摘要
直接数字频率合成器(DDS)作为关键器件被广泛应用在航空航天领域中。芯片在广阔的宇宙空间中易受到高能辐射粒子的影响,其中单粒子翻转(SEU)效应是一种十分常见的辐射效应,将导致电路功能异常甚至失效,这就要求DDS芯片能有非常强的抗辐照性能。提出一种基于三模冗余结构并具有自纠错功能的寄存器,将其应用在DDS的电路设计中,并将芯片的数字电路部分插入三模冗余结构,利用冗余结构去除掉故障电路对整个DDS芯片功能的影响,使得DDS芯片的抗辐照能力得到有效提升。
Direct digital frequency synthesizer(DDS)is widely used as a key component in the aerospace industry.The chip is susceptible to high-energy radiation particles in a wide space.The single event upset(SEU)effect is a very common radiation effect,which will lead to abnormal or even failure of the circuit.This requires DDS chip to have very strong anti-irradiation properties.A register based on three-mode redundant structure and self-correcting function is proposed,which is applied to the circuit design of DDS,and the digital circuit part of the chip is inserted into the three-mode redundant structure,and the redundant structure is used to remove the fault.The influence of the circuit on the function of the entire DDS chip makes the anti-irradiation capability of the DDS chip effectively improved.
作者
杨阳
陶建中
万书芹
邱丹
YANG Yang;TAO Jianzhong;WAN Shuqin;QIU Dan(School of Internet of Things Engineering,Jiangnan University,Wuxi 214122,China;China Electronics Technology Group Corporation No.58 Research Institute,Wuxi 214072,China)
出处
《电子与封装》
2019年第8期24-28,共5页
Electronics & Packaging
基金
国家自然科学基金(61704161)
关键词
直接数字频率合成
单粒子翻转
三模冗余
自纠错
抗辐照
direct digital frequency synthesizer
single event upset
triple-mode redundancy
self-correcting
anti-irradiation
