AFBR-720XPDZ 10GbE XFP 850 nm 10Gbps Optical Transceiver Data Sheet Description Features The 850 nm XFP transceiver is a high performance, cost RoHS 6/6 Compliance effective module for serial optical data communications Compliant to XFP MSA applications specified for signal rates of 9.9 Gb/s to 10.5 Compliant to IEEE 802.3ae 10GBASE-SR for 10GbE, Gb/s. It is compliant to XFP MSA Rev 4.5. The module is 10.3125 Gb/s designed for multi mode fiber and operates at a nominal Compliant XFI 10G Serial electrical interface wavelength of 850 nm. The transmitter section incorpo- 3.3V single power supply rates Avago Technologies 850 nm Vertical Cavity Surface Avago Technologies 850 nm VCSEL Laser and PIN Emitting Laser (VCSEL). The receiver section uses Avago Photodiode Technologies MOVPE grown planar SEDET PIN photo- No reference clock required detector for low dark current and excellent responsivity. LC Duplex optical connector interface conforming to Integrated Tx and Rx signal conditioners provide high ANSI TIA/EIA604-10 (FOCIS 10) jitter-tolerance for full XFI compliance. The internally ac 1.5W maximum coupled high speed serial I/O simplifies interfacing to Link Lengths up to 300 m with 0M3 fiber external circuitry. The electrical interface is made using 0 to +70 C case operating temperature range an industry standard 0.8 mm pitch 30-pin right angle Superior Thermal and EMI integrity performance to sup- connector. Optical connection is made via the duplex LC port high port densities connector. Customizable clip-on heatsink to support a variety of The product also offers digital diagnostics using the 2- line card environments wire serial interface defined in the XFP MSA. The product IEC 60825-1 Class 1/CDRH Class 1 laser eye safety provides real time temperature (module and laser), sup- ply voltage, laser bias current, laser average output power Applications and received input power. The digital diagnostic interface Fiber Channel Switches also adds the ability to disable the transmitter (TX DIS), Host Bus Adapter Cards power down the module, monitor for module faults and Mass Storage System and Server I/O monitor for Receiver Loss of Signal (RX LOS). Transmitter Ethernet Switches disable, interrupt, power down/reset, receiver loss of sig- nal and module not ready are also hard wired pins on the Core Routers 30-pin right angle connector. Patent - www.avagotech.com/patents Installation The AFBR-720XPDZ can be installed in any XFP port re- output is controlled by an IC that detects the laser output gardless of host equipment operating status. The AFBR- via the monitor photodiode. This IC provides both dc and 720XPDZ is hot-pluggable, allowing the module to be ac current drive to the laser to ensure correct modulation, installed while the host system is operating and on-line. eye diagram and extinction ratio over temperature, sup- ply voltage and operating life. Upon insertion, the transceiver housing makes initial contact with the host board XFP cage, mitigating poten- TX DIS tial damage due to Electro-Static Discharge (ESD). Once Asserting pin 5, TX DIS, will disable the transmitter opti- fully inserted into the XFP cage, the top surface of the cal output. The transmitter output can also be disabled XFP module makes contact with the heatsink through a and monitored via the two-wire serial interface. cutout in the top of the cage ensuring an effective ther - mal path for module heat. Eye Safety Circuit Under normal operating conditions laser power will be Functional Description maintained below Class 1 eye-safety limits. Should a Transmitter Section catastrophic laser fault occur and optical power become The transmitter section includes a 850 nm VCSEL (Vertical uncontrolled, the micro-controller and laser driver IC Cavity Surface Emitting Laser) light source, a transmit- will detect the fault, shut down the laser, power down ter driver circuit and a signal conditioner circuit on the the module and assert the hard-wired MOD NR flag. The TX data inputs. (see Figure 1) Optical connection to the TX FAULT output in the 2-wire serial interface will also be transmitter is provided via a LC connector. The optical asserted. Heat sink Analog bus +3.3V Signal Laser RF Conditioner driver CW driver Mon. PIN Digital 10 Gb/s electrical TOSA I/O EEPROM Micro controller Digital low speed bus or A/D Power signal supply PIN control TIATIA Analog signal ROSA Signal Conditioner Main housing ESA Figure 1. Transceiver Functional Diagram 2 Optical receptacles Analog signal conditioners Electrical connector