基于CMOS工艺的开关电容滤波器设计
发布时间：2019-01-14 10:54
【摘要】：在信号处理技术中,双音多频信号在程控话路系统、自动控制系统占有重要地位。而滤波器在双音多频信号的传输系统中又起到了决定性作用,滤波器性能的优劣决定了接收端处理双音多频信号的效果。开关电容滤波器在滤波器领域占据极重要的地位,其在电路设计中更适合应用CMOS工艺制作。作为集成滤波器的主流技术,CMOS工艺开关电容技术是目前最有效的可实现SoC电路的热点技术之一。本文基于CSMC 0.5μm CMOS工艺,利用Cadence仿真软件,通过双二阶多级串联方式和Z域合成法分别设计了一款应用于双音多频信号接收系统的六阶开关电容带通滤波器。该滤波器在工作电压为5V条件下,时钟频率为27.3KHz,通带频率为689Hz~949Hz。在输入信号电压为200mV的条件下:联级法设计的滤波器其通带衰减-0.55dB,阻带衰减为-40.98dB,整体电容值为87.891pF;z域合成法设计的开关电容滤波器其通带衰减-0.39dB,阻带衰减为-41.73dB,整体电容值为65.428pF。通过参数比较,z域合成法设计的滤波器电路滤波效果更好,电容值更小,并利用Cadence仿真软件对z域合成法设计的滤波器电路进行版图设计,其版图面积约为66060μm2。
[Abstract]:In the signal processing technology, the dual-tone multi-frequency signal plays an important role in the program control system and the automatic control system. The filter plays a decisive role in the transmission system of dual-tone multi-frequency signal, and the performance of the filter determines the effect of the receiver to process the dual-tone multi-frequency signal. Switched capacitor filter plays an important role in the field of filter. It is more suitable for CMOS process in circuit design. As the mainstream technology of integrated filter, CMOS process switched capacitor technology is one of the most effective hot technologies to realize SoC circuit. Based on CSMC 0.5 渭 m CMOS process and Cadence simulation software, a six-order switched capacitor band-pass filter for dual-tone multi-frequency signal receiving system is designed by two-second-order multistage series mode and Z-domain synthesis method, respectively. The filter has a clock frequency of 27.3 KHz and a passband frequency of 689 Hz at 5V operating voltage. When the input voltage is 200mV, the passband attenuation is -0.55dB, the stopband attenuation is -40.98dB, and the overall capacitance is 87.891pF. The switched-capacitor filter designed by Z-domain synthesis method has a passband attenuation of -0.39 dB, a stopband attenuation of -41.73 dB and an overall capacitance of 65.428pF. Compared with the parameters, the filter circuit designed by z domain synthesis method has better filtering effect and smaller capacitance value. The layout of the filter circuit designed by z domain synthesis method is designed by using Cadence simulation software, and the layout area is about 66060 渭 m ~ 2.
【学位授予单位】：黑龙江大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN713
本文编号：2408623
[Abstract]:In the signal processing technology, the dual-tone multi-frequency signal plays an important role in the program control system and the automatic control system. The filter plays a decisive role in the transmission system of dual-tone multi-frequency signal, and the performance of the filter determines the effect of the receiver to process the dual-tone multi-frequency signal. Switched capacitor filter plays an important role in the field of filter. It is more suitable for CMOS process in circuit design. As the mainstream technology of integrated filter, CMOS process switched capacitor technology is one of the most effective hot technologies to realize SoC circuit. Based on CSMC 0.5 渭 m CMOS process and Cadence simulation software, a six-order switched capacitor band-pass filter for dual-tone multi-frequency signal receiving system is designed by two-second-order multistage series mode and Z-domain synthesis method, respectively. The filter has a clock frequency of 27.3 KHz and a passband frequency of 689 Hz at 5V operating voltage. When the input voltage is 200mV, the passband attenuation is -0.55dB, the stopband attenuation is -40.98dB, and the overall capacitance is 87.891pF. The switched-capacitor filter designed by Z-domain synthesis method has a passband attenuation of -0.39 dB, a stopband attenuation of -41.73 dB and an overall capacitance of 65.428pF. Compared with the parameters, the filter circuit designed by z domain synthesis method has better filtering effect and smaller capacitance value. The layout of the filter circuit designed by z domain synthesis method is designed by using Cadence simulation software, and the layout area is about 66060 渭 m ~ 2.
【学位授予单位】：黑龙江大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN713
【参考文献】
相关期刊论文 前10条
1 解放;罗闯;;CMOS模拟集成电路版图设计[J];微处理机;2012年03期
2 常杰;刘诗斌;;开关电容低通滤波器的设计[J];电子设计工程;2012年08期
3 邢琦峰;;开关电容滤波器的设计与应用研究[J];电脑知识与技术;2011年07期
4 聂伟;杨胜姚;王岩嵩;;基于FPGA的通用FIR滤波器设计[J];实验技术与管理;2010年10期
5 周蓉;马胜前;;高阶开关电容滤波器的设计和仿真[J];电子测量技术;2010年02期
6 熊元新;吴罡;;基于设计空间的基本开关电容电路滤波器设计[J];电力学报;2009年01期
7 宋军;赵明忠;;一种分析和设计抗混叠滤波器的方法[J];现代电子技术;2008年19期
8 尹继武;龙姝明;王少华;孙彦清;卢超;;开关电容梳状滤波器幅频特性的深入分析[J];现代电子技术;2008年07期
9 熊健;王福明;;基于开关电容技术的巴特沃斯滤波器设计及PSpice仿真研究[J];现代电子技术;2007年23期
10 舒艳萍;陈为;毛行奎;;开关电源有源共模EMI滤波器研究及其应用[J];电力电子技术;2007年06期
，本文编号：2408623
本文链接：https://www.wllwen.com/kejilunwen/dianzigongchenglunwen/2408623.html
