AFBR-5903Z Avago Technologies US Inc., AFBR-5903Z Datasheet - Page 7

• Manufacturer Part Number: AFBR-5903Z
• Description: TXRX OPT FE MTRJ 2X5DIP
• Manufacturer: Avago Technologies US Inc.

Specifications of AFBR-5903Z

• Applications: General Purpose
• Data Rate: 100Mbps
• Wavelength: 1300nm
• Voltage - Supply: 3.3V
• Connector Type: MTRJ
• Mounting Type: Through Hole
• Data Rate Max: 125Mbps
• Supply Voltage: 3.3V
• Wavelength Typ: 1300nm
• Leaded Process Compatible: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 516-1993

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.
Figure 7. Recommended Decoupling and Termination Circuits
7
Note: C1 = C2 = C3 = 10 nF or 100 nF
TX
RX
10
TRANSCEIVER INPUTS
1
TERMINATE AT
9
2
8
3
130 Ω
100
7
4 5
6
130 Ω
C2
C1
Z = 50 Ω
Z = 50 Ω
1 µH
1 µH
V CC (+3.3 V)
C3
Z = 50 Ω
Z = 50 Ω
Z = 50 Ω
10 µF
Board Layout - Hole Pattern
The Avago Technologies transceiver complies with the
circuit board “ Common T ransceiver Footprint” hole pattern
defined in the original multisource announcement which
defined the 2 x 5 package style. T his 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.
130 Ω
TERMINATE AT
DEVICE INPUTS
130 Ω
82 Ω
V CC (+3.3V)
100 Ω
130 Ω
TD-
TD+
RD+
RD-
SD
PHY DEVICE
V CC (+3.3 V)
LVPECL
V CC (+3.3 V)
LVPECL