Invention Grant
- Patent Title: Adaptive oscillator for clock generation
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Application No.: US15390397Application Date: 2016-12-23
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Publication No.: US10382014B2Publication Date: 2019-08-13
- Inventor: Joyce Cheuk Wai Wong , Dragoljub Ignjatovic , Mikhail Rodionov , Ljubisa Bajic , Stephen V. Kosonocky , Steven J. Kommrusch
- Applicant: ATI TECHNOLOGIES ULC , Advanced Micro Devices, Inc.
- Applicant Address: CA Markham US CA Santa Clara
- Assignee: ATI Technologies ULC,Advanced Micro Devices, Inc.
- Current Assignee: ATI Technologies ULC,Advanced Micro Devices, Inc.
- Current Assignee Address: CA Markham US CA Santa Clara
- Main IPC: H03K3/03
- 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.
Public/Granted literature
- US20180183413A1 ADAPTIVE OSCILLATOR FOR CLOCK GENERATION Public/Granted day:2018-06-28
Information query
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