公开(公告)号：US20130113573A1

公开(公告)日：2013-05-09

申请号：US13436564

申请日：2012-03-30

申请人： Manolis FRANTZESKAKIS ,  Georgios Sfikas ,  Henrik Jensen ,  Yushi Tian ,  Jianfeng Shi

发明人： Manolis FRANTZESKAKIS ,  Georgios Sfikas ,  Henrik Jensen ,  Yushi Tian ,  Jianfeng Shi

IPC分类号： H03L7/00 ,  H03K3/03

CPC分类号： H03L7/099 ,  H03K3/0315

摘要： The present disclosure is directed to a method and apparatus for providing an output oscillating signal at a desired frequency. In at least one example, the apparatus includes a weak inversion structure configured to set a small reference current. A current mirror configured to provide a replica current based on the small reference current and a tuning word. A ring oscillator is configured to be powered by a supply at a voltage determined based on the replica current. The tuning word is adjustable to change the voltage such that the ring oscillator provides the output oscillating signal at the desired frequency.

摘要翻译： 本公开涉及一种用于以期望的频率提供输出振荡信号的方法和装置。 在至少一个示例中，该装置包括被配置为设置小参考电流的弱反转结构。 配置为基于小参考电流提供复制电流的电流镜和调谐字。 环形振荡器被配置为由基于复制电流确定的电压的电源供电。 调谐字可调，以改变电压，使得环形振荡器以期望的频率提供输出振荡信号。