2.5Gbit/s0.35μmCMOS激光驱动器  

2.5 Gbit/s 0.35 μm CMOS laser dio de driver

作　　者：李连鸣[1] 黄頲[1] 冯军[1] 熊明珍[1] 王志功[1] 

机构地区：[1]东南大学射频与光电集成电路研究所,南京210096

出　　处：《东南大学学报（自然科学版）》2004年第4期423-425,共3页Journal of Southeast University：Natural Science Edition

基　　金：国家高技术研究发展计划 ( 863计划 ) ( 2 0 0 1AA3 12 0 10 )

摘　　要：设计了一种具有自动功率控制功能的激光驱动器电路 .为了获得良好的性能 ,该驱动器采用级联差分放大器和源极跟随器分别进行信号放大和级间阻抗匹配 .该电路的实现采用了 0 .35 μm标准CMOS工艺 .对该电路进行了测试 ,测试结果表明 ,在 2 .5和 5Gbit/s速率下 ,电路输出信号眼图清晰 .在 5V电源电压、2 .5Gbit/s数据速率下 ,该驱动器可提供 0～ 68mA范围内的调制电流 ,满足长距离光纤通信系统的要求 .电路典型功耗 480mW ,芯片面积为 0 .5 7mm2 .A laser diode driver with auto power control function has been developed. To achieve good performance, the driver utilizes cascaded differential amplifiers and source followers for signal amplification and impedance match respectively. The driver was implemented in 0.35 μm standard CMOS process and has been tested. According to the electric experimental results, the driver works well at 2.5 Gbit/s and 5 Gbit/s under 5 V supply voltage, consuming typical power of 480 mW. The driver can offer modulation current in the range of 0 to 68 mA at 2.5 Gbit/s, which meets the requirements of long-haul optical-fiber communication. The chip area is 0.57 mm2.

关 键 词：光纤通讯 激光驱动器 自动功率控制 

分 类 号：TN492[电子电信—微电子学与固体电子学]