公开(公告)号：US11936382B2

公开(公告)日：2024-03-19

申请号：US16454596

申请日：2019-06-27

申请人： ATI TECHNOLOGIES ULC ,  ADVANCED MICRO DEVICES, INC.

发明人： Joyce Cheuk Wai Wong ,  Dragoljub Ignjatovic ,  Mikhail Rodionov ,  Ljubisa Bajic ,  Stephen V. Kosonocky ,  Steven J. Kommrusch

IPC分类号： H03L1/02 ,  H03K3/012 ,  H03K3/013 ,  H03K3/0231 ,  H03K3/03 ,  H03K5/15 ,  H03L5/00 ,  H03L7/085 ,  H03L7/099 ,  H03K5/1534

CPC分类号： H03K3/013 ,  H03K3/012 ,  H03K3/0231 ,  H03K3/03 ,  H03K5/1506 ,  H03K5/1508 ,  H03L1/02 ,  H03L5/00 ,  H03L7/085 ,  H03L7/0997 ,  H03K5/1534

摘要： An output clock frequency of an adaptive oscillator circuit changes in response to noise on an integrated circuit power supply line. The circuit features two identical delay lines which are separately connected to a regulated supply and a droopy supply. In response to noise on the droopy supply, the delay lines cause a change in the output clock frequency. The adaptive oscillator circuit slows down the output clock frequency when the droopy supply droops or falls below the regulated supply. The adaptive oscillator circuit clamps the output clock frequency at a level determined by the regulated supply when the droopy supply overshoots or swings above the regulated supply.

公开(公告)号：US10382014B2

公开(公告)日：2019-08-13

申请号：US15390397

申请日：2016-12-23

申请人： ATI TECHNOLOGIES ULC ,  Advanced Micro Devices, Inc.

发明人： Joyce Cheuk Wai Wong ,  Dragoljub Ignjatovic ,  Mikhail Rodionov ,  Ljubisa Bajic ,  Stephen V. Kosonocky ,  Steven J. Kommrusch

IPC分类号： H03K3/03 ,  H03K3/012 ,  H03K3/013 ,  H03K3/0231 ,  H03K5/1534 ,  H03K5/15 ,  H03L5/00 ,  H03L7/099 ,  H03L1/02 ,  H03L7/085

摘要： An output clock frequency of an adaptive oscillator circuit changes in response to noise on an integrated circuit power supply line. The circuit features two identical delay lines which are separately connected to a regulated supply and a droopy supply. In response to noise on the droopy supply, the delay lines cause a change in the output clock frequency. The adaptive oscillator circuit slows down the output clock frequency when the droopy supply droops or falls below the regulated supply. The adaptive oscillator circuit clamps the output clock frequency at a level determined by the regulated supply when the droopy supply overshoots or swings above the regulated supply.

公开(公告)号：US20180183413A1

公开(公告)日：2018-06-28

申请号：US15390397

申请日：2016-12-23

申请人： ATI TECHNOLOGIES ULC ,  Advanced Micro Devices, Inc.

发明人： Joyce Cheuk Wai Wong ,  Dragoljub Ignjatovic ,  Mikhail Rodionov ,  Ljubisa Bajic ,  Stephen V. Kosonocky ,  Steven J. Kommrusch

IPC分类号： H03K3/013 ,  H03L7/099 ,  H03L5/00 ,  H03K5/15 ,  H03K5/1534 ,  H03K3/012

CPC分类号： H03K3/013 ,  H03K3/012 ,  H03K3/0231 ,  H03K3/03 ,  H03K5/1506 ,  H03K5/1508 ,  H03K5/1534 ,  H03L1/02 ,  H03L5/00 ,  H03L7/085 ,  H03L7/0997

摘要： An output clock frequency of an adaptive oscillator circuit changes in response to noise on an integrated circuit power supply line. The circuit features two identical delay lines which are separately connected to a regulated supply and a droopy supply. In response to noise on the droopy supply, the delay lines cause a change in the output clock frequency. The adaptive oscillator circuit slows down the output clock frequency when the droopy supply droops or falls below the regulated supply. The adaptive oscillator circuit clamps the output clock frequency at a level determined by the regulated supply when the droopy supply overshoots or swings above the regulated supply.