AFCT-57J5APZ Avago Technologies US Inc., AFCT-57J5APZ Datasheet - Page 2

• Manufacturer Part Number: AFCT-57J5APZ
• Description: SM BTS FP SFP Ind-Temp, RoHS
• Manufacturer: Avago Technologies US Inc.

Specifications of AFCT-57J5APZ

• Data Rate: 3.072Gbps
• Wavelength: 1310nm
• Applications: General Purpose
• Voltage - Supply: 2.97 V ~ 3.63 V
• Connector Type: LC Duplex
• Mounting Type: SFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Digital Diagnostic Interface and Serial Identification
The 2-wire serial interface is based on ATMEL AT24C01A
series EEPROM protocol and signaling detail. Conven-
tional EEPROM memory, bytes 0-255 at memory address
0xA0, is organized in compliance with INF-8074. New
digital diagnostic information, bytes 0-255 at memory
address 0xA2, is compliant to SFF-8472. The new diag-
nostic information provides the opportunity for Predic-
tive Failure Identification, Compliance Prediction, Fault
Isolation and Component Monitoring.
Predictive Failure Identification
The AFCT-57J5APZ predictive failure feature allows a host
to identify potential link problems before system perfor-
mance 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 ul-
tra-high system uptime is required, a digital SFP provides
a means to monitor two real-time laser metrics associ-
ated with observing laser degradation and predicting
failure: average laser bias current (Tx_Bias) and average
laser optical power (Tx_Power).
Compliance Prediction:
Compliance prediction is the ability to determine if an
optical transceiver is operating within its operating and
environmental requirements.
Figure 1 . Transceiver Functional Diagram
2
Optical Interface
Light from Fiber
Light to Fiber
Receiver
Transmitter
Photo-Detector
AFCT-57J5APZ devices
FP Laser
CONTROLLER
EEPROM
Amplification
Quantization
&
Laser Driver &
Safety Circuit
EEPROM
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 re-
quirements, the link cannot guarantee error free trans-
mission.
Fault Isolation
The fault isolation feature allows a host to quickly
pinpoint the location of a link failure, minimizing
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. AFCT-57J5APZ
real-time monitors of Tx_Bias, Tx_Power, Vcc, Tempera-
ture and Rx_Power can be used to assess local transceiv-
er current operating conditions. In addition, status flags
Tx_Disable and Rx Loss of Signal (LOS) are mirrored in
memory and available via the two-wire serial interface.
Component Monitoring
Component evaluation is a more casual use of the AF-
CT-57J5APZ real-time monitors of Tx_Bias, Tx_Power,
Vcc, Temperature and Rx_Power. Potential uses are as
debugging aids for system installation and design, and
transceiver parametric evaluation for factory or field
qualification. For example, temperature per module can
be observed in high density applications to facilitate
thermal evaluation of blades, PCI cards and systems.
Electrical Interface
TD+ (Transmit Data)
TD- (Transmit Data)
TX_FAULT
TX_DISABLE
Rate Select
RD+ (Receive Data)
RD- (Receive Data)
Rx Loss Of Signal
MOD-DEF2 (SDA)
MOD-DEF1 (SCL)
MOD-DEF0