公开(公告)号：US09356556B1

公开(公告)日：2016-05-31

申请号：US14819764

申请日：2015-08-06

Applicant: Xilinx, Inc.

Inventor： Mayank Raj ,  Parag Upadhyaya

IPC: H03B5/12

CPC classification number: H03B5/124 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1296 ,  H03B27/00 ,  H03B2200/0048 ,  H03B2200/0078

Abstract: A circuit for implementing a dual-mode oscillator is disclosed. The circuit comprises a first oscillator portion having a first inductor coupled in parallel with a first capacitor between a first node and a second node; a first pair of output nodes coupled to the first and second nodes; a second oscillator portion inductively coupled to the first oscillator portion, the second oscillator portion having a second inductor coupled in parallel with a second capacitor between a third node and a fourth node; a second pair of output nodes coupled to the third and fourth nodes; and a control circuit coupled to enable a supply of current to either the first oscillator portion or the second oscillator portion. A method of implementing a dual-mode oscillator is also disclosed.

Abstract translation: 公开了一种用于实现双模振荡器的电路。 该电路包括第一振荡器部分，其具有与第一节点和第二节点之间的第一电容器并联耦合的第一电感器; 耦合到第一和第二节点的第一对输出节点; 电感耦合到第一振荡器部分的第二振荡器部分，第二振荡器部分具有与第三节点和第四节点之间的第二电容器并联耦合的第二电感器; 耦合到第三和第四节点的第二对输出节点; 以及控制电路，其被耦合以使得能够向第一振荡器部分或第二振荡器部分提供电流。 还公开了实现双模振荡器的方法。