Relationship Between Noise Figure and Equivalent Input Noise Current Spectral Density for Optical Receiver Design  

光接收机前端等效输入噪声电流谱密度与噪声系数间的关系(英文)

作　　者：孙玲[1] 王志功[1] 景为平[2] 高建军[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 [2]南通大学江苏省专用集成电路设计重点实验室,南通226007

出　　处：《Journal of Semiconductors》2006年第12期2085-2088,共4页半导体学报（英文版）

基　　金：江苏省高技术研究计划(批准号:BG2005022);江苏省高校重点实验室开放课题(批准号:JSICK0403)资助项目~~

摘　　要：Based on the equivalent circuit model of a two-port optical receiver front-end,the relationship between the equivalent input noise current spectral density and the noise figure is analyzed. The derived relationship has universal validity for determining the equivalent input noise current spectral density for optical receiver designs, as verified by measuring a 155Mb/s high-impedance optical receiver front.end. Good agreement between calculated and simulated results has been achieved.根据光接收机前端等效电路模型,建立了噪声系数与等效输入噪声电流谱密度的关系.提出通过测量光接收机前端电路噪声系数间接获得等效输入噪声电流谱密度的方法.155 Mb/s高阻结构光接收机前置放大器的电路仿真与计算验证了推导公式的正确性.最后给出在芯片测试实例.

关 键 词：optical receiver noise figure equivalent input noise current 

分 类 号：TN855[电子电信—信息与通信工程]