HFCT-711XPD Avago Technologies US Inc., HFCT-711XPD Datasheet - Page 2

• Manufacturer Part Number: HFCT-711XPD
• Description: TXRX SMF XFP 10BGE 2KM OC-192
• Manufacturer: Avago Technologies US Inc.

Specifications of HFCT-711XPD

• Data Rate: 10.52Gbps
• Wavelength: 1310nm
• Applications: General Purpose
• Voltage - Supply: 3.135 V ~ 3.465 V
• Connector Type: LC Duplex
• Mounting Type: Panel Mount
• Function: Transceiver for Multirate SONET OC-192 SR1, 10G Base-LR and 10G FC
• Product: Transceiver
• Maximum Rise Time: 24 ps
• Maximum Fall Time: 24 ps
• Operating Supply Voltage: 3.135 V to 3.465 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 5 C
• Package / Case: XFP-30
• For Use With: Singlemode Glass
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

The product offers digital diagnostics using the 2-wire
serial interface defined in the XFP MSA. The product
provides real time temperature (module and laser), supply
voltage, laser bias current, laser average output power
and received input power. The digital diagnostic interface
also adds the ability to disable the transmitter (TX_DIS),
power down the module, monitor for module faults and
monitor for Receiver Loss of Signal (RX_LOS). Transmitter
disable, interrupt, power down/reset, receiver loss of
signal and module not ready are also hard wired pins on
the 30-pin right angle connector.
Installation
The HFCT-711XPD is hot-pluggable, allowing the module
to be installed while the host system is operating and
on-line. The attach heatsink is designed to clip on to the
XFP cage without a module present.
Upon insertion, the transceiver housing makes initial
contact with the host board XFP cage, mitigating potential
damage due to Electro-Static Discharge (ESD). Once fully
inserted into the XFP cage, the top surface of the XFP
module makes contact with the heatsink through a
cutout in the top of the cage ensuring an effective
thermal path for module heat.
Figure 1. Transceiver Functional Diagram
2
PIN
Laser
TIA
TIA
Main housing
Mon. PIN
TOSA
ROSA
driver
RF
Heat sink
CW
driver
ESA
Power
control
supply
Conditioner
Functional Description
Transmitter Section
The transmitter section includes a 1310 nm DFB
(Distributed Feedback Laser) light source, a transmitter
driver circuit and a signal conditioner circuit on the TX
data inputs. (See Figure 1) Optical connection to the
transmitter is provided via a LC connector. The optical
output is controlled by a custom IC that detects the laser
output via the monitor photodiode. This IC provides both
dc and ac current drive to the laser to ensure correct
modulation, eye diagram and extinction ratio over
temperature, supply voltage and operating life.
TX_DIS
Asserting pin 5, TX_DIS, will disable the transmitter optical
output. The transmitter output can also be disabled and
monitored via the two-wire serial.
Eye Safety Circuit
Under normal operating conditions laser power will be
maintained below Class 1 eye-safety limits. Should a
catastrophic laser fault occur and optical power become
uncontrolled, the micro-controller will detect the fault,
shut down the laser, power down the module and assert
the hard-wired MOD_NR flag. The TX_FAULT output in
the 2-wire serial interface will also be asserted.
Signal
Conditioner
Signal
EEPROM
controller
Micro
A/D
+3.3V
Digital low
Digital 10
Gb/s electrical
speed bus or
signal
I/O
Analog signal
Analog bus