公开(公告)号：US20140327487A1

公开(公告)日：2014-11-06

申请号：US14362279

申请日：2012-12-06

Applicant: ST-Ericsson SA

Inventor： Emmanuel Chataigner ,  Sebastien Dedieu

IPC: H03B5/12

CPC classification number: H03B5/1228 ,  H03B5/1215 ,  H03B5/124 ,  H03B5/1262 ,  H03B5/368 ,  H03B25/00

Abstract: An oscillator (200, 300, 350) comprises a tank circuit (100), a first transistor (M1c) and a second transistor (M1r), and the second transistor (M1r) occupies an area of silicon that is smaller than an area of silicon occupied by the first transistor (M1c). A switching apparatus (Sw1 . . . Sw14) selects either one of a first oscillator topology and a second oscillator topology, where in the first oscillator topology, the tank circuit (100) is coupled to the first transistor (M1c) in a first feedback configuration to provide feedback around the first transistor (M1c), and in the second oscillator topology, the tank circuit (100) is coupled to the second transistor (M1r) in a second feedback configuration that is different to the first feedback configuration to provide feedback around the second transistor (M1r).

Abstract translation: 振荡器（200,3300,350）包括一个振荡电路（100），一个第一晶体管（M1c）和一个第二晶体管（M1r），第二晶体管（M1r）占据一个小于 由第一晶体管（M1c）占据的硅。 开关装置（Sw1 ... Sw14）选择第一振荡器拓扑结构和第二振荡器拓扑中的任何一个，其中在第一振荡器拓扑中，振荡电路（100）以第一反馈耦合到第一晶体管（M1c） 配置以围绕第一晶体管（M1c）提供反馈，并且在第二振荡器拓扑中，振荡电路（100）以与第一反馈配置不同的第二反馈配置耦合到第二晶体管（M1r），以提供反馈 围绕第二晶体管（M1r）。

公开(公告)号：US09252705B2

公开(公告)日：2016-02-02

申请号：US14362279

申请日：2012-12-06

Applicant: ST-Ericsson SA

Inventor： Emmanuel Chataigner ,  Sebastien Dedieu

IPC: H03B5/12 ,  H03B5/36 ,  H03B25/00

CPC classification number: H03B5/1228 ,  H03B5/1215 ,  H03B5/124 ,  H03B5/1262 ,  H03B5/368 ,  H03B25/00

Abstract: An oscillator (200, 300, 350) comprises a tank circuit (100), a first transistor (M1c) and a second transistor (M1r), and the second transistor (M1r) occupies an area of silicon that is smaller than an area of silicon occupied by the first transistor (M1c). A switching apparatus (Sw1 . . . Sw14) selects either one of a first oscillator topology and a second oscillator topology, where in the first oscillator topology, the tank circuit (100) is coupled to the first transistor (M1c) in a first feedback configuration to provide feedback around the first transistor (M1c), and in the second oscillator topology, the tank circuit (100) is coupled to the second transistor (M1r) in a second feedback configuration that is different to the first feedback configuration to provide feedback around the second transistor (M1r).

Abstract translation: 振荡器（200,3300,350）包括一个振荡电路（100），一个第一晶体管（M1c）和一个第二晶体管（M1r），第二晶体管（M1r）占据一个小于 由第一晶体管（M1c）占据的硅。 开关装置（Sw1 ... Sw14）选择第一振荡器拓扑结构和第二振荡器拓扑中的任何一个，其中在第一振荡器拓扑中，振荡电路（100）以第一反馈耦合到第一晶体管（M1c） 配置以围绕第一晶体管（M1c）提供反馈，并且在第二振荡器拓扑中，振荡电路（100）以与第一反馈配置不同的第二反馈配置耦合到第二晶体管（M1r），以提供反馈 围绕第二晶体管（M1r）。