公开(公告)号：US11264949B2

公开(公告)日：2022-03-01

申请号：US17303215

申请日：2021-05-24

申请人： Analog Devices International Unlimited Company

发明人： Vamshi Krishna Chillara ,  Declan D. Dalton ,  Colin G. Lyden ,  Hyman Shanan

IPC分类号： H03B27/00 ,  H03K3/03 ,  H03B5/18 ,  H03L7/099

摘要： Apparatus and methods for rotary traveling wave oscillators (RTWOs) are disclosed. In certain embodiments, an RTWO system include an RTWO ring that carries a traveling wave, a plurality of selectable capacitors distributed around the RTWO ring and each operable in a selected state and an unselected state, and a decoder system that controls selection of the plurality of selectable capacitors based on a frequency tuning code. The frequency tuning code includes a fine tuning code and a coarse tuning code, and the decoder system is operable to maintain a constant number of capacitors that toggle state for each value of the fine tuning code.

公开(公告)号：US20210391828A1

公开(公告)日：2021-12-16

申请号：US17303215

申请日：2021-05-24

申请人： Analog Devices International Unlimited Company

发明人： Vamshi Krishna Chillara ,  Declan D. Dalton ,  Colin G. Lyden

IPC分类号： H03B5/18 ,  H03L7/099

摘要： Apparatus and methods for rotary traveling wave oscillators (RTWOs) are disclosed. In certain embodiments, an RTWO system include an RTWO ring that carries a traveling wave, a plurality of selectable capacitors distributed around the RTWO ring and each operable in a selected state and an unselected state, and a decoder system that controls selection of the plurality of selectable capacitors based on a frequency tuning code. The frequency tuning code includes a fine tuning code and a coarse tuning code, and the decoder system is operable to maintain a constant number of capacitors that toggle state for each value of the fine tuning code.