发送部分采用Avago 的850 nm垂直腔体表面发光激光器 (VCSEL)，接收部分则采用MOVPE 的平面SEDET光电检测器，具有极好的暗电流和响应性能。此外模块还集成了Tx和Rx信号调理，具有高抖动容差，完全和XFI兼容。模块广泛应用在光纤通路交换，主总线适配器卡，海量存储系统和服务器的 I/O，以太网交换和骨干路由器。
本文介绍了AFBR-720XPDZ的主要性能以及功能方框图，MSA 推荐的电源滤波器和在10Gb以太网应用中的配置。
AFBR-720XPDZ 10GbE XFP 850 nm 10Gbps Optical Transceiver
The 850 nm XFP transceiver is a high performance, cost effective module for serial optical data communications applications specified for signal rates of 9.9 Gb/s 10.5 Gb/s. It is compliant tRev 4.5. The module is designed for multi mode fiber and operates at a nominal wavelength of 850 nm. The transmitter section incorpo¬rates Avago Technologies’ 850 nm Vertical Cavity Surface Emitting Laser (VCSEL). The receiver section uses Technologies’ MOVPE grown planar SEDET photo¬detector for low dark current and excellent responsivity. Integrated Tx and Rx signal conditioners provide high jitter-tolerance for full XFI compliance. The internally ac coupled high speed serial I/O simplifies interfacing external circuitry. The electrical interface is made using an industry standard 0.8 mm pitch 30-pin right angle connector. Optical connection is made via the duplex LC connector.
The product also offers digital diagnostics using 2-wire serial interface defined in XFP MSA. The product provides real time temperature (module and laser), sup¬ply voltage, laser bias current, laser average output power and received input power. The digital diagnostic interface also adds the ability to disable transmitter (TX_DIS), power down module, monitor for module faults and monitor for Receiver Loss of Signal (RX_LOS). Transmitter disable, interrupt, power down/reset, receiver loss of sig¬nal and module not ready are also hard wired pins on the 30-pin right angle connector.
主要特性：
RoHS 6/6 Compliance
Compliant to XFP MSA
Compliant to IEEE 802.3ae 10GBASE-SR for 10GbE, 10.3125 Gb/s
Complian XFI 10G Serial electrical interface
3.3V single power supply
Avago Technologies’ 850 nm VCSEL Laser and PIN Photodiode
No reference clock required
LC Duplex optical connector interface conforming to ANSITIA/EIA604-10 (FOCIS 10)
1.5W maximum
Link Lengths up to 300 m with 0M3 fiber
0 to +70°C case operating temperature range
Superior Thermal and EMI integrity performance to support high port densities
Customizable clip-on heatsink to support a variety of line card environments
IEC 60825-1 Class 1/CDRH Class 1 laser eye safety
应用：
Fiber Channel Switches
Host Bus Adapter Cards
Mass Storage System and Server I/O
Ethernet Switches
Core Routers
图1 AFBR-720XPDZ收发器功能方框图
图2 MSA 推荐的电源滤波器
图3 AFBR-720XPDZ 在10Gb以太网应用中的配置