| 引用本文: | 赵振宇,郭斌,张民选,等.一款0.18μm CMOS辐射加固差分压控振荡器.[J].国防科技大学学报,2009,31(6):12-17.[点击复制] |
| ZHAO Zhenyu,GUO Bin,ZHANG Minxuan,et al.A Radiation-hardened-by-design Differential Voltage-controlled Oscillator Implemented in 0.18μm CMOS Process[J].Journal of National University of Defense Technology,2009,31(6):12-17[点击复制] |
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| 一款0.18μm CMOS辐射加固差分压控振荡器 |
| 赵振宇, 郭斌, 张民选, 刘衡竹 |
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(国防科技大学 计算机学院，湖南 长沙 410073)
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| 摘要: |
| 基于对称负载压控振荡器(VCO)的单粒子瞬变(SET)失效机理，应用设计加固(RHBD)技术分别改进了偏置电路和环形振荡器，设计和实现了一款0.18μm CMOS辐射加固差分VCO。模拟结果表明：加固VCO的SET敏感性大幅降低，同时还降低了抖动对于电源噪声的敏感性。虽然电路结构变化会导致频率下降，但可以通过调整电路尺寸而解决。此外，加固VCO面积开销有所降低，优于其他加固方法。 |
| 关键词: 单粒子效应 单粒子瞬变 压控振荡器 RHBD |
| DOI： |
| 投稿日期：2009-07-03 |
| 基金项目:国家自然科学基金资助项目(60836004，60676010，60876024)；教育部博士点基金资助项目(20079998015)；教育部“高性能微处理器技术”创新团队资助项目(IRT0614) |
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| A Radiation-hardened-by-design Differential Voltage-controlled Oscillator Implemented in 0.18μm CMOS Process |
| ZHAO Zhenyu, GUO Bin, ZHANG Minxuan, LIU Hengzhu |
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(College of Computer, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Applying the radiation-hardened-by-design (RHBD) technique to improve the bias generator and the ring oscillator of the differential voltage-controlled oscillator (VCO) with symmetrical loads, a single-event transient (SET) hardened VCO was designed and implemented in 0.18 μm CMOS process based on the failure mechanisms. Simulation results indicate that the single-event susceptibility of the VCO is significantly reduced. Simultaneously, it also reduces the jitter sensitivity to supply noise. This new VCO topology results in a decrease in the frequency, but it can be figured out by adjusting the sizes of the delay buffer. Furthermore, the radiation hardened VCO leads to a decreased area requirement. |
| Keywords: single-event effects single-event transients voltage-controlled oscillators RHBD(Radiation-hardened-by-design |
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