1. 南开大学 电子信息与光学工程学院,天津,300350
2. 中国科学院 机构 微电子研究所,北京,100029
3. 中国科学院大学 机构,北京,101408
纸质出版:2017
移动端阅览
孙雅芃, 谢正章, 赵慧冬, 乔树山, 黑勇, 张福海. 一种基于相对延时比模型的全数字时钟电路产生器[J]. 微电子学与计算机, 2017, 34(6): 49-53.
SUN Ya-peng, XIE Zheng-zhang, ZHAO Hui-dong, et al. An All-Digital Clock Generator Using Relative Delay Ratio Modeling[J]. 2017, 34(6): 49-53.
设计了一种应用于低功耗领域的基于相对延时比模型的全数字时钟生成器
解决了环形振荡器产生振荡周期受到工艺偏差、环境温度偏移和供电电压抖动等因素影响的问题.该时钟生成器由相对延时比生成器、映射译码单元和数字控制振荡器组成.一款10~40 MHz频率可调节的全数字时钟电路生成器基于smic180 nm CMOS工艺库
整个芯片面积(除IO pad)为1.02 mm.测试结果表明
当目标频率设定为25 MHz
在供电电压在1.6~2 V
环境温度在0~80℃变化时
该时钟生成器的最大输出频率误差为3%
输出时钟相位噪声在1 MHz频偏处为-114.82 dBc/Hz
具有良好的频率稳定性.
Using the relative delay ratio modeling
an all-digital clock generator which is used for low power applications is proposed. It overcomes the effects of process
voltage and temperature (PVT) variations. The clock generator is composed of delay ratio evaluator
mapper block and digitally controlled oscillator. A 10~40MHz adjustable clock generator is implemented in smic 180nm CMOS technology with 1.02mm (excluding IO pad). The measured results show that the worst output frequency error is less than 3% at 25MHz
with 1.6~2V supply voltage
0~80℃ temperature variation. The phase noise of output clock is -114.82dBc/Hz at 1MHz offset with high stability performance.
Tsai C, Li W, Chen P. On-chip reference oscillators with process, supply voltage and temperature compensation[C]// International Symposium on Next-generation Electronics. IEEE, 2010.
Dutta S, Shetti S, Lusky S. A comprehensive delay model for CMOS inverters[J]. IEEE Journal of Solid-State Circuits, 1995, 30(8): 864-871. DOI: 864
Gautam D, Macha H, Kumar M. A cognitive approach for safe sodium phosphate enema administration by implementing wireless body area network[J]. International Journal of Computer Applications, 2012, 57(13): 1-4. DOI: 1
Tokunaga Y. An on-chip CMOS relaxation oscillator with voltage averaging feedback[J]. IEEE Journal of Solid-State Circuits, 2010, 45(6): 1150-1158. DOI: 1150
Chung C C, Li J W. An all-digital on-chip silicon oscillator with automatic VT range selection relative modeling[C]// IEEE Int. Symposium Circuits System. IEEE, 2013 : 2682-2685.
Jiménez Naharro R, Gómez Galán J A, Sánchez-Raya M, et al. Design and implementation of a new real-time frequency sensor used as hardware countermeasure[J]. nsors (Basel), 2013, 13(9): 11709-11727. DOI: 11709
Bisdounis L. Analytical transient response and propagation delay evaluation of the CMOS inverter for short-channel devices[J]. Solid-State Circuits, IEEE Journal of, 1998, 33(2): 302-306. DOI: 302
0
浏览量
14
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010602201714号