
Ø 1.4 ±0.1
(0.055±0.004)
(0.07)
1.778
(0.121 )
3.08
7.112
(0.28)
Board Layout - Hole Pattern
The Avago Technologies transceiver complies with the
circuit board “Common Transceiver Footprint” hole
pattern defined in the original multisource announce-
ment which defined the 2 x 5 package style. This
drawing is reproduced in Figure 9 with the addition of
ANSI Y14.5M compliant dimensioning to be used as a
guide in the mechanical layout of your circuit board.
Regulatory Compliance
These transceiver products are intended to enable
commercial system designers to develop equipment
that complies with the various international regulations
governing certification of Information Technology
Equipment. See the Regulatory Compliance Table for
details. Additional information is available from your
Avago Technologies sales representative.
(0.121)
3.08
(0.14)
3.56
(0.378 )
Ø 2.29
10.16
9.59
(0.4) 13.97
(0.09)
(0.032±0.004)
Ø 0.81 ±0.1
(0.55)
MIN.
Holes For
Housing
Leads
(0.079 )
2
Ø 1.4 ±0.1
(0.055±0.004)