New Frequency Divider with 8 Output Phases for Phase Switching Prescaler

摘要：

A 5.6 GHz divided-by-7/8 prescaler is presented. A phase switching technique is used, and the prescaler has 8 π/4-spaced output phases. Two parallel divided-by-2 flipflops are usually used to generate 8 output phases, but this architecture suffers from the uncertainty of its output phase patterns. In this paper we propose a novel circuit which has four serially connected differential latches and which can generate 8 output phases without any phase-pattern uncertainty. It decreases the logic complexity of phase switching prescalers and improves the noise immunity which is an important merit when the PLL integrated with noisy digital circuits and in low-voltage implementation.

作者: Xiaojian Mao Huazhong Yang Hui Wang

作者单位: Department of Electronics Engineering Tsinghua University Beijing, China

会议类型: 国际会议

会议名称: 2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)

会议地点: 广西桂林

会议语种:英文

页码: 2588-2591

在线出版日期: 2006-06-25（万方平台首次上网日期，不代表论文的发表时间）