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公开(公告)号：US11936382B2
公开(公告)日：2024-03-19
申请号：US16454596
申请日：2019-06-27
Applicant: ATI TECHNOLOGIES ULC , ADVANCED MICRO DEVICES, INC.
Inventor： Joyce Cheuk Wai Wong , Dragoljub Ignjatovic , Mikhail Rodionov , Ljubisa Bajic , Stephen V. Kosonocky , Steven J. Kommrusch
IPC: H03L1/02 , H03K3/012 , H03K3/013 , H03K3/0231 , H03K3/03 , H03K5/15 , H03L5/00 , H03L7/085 , H03L7/099 , H03K5/1534
CPC classification number: H03K3/013 , H03K3/012 , H03K3/0231 , H03K3/03 , H03K5/1506 , H03K5/1508 , H03L1/02 , H03L5/00 , H03L7/085 , H03L7/0997 , H03K5/1534
Abstract: 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.
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公开(公告)号：US10382014B2
公开(公告)日：2019-08-13
申请号：US15390397
申请日：2016-12-23
Applicant: ATI TECHNOLOGIES ULC , Advanced Micro Devices, Inc.
Inventor： Joyce Cheuk Wai Wong , Dragoljub Ignjatovic , Mikhail Rodionov , Ljubisa Bajic , Stephen V. Kosonocky , Steven J. Kommrusch
IPC: H03K3/03 , H03K3/012 , H03K3/013 , H03K3/0231 , H03K5/1534 , H03K5/15 , H03L5/00 , H03L7/099 , H03L1/02 , H03L7/085
Abstract: 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.
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公开(公告)号：US20180183413A1
公开(公告)日：2018-06-28
申请号：US15390397
申请日：2016-12-23
Applicant: ATI TECHNOLOGIES ULC , Advanced Micro Devices, Inc.
Inventor： Joyce Cheuk Wai Wong , Dragoljub Ignjatovic , Mikhail Rodionov , Ljubisa Bajic , Stephen V. Kosonocky , Steven J. Kommrusch
CPC classification number: H03K3/013 , H03K3/012 , H03K3/0231 , H03K3/03 , H03K5/1506 , H03K5/1508 , H03K5/1534 , H03L1/02 , H03L5/00 , H03L7/085 , H03L7/0997
Abstract: 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.
