A Noise Rejective VCO with Build-in Active LC Filter

摘要：

VCO is the key component in PLLs, and is easy to be interfered by the noise on control voltage or power supply. In this article, a build-in LC filter is inserted into a single-end VCO which is named BF-VCO. The LC filter consists of a regulated cascode active inductor and a capacitor. And the low-pass bandwidth is not greater than 1.6MHz. The measurement spectrum shows that the noise received by thesucceeding ring oscillator is attenuated for about 20dB, while the white noise floor changes little.

关键词： VCO regulated cascode active inductor spectrum LC filter

作者: Ma Zhuo Guo yang Xie Lunguo Liu Rongrong Zuo Hongjian

作者单位: Computer School, National University of Defense Technology, Changsha 410073, China

会议类型: 国际会议

会议名称: 2011 IEEE 9th International Conference on ASIC(2011年第九届IEEE国际专用集成电路大会)

会议地点: 厦门

会议语种:英文

页码: 647-650

在线出版日期: 2011-10-25（万方平台首次上网日期，不代表论文的发表时间）