AFBR-57R6AEZ Avago Technologies US Inc., AFBR-57R6AEZ Datasheet - Page 4

• Manufacturer Part Number: AFBR-57R6AEZ
• Description: Fiber Optic Transmitters, Receivers, Transceivers Transceiver
• Manufacturer: Avago Technologies US Inc.
• Series: -r

Specifications of AFBR-57R6AEZ

• Product: Transceiver
• Data Rate: 4.25 GBd, 2.125 GBd, 1.0625 GBd, 1.25 GBd
• Wavelength: 860 nm (Max)
• Maximum Rise Time: 0.09 ns/0.15 ns
• Maximum Fall Time: 0.09 ns/0.15 ns
• Pulse Width Distortion: 0.06 ns (Max)/0.062 ns (Max)
• Maximum Output Current: 300 mA
• Operating Supply Voltage: 2.97 V to 3.63 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 10 C
• Package / Case: SFP
• Mounting Type: SFP
• Voltage - Supply: 2.97 V ~ 3.63 V
• Connector Type: LC Duplex
• Applications: Ethernet
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: Multimode Fiber
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

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Receiver Section
The receiver section includes the Receiver Optical Sub-
Assembly (ROSA) and the amplification/quantization
circuitry. The ROSA, containing a PIN photodiode and
custom transimpedance amplifier, is located at the optical
interface and mates with the LC optical connector. The
ROSA output is fed to a custom IC that provides post-
amplification and quantization.
Fibre Channel Rate Select (Rate_Select)
The AFBR-57R6AEZ transceiver contains a parametric
optimization circuit to ensure compliant performance
for 1.0625 Gb/s, 1.25 Gb/s, 2.125 Gb/s and 4.25 Gb/s data
rates. When Rate_Select (pin 7) is high, the transceiver
is optimized for 4.25G/2.125G/1.0625 G Fibre Channel
performance as defined in document SFF-8079 and ANSI
FC-PI-2. When Rate_Select is low (or open), the transceiver
is optimized for 2.125G/1.0625G Fibre Channel and 1.25G
Ethernet performance as defined in document SFF-8079
and INF-8074. Rate_Select can also be asserted via the
two-wire serial interface (address A2h, byte 110, bit 3) and
monitored (address A2h, byte 110, bit 4).
The contents of A2h, byte 110, bit 3 are logic OR’d with
hardware Rate_Select (pin 7) to control transmitter op-
eration.
Receiver Loss of Signal (Rx_LOS)
The post-amplification IC also includes transition detection
circuitry which monitors the ac level of incoming optical
signals and provides a TTL/CMOS compatible status signal
to the host (pin 8). An adequate optical input results in a
low Rx_LOS output while a high Rx_LOS output indicates
an unusable optical input. The Rx_LOS thresholds are fac-
tory set so that a high output indicates a definite optical
fault has occurred. Rx_LOS can also be monitored via the
two-wire serial interface (address A2h, byte 110, bit 1).
Functional Data I/O
The AFBR-57R6AEZ interfaces with the host circuit board
through twenty I/O pins (SFP electrical connector) identi-
fied by function in Table 2. The board layout for this interface
is depicted in Figure 6.
The AFBR-57R6AEZ high speed transmit and receive inter-
faces require SFP MSA compliant signal lines on the host
board. To simplify board requirements, biasing resistors and
ac coupling capacitors are incorporated into the SFP trans-
ceiver module (per SFF-8074i) and hence are not required
on the host board. The Tx_Disable, Tx_Fault, Rx_LOS, and
Rate_Select lines require TTL lines on the host board (per
SFF-8074i) if used. If an application chooses not to take
advantage of the functionality of these pins, care must be
taken to ground Tx_Disable (for normal operation).
Figure 2 depicts the recom mended interface circuit to
link the AFBR-57R6AEZ to supporting physical layer ICs.
Timing for MSA compliant control signals implemented
in the transceiver are listed in Figure 4.
Application Support
An Evaluation Kit and Reference Designs are available to
assist in evaluation of the AFBR-57R6AEZ. Please contact
your local Field Sales representative for availability and
ordering details.
Caution
There are no user serviceable parts nor maintenance re-
quirements for the AFBR-57R6AEZ. All mechanical adjust-
ments are made at the factory prior to shipment. Tampering
with, modifying, misusing or improperly handling the
AFBR-57R6AEZ will void the product warranty. It may also
result in improper operation and possibly overstress the la-
ser source. Performance degrada tion or device failure may
result. Connection of the AFBR-57R6AEZ to a light source
not compliant with ANSI FC-PI or IEEE 802.3 specifications,
operating above maximum operating conditions or in a
manner inconsistent with it’s design and function may
result in exposure to hazardous light radiation and may
constitute an act of modifying or manufacturing a laser
product. Persons performing such an act are required by
law to re-certify and re-identify the laser product under
the provisions of U.S. 21 CFR (Subchapter J) and TUV.
Ordering Information
Please contact your local field sales engineer or one of
Avago Technologies franchised distributors for order-
ing information. For technical information, please visit
Avago Technologies’ WEB page at www.avagotech.com or
contact Avago Technologies Semicon-ductor Products
Customer Response Center at 1-800-235-0312. For in-
formation related to SFF Committee documentation visit
www.sffcommittee.org.
Regulatory Compliance
The AFBR-57R6AEZ complies with all applicable laws
and regulations as detailed in Table 1. Certification level
is dependent on the overall configuration of the host
equipment. The transceiver performance is offered as a
figure of merit to assist the designer.
Electrostatic Discharge (ESD)
The AFBR-57R6AEZ is compatible with ESD levels found
in typical manufacturing and operating environments
as described in Table 1. In the normal handling and op-
eration of optical transceivers, ESD is of concern in two
circumstances.
The first case is during handling of the transceiver prior to
insertion into an SFP compliant cage. To protect the device,
it’s important to use normal ESD handling pre-cautions.
These include use of grounded wrist straps, work-benches
and floor wherever a transceiver is handled.
The second case to consider is static discharges to the
exterior of the host equipment chassis after installation.
If the optical interface is exposed to the exterior of host
equipment cabinet, the transceiver may be subject to
system level ESD requirements.