面向宇航用激光器驱动芯片的可编程连续时间均衡器设计  

An adaptive continue time liner equalizer for laser diode driver in the aerospace date communications

作　　者：吕琛 陈雷 冯长磊 周骥 孙珊珊 秦之斌 李妍艳 LYU Chen;CHEN Lei;FENG Changlei;ZHOU Ji;SUN Shanshan;QIN Zhibin;LI Yanyan(Beijing Institute of Microelectronics Technology,Beijing 100076,China)

机构地区：[1]北京微电子技术研究所,北京100076

出　　处：《集成电路与嵌入式系统》2025年第1期12-17,共6页Integrated Circuits and Embedded Systems

摘　　要：随着数据密集型任务日益增多,宇航激光器驱动芯片的通信速率需求已达百Gb/s量级,其主要研制难点在于克服由抗辐照、高可靠设计引入的特殊结构极大程度造成的高频信号损耗。提出了一种自适应可调谐连续时间均衡器设计方法,基于SiGe BiCMOS工艺对电路交流和传输特性进行理论计算及仿真验证,设计指标可满足14 GHz下最高16 dB的传输损耗补偿,具备自适应增益补偿调节能力,最高支持25 Gb/s的NRZ信号传输。As the rapid growth of the signal bandwidth in aerospace data communications,the data rate of laser diode driver(LDD)in aerospace optical fiber communication has enter the era of hundred-gigabits.For the sake of radiation harden and high reliability design,the introduction of extra parasitic factor requires more efforts in the circuit design to compensate the loss of bandwidth at high frequency.This work proposes an adaptive continue time linear equalizer(CTLE)which is based on a SiGe BiCMOS platform giving a programmable loss compensating capability up to 16 dB at 14 GHz.It has the capable of adaptive gain compensation adjustment,supporting up to 25 Gb/s NRZ signal transmission.

关 键 词：激光器驱动器 宇航用光模块 连续时间均衡器 高通滤波器 低通滤波器 

分 类 号：TN495[电子电信—微电子学与固体电子学]