题目/Title：An improved charge-averaging charge-pump scheme

作者/Author：
                        Shuilong Huang,Zhihua Wang

期刊/Journal：Analog Integrated Circuits and Signal Processing

年份/Issue Date：2007Apr.

卷（期）及页码/Volume（No.）&pages：Vol.51, No.1, pp. 45 - 49

摘要/Abstract：
An improved charge-averaging charge-pump scheme is described in the paper. The circuit mainly includes four pairs of switches and four sampling capacitors. Two operation modes (normal/charge-averaging) are achieved by switching on/off. SpectreVerilog simulation results show the proposed scheme can strongly reduce the energy of spurs, and could be applied to high performance frequency synthesizers.