摘要
介绍了一种基于0.8μm CMOS工艺的宽调节范围高线性度压控锯齿波振荡电路,同时利用Candence仿真工具对电路进行了仿真模拟.结果表明,产生的锯齿波压控调节范围为1.1~1.9MHz,中间频段线型度很高,且频率稳定、精度较高,可广泛应用在稳压器以及各种相位频率锁定系统中.
A wide tuning range and high linearity sawtooth-wave VCO circuit based on 0.8 μm CMOS technology is presented,and is simulated by using the tool of Candance. It shows that the sawtooth-wave tuning range is 1.1~1.9 MHz,the middle frequency band has a high linearity, and the frequency is very stable、the precision is very high. It can be widely used in regulators and many kinds of phase or frequency locking system.
出处
《电子器件》
CAS
2007年第6期2073-2076,共4页
Chinese Journal of Electron Devices
基金
国家自然科学基金资助(60172004)