题目/Title：A Low Noise Amplifier with Automatically Q-Tuned Notch Filter

作者/Author：
                        Baoyong Chi,Chun Zhang,Zhihua Wang

期刊/Journal：Analog Integrated Circuits and Signal Processing

年份/Issue Date：2007Feb.

卷（期）及页码/Volume（No.）&pages：Vol.50, No.2, pp. 159 - 162

摘要/Abstract：
A low noise amplifier with automatically Q-tuned notch filter is proposed. The automatic Q tuning is achieved by an analog-digital mixed circuit, in which the successive approximation register algorithm is used to search for the appropriate current value through the resonator so that the losses of the resonator are perfectly cancelled to get a deep notch.