AFCT-721XPDZ Avago Technologies US Inc., AFCT-721XPDZ Datasheet - Page 2

• Manufacturer Part Number: AFCT-721XPDZ
• Description: NORA XFP 10km 10GFC/10GbE 0-70
• Manufacturer: Avago Technologies US Inc.
• Series: -r

Specifications of AFCT-721XPDZ

• Data Rate: 10.625Gbps
• Wavelength: 1310nm
• Applications: General Purpose
• Voltage - Supply: 3.135 V ~ 3.465 V
• Connector Type: LC Duplex
• Mounting Type: Panel Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

The product also offers digital diagnostics using the 2-
wire serial interface defined in the XFP MSA. The prod-
uct 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, re-
ceiver loss of signal and module not ready are also hard
wired pins on the 30-pin right angle connector.
Installation
The AFCT-721XPDZ can be installed in any XFP port re-
gardless of host equipment operating status. The AFCT-
721XPDZ is hot-pluggable, allowing the module to be
installed while the host system is operating and on-line.
The clip-on 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 po-
tential 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 ef-
fective thermal path for module heat.
Figure 1. Transceiver Functional Diagram

TOSA
ROSA
isolator
Optical
PIN
TIA
TIA
Laser
Main housing
Mon. PIN
Heat sink
CW
driver
Th
driver
ESA
RF
control
Power
supply
Eye opener
Functional Description
Transmitter Section
The transmitter section includes a 1310 nm DFB (Dis-
tributed 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 la-
ser output via the monitor photodiode. This IC provides
both DC and AC current drive to the laser to ensure cor-
rect modulation, eye diagram and extinction ratio over
temperature, supply voltage and operating life.
TX_DIS
Asserting pin 5, TX_DIS, will disable the transmitter opti-
cal output. The transmitter output can also be disabled
and monitored via the two-wire serial interface.
Eye Safety Circuit
Under normal operating conditions laser power will be
maintained below Class 1 eye-safety limits.
(CDR)
Eye opener
(CDR)
EEPROM
controller
Micro
A/D
+3.3V
Digital low speed
bus or signal
Digital 10 Gb/s
electrical signal
Analog low
speed signal