| 频率分辨率改进型数控振荡器的设计 |
| |
| 引用本文： | 戴煊,金晶,张微成,周健军.频率分辨率改进型数控振荡器的设计[J].上海交通大学学报,2010,44(2):218-0222. |
| |
| 作者姓名： | 戴煊 金晶 张微成 周健军 |
| |
| 作者单位： | (上海交通大学 模拟射频集成电路设计中心，上海 200240) |
| |
| 基金项目： | 国家高技术研究发展计划(863)项目(2008AA12Z310) |
| |
| 摘 要： | 设计了一个应用于四频带全球移动通信系统(GSM)收发机的频率分辨率改进型数控振荡器.提出了一种新型串联开关变容管模型并进行理论分析，将其应用在振荡器的精确调谐电容阵列中，验证了其对频率分辨率增强的性能.设计采用90 nm互补金属氧化物半导体工艺，当谐振在3.1 GHz时，数字加抖前的频率分辨率达到1.6 kHz，距中心频率20 MHz处的相位噪声为-152 dBc/Hz，功耗8.16 mW.仿真表明，该频率分辨率改进型数控振荡器满足四频带GSM收发机的要求，适于应用在全数字锁相环中.
|
| 关 键 词： | 数控振荡器 全数字锁相环 频率分辨率 金属氧化物半导体变容管 |
| 收稿时间： | 2009-6-9 |
Design of Frequency Resolution Enhanced Digitally Controlled Oscillator |
| |
| DAI Xuan,JIN Jing,ZHANG Wei-cheng,ZHOU Jian-jun.Design of Frequency Resolution Enhanced Digitally Controlled Oscillator[J].Journal of Shanghai Jiaotong University,2010,44(2):218-0222. |
| |
| Authors: | DAI Xuan JIN Jing ZHANG Wei-cheng ZHOU Jian-jun |
| |
| Institution: | (Center for Analog and RF IC, Shanghai Jiaotong University, Shanghai 200240, China) |
| |
| Abstract: | A novel way to improve the frequency resolution of digitally-controlled oscillator(DCO) for quad-band global system for mobile communication(GSM) was proposed.The characters and principle of DCO are described at first.Then the proposed novel series switched varactor model is analyzed.The fine tuning capacitor bank in DCO is then implemented using this varactor to achieve better frequency resolution.A DCO in 90 nm complementary metal oxide semiconductor(CMOS) process using this new structure(achieves) a freq... |
| |
| Keywords: | digitally controlled oscillator(DCO) all-digital phase-locked loop(ADPLL) frequency(resolution metal) oxide semiconductor(MOS) varactor |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《上海交通大学学报》浏览原始摘要信息 |
| 点击此处可从《上海交通大学学报》下载免费的PDF全文 |
