afct-57m5atp ETC-unknow, afct-57m5atp Datasheet - Page 3

• Manufacturer Part Number: afct-57m5atp
• Description: 2/1/1 Gbd Sfp Transceiver For Fibre Channel And Gbe, Digital Diagnostic, Ext Temp -10c To +85c
• Manufacturer: ETC-unknow

Transmitter Section
The transmitter section
includes a 1310 nm Fabry-
Perot laser and a transmitter
driver circuit. The driver
circuit maintains a constant
optical power level provided
that the data pattern is valid
8B/10B code. Connection to
the transmitter is provided via
a LC optical connector.
TX_DISABLE
The transmitter output can be
disabled by asserting pin 3,
TX_DISABLE. A high signal
asserts this function while a
low signal allows normal laser
operation. The transmitter
output can also be disabled
and monitored via the two-
wire serial. In the event of a
transceiver fault, such as the
activation of the eye safety
circuit, toggling of the
TX_DISABLE will reset the
transmitter as depicted in
Figure 4.
TX_FAULT
A laser fault or a low V
condition will activate the
transmitter fault signal,
TX_FAULT, and disable the
laser. This signal is an open
collector output (pull-up
required on the host board); A
low signal indicates normal
laser operation and a high
signal indicates a fault. The
TX_FAULT will be latched high
when a laser fault occurs and
is cleared by toggling the
TX_DISABLE input or power
cycling the transceiver. The
TX_FAULT is not latched for
Low V
fault condition can also be
monitored via the two-wire
serial interface (address A2,
byte 110, bit 2).
3
CC
. The transmitter
CC
Eye Safety Circuit
Under normal operating
conditions, the laser power
will be maintained below the
eye-safety limit. If the eye-
safety limit is exceeded at any
time, a laser fault will occur
and the TX_FAULT output will
be activated.
Receiver Section
Connection to the receiver is
provided via a LC optical
connector.
RX_LOS
The receiver section contains a
loss of signal (RX_LOS) circuit
to indicate when the optical
input signal power is
insufficient for Fibre Channel
compliance. A high signal
indicates loss of modulated
signal, indicating link failure
such as a broken fiber or a
failed transmitter. RX_LOS
can be also be monitored via
the two-wire serial (address
A2, byte 110, bit 1).
Functional Data I/O
Agilent’s AFCT-57M5ATP fiber-
optic transceiver is designed to
accept industry standard
differential signals. The
transceiver provides an ac-
coupled, internally terminated
data interface. Bias resistors
and coupling capacitors have
been included within the
module to reduce the number
of components required on the
customer’s board. Figure 2
illustrates the recommended
interface circuit.
Application Support
An Evaluation Kit and
Reference Designs are available
to assist in evaluation of the
AFCT-57M5ATP.
Please contact your local Field
Sales representative for
availability and ordering
details.
Caution
The AFCT-57M5ATP contains
no user serviceable parts.
Tampering with or modifying
the performance of the AFCT-
57M5ATP will result in voided
product warranty. It may also
result in improper operation of
the AFCT-57M5ATP circuitry,
and possible overstress of the
laser source. Device
degradation or product failure
may result. Connection of the
AFCT-57M5ATP to a non-
approved optical source,
operating above the
recommended absolute
maximum conditions may be
considered an act of modifying
or manufacturing a laser
product. The person(s)
performing such an act is
required by law to recertify
and reidentify the laser
product under the provisions
of U.S. 21 CFR (Subchapter J)
and the TUV.
Ordering Information
Please contact your local field
sales engineer or one of
Agilent Technologies franchised
distributors for ordering
information. For technical
information, please visit
Agilent Technologies’ WEB
page at www.agilent.com or
contact Agilent Technologies
Semiconductor Products
Customer Response Center at
1-800-235-0312. For
information related to SFF
Committee documentation visit
www.sffcommittee.org