AFBR-5905EZ Avago Technologies US Inc., AFBR-5905EZ Datasheet - Page 7

• Manufacturer Part Number: AFBR-5905EZ
• Description: TXRX ATM/SONET OC-3 2X5
• Manufacturer: Avago Technologies US Inc.

Specifications of AFBR-5905EZ

• Wavelength: 1308nm
• Data Rate: *
• Applications: General Purpose
• Voltage - Supply: 3.135 V ~ 3.465 V
• Connector Type: MTRJ
• Mounting Type: Through Hole
• Function: MMC OC-3 PB-Free MTRFJ
• Product: Transceiver
• Maximum Rise Time: 3 ns, 2.2 ns
• Maximum Fall Time: 3 ns, 2.2 ns
• Pulse Width Distortion: 0.21 ns, 0.15 ns
• Maximum Output Current: 50 mA
• Operating Supply Voltage: 3.135 V to 3.465 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• For Use With: Multimode Glass
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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 trans-
ceivers. 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 un-
der 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.
7
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
Figure 7. Recommended Decoupling and Termination Circuits
7
Note: C1 = C2 = C3 = 10 nF or 100 nF
T
R
X
X
TRANSCEIVER INPUTS
10
1
TERMINATE AT
2
9
3
8
130 Ω
4
7
100 Ω
5
6
130 Ω
C2
C1
Z = 50 Ω
Z = 50 Ω
1 µH
1 µH
contiguous 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.
V
C3
CC
Z = 50 Ω
Z = 50 Ω
Z = 50 Ω
(+3.3 V)
10 µF
Board Layout - Hole Pattern
The Avago transceiver complies with the circuit board
“Common Transceiver Footprint” hole pattern defined in
the original multisource announcement which defined
the 2 x 5 package style. This drawing is reproduced in Fig-
ure 9 with the addition of ANSI Y14.5M compliant dimen-
sioning to be used as a guide in the mechanical layout of
your circuit board.
130 Ω
130 Ω
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 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.
V
DEVICE INPUTS
TERMINATE AT
82 Ω
CC
100 Ω
130 Ω
(+3.3 V)
TD-
TD+
RD+
RD-
SD
V
PHY DEVICE
CC
(+3.3 V)
LVPECL
LVPECL
V
CC
(+3.3 V)