AFBR-720XPDZ Avago Technologies US Inc., AFBR-720XPDZ Datasheet - Page 2

• Manufacturer Part Number: AFBR-720XPDZ
• Description: TXRX OPT XFP 10GB/S 850NM
• Manufacturer: Avago Technologies US Inc.

Specifications of AFBR-720XPDZ

• Wavelength: 850nm
• Data Rate: 10Gbps
• Applications: Networking
• Voltage - Supply: 3.3V
• Connector Type: XFP
• Mounting Type: Through Hole
• Product: Transceiver
• Maximum Rise Time: 0.024 ns (Min)
• Maximum Fall Time: 0.024 ns (Min)
• Operating Supply Voltage: 3.135 V to 3.465 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Package / Case: XFP
• Rohs Compliant: Yes
• Data Rate Max: 10.3125Gbps
• Supply Voltage: 3.3V
• Wavelength Typ: 850nm
• Peak Reflow Compatible (260 C): Yes
• Leaded Process Compatible: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 516-1996

Installation
The ��BR-720���DZ can be ins��alled in any ���� por�� re-
gardless of hos�� equipmen�� opera��ing s��a��us. The ��BR-
720���DZ is ho��-pluggable, allowing ��he module ��o be
ins��alled while ��he hos�� sys��em is opera��ing and on-line.
Upon inser��ion, ��he ��ransceiver housing makes ini��ial
con��ac�� wi��h ��he hos�� board ���� cage, mi��iga��ing po��en-
��ial damage due ��o Elec��ro-S��a��ic Discharge (ESD). Once
fully inser��ed in��o ��he ���� cage, ��he ��op surface of ��he
���� module makes con��ac�� wi��h ��he hea��sink ��hrough a
cu��ou�� in ��he ��op of ��he cage ensuring an effec��ive ��her-
mal pa��h for module hea��.
Functional Description
Transmitter Section
The ��ransmi����er sec��ion includes a 850 nm VCSEL (Ver��ical
Cavi��y Surface Emi����ing Laser) ligh�� source, a ��ransmi��-
��er driver circui�� and a signal condi��ioner circui�� on ��he
T� da��a inpu��s. (see �igure ) Op��ical connec��ion ��o ��he
��ransmi����er is provided via a LC connec��or. The op��ical
Figure 1. Transceiver Functional Diagram
2
PIN
Laser
TIA
TIA
Main housing
Mon. PIN
TOSA
ROSA
driver
RF
driver
Heat sink
CW
ESA
control
Power
supply
Conditioner
Signal
Conditioner
ou��pu�� is con��rolled by an IC ��ha�� de��ec��s ��he laser ou��pu��
via ��he moni��or pho��odiode. This IC provides bo��h dc and
ac curren�� drive ��o ��he laser ��o ensure correc�� modula��ion,
eye diagram and ex��inc��ion ra��io over ��empera��ure, sup-
ply vol��age and opera��ing life.
TX_DIS
�sser��ing pin 5, T�_DIS, will disable ��he ��ransmi����er op��i-
cal ou��pu��. The ��ransmi����er ou��pu�� can also be disabled
and moni��ored via ��he ��wo-wire serial in��erface.
Eye Safety Circuit
Under normal opera��ing condi��ions laser power will be
main��ained below Class  eye-safe��y limi��s. Should a
ca��as��rophic laser faul�� occur and op��ical power become
uncon��rolled, ��he micro-con��roller and laser driver IC
will de��ec�� ��he faul��, shu�� down ��he laser, power down
��he module and asser�� ��he hard-wired �OD_NR flag. The
T�_��ULT ou��pu�� in ��he 2-wire serial in��erface will also be
asser��ed.
Signal
EEPROM
controller
Micro
A/D
+3.3V
Digital 10
Gb/s electrical
I/O
Digital low
speed bus or
signal
Analog bus
Analog signal