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
吕琛 1陈雷 1冯长磊 1周骥 1孙珊珊 1秦之斌 1李妍艳1
作者信息
- 1. 北京微电子技术研究所,北京 100076
- 折叠
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.
Abstract
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 programma-ble 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Key words
laser driver/aerospace optical module/continuous time equalizer/high-pass filter/low-pass filter引用本文复制引用
出版年
2025
国家科技期刊平台
NSTL
万方数据