AFBR-59M5LZ Avago Technologies US Inc., AFBR-59M5LZ Datasheet - Page 2

• Manufacturer Part Number: AFBR-59M5LZ
• Description: TXRX OPT 850NM SFF 2X6
• Manufacturer: Avago Technologies US Inc.

Specifications of AFBR-59M5LZ

• Applications: Ethernet
• Data Rate: 2.215Gbd
• Wavelength: 850nm
• Voltage - Supply: 2.97 V ~ 3.63 V
• Connector Type: LC Duplex
• Mounting Type: Through Hole
• Data Rate Max: 2.125Gbps
• Supply Voltage: 3.3V
• Wavelength Typ: 850nm
• Leaded Process Compatible: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

This information is in addition to conventional SFP/GBIC
base data. The digital diagnostic interface also adds the
ability to disable the transmitter (TX_DISABLE), monitor
for Transmitter Faults (TX_FAULT) and monitor for Receiver
Signal Detect (Sig_Det).
Digital Diagnostic Interface and Serial Identification
The 2-wire serial interface is based on ATMEL AT24C01A
series EEPROM protocol and signaling detail. Convention-
al EEPROM memory, bytes 0-255 at memory address 0xA0,
is organized in compliance with SFF-8074i. New digital
diagnostic information, bytes 0-255 at memory address
0xA2, is compliant to SFF-8472. The new diagnostic in-
formation provides the opportunity for Predictive Failure
Identification, Compliance Prediction, Fault Isolation and
Component Monitoring.
Predictive Failure Identification
The predictive failure feature allows a host to identify
potential link problems before system performance is
impacted. Prior identification of link problems enables a
host to service an application via “fail over” to a redundant
link or replace a suspect device, maintaining system
uptime in the process. For applications where ultra-
high system uptime is required, a digital SFF provides a
means to monitor two real-time laser metrics associated
with observing laser degradation and predicting failure:
average laser bias current (Tx_Bias) and average laser
optical power (Tx_Power).
Figure 1. Transceiver Functional Diagram
2
OPTICAL INTERFACE
Light from Fibre
Light to Fibre
RECEIVER
TRANSMITTER
Photo-Detector
VCSEL
Amplification
Quantization
Controller
Memory
&
&
Safety Circuit
Laser Driver
Compliance Prediction:
Compliance prediction is the ability to determine if an
optical transceiver is operating within its operating and en-
vironmental requirements. AFBR-59M5LZ devices provide
real-time access to transceiver internal supply voltage
and temperature, allowing a host to identify potential
component compliance issues. Received optical power is
also available to assess compliance of a cable plant and
remote transmitter. When operating out of requirements,
the link cannot guarantee error free transmission.
Fault Isolation
The fault isolation feature allows a host to quickly pinpoint
the location of a link failure, minimizing system downtime.
For optical links, the ability to identify a fault at a local
device, remote device or cable plant is crucial to speeding
service of an installation. AFBR-59M5LZ real-time monitors
of Tx_Bias, Tx_Power, Vcc, Temp and Rx average power can
be used to assess local transceiver current operating con-
ditions. In addition, status flags Tx Disable and Rx Signal
Detect are mirrored in memory and available via the
two-wire serial interface.
&
ELECTRICAL INTERFACE
RD+ (Receive Data)
RD– (Receive Data)
Signal Detect
MOD-DEF2 (SDA)
MOD-DEF1 (SCL)
TX_DISABLE
TD+ (Transmit Data)
TD– (Transmit Data)