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Title:
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Variation tolerant self-adaptive clock generation architecture based on a ring oscillator
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Author:
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Pérez Puigdemont, Jordi; Calomarde Palomino, Antonio; Moll Echeto, Francisco de Borja
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial; Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. HIPICS - Grup de Circuits i Sistemes Integrats d'Altes Prestacions |
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Abstract:
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In this work we propose a self-adaptive clock based
on a ring oscillator as the solution for the increasing uncertainty
in the critical path delay. This increase in uncertainty forces to
add more safety margins to the clock period which produces a
circuit performance downgrade. We evaluate three self-adaptive
clock systems: free running ring oscillator, infinite impulse
response filter controlled RO and TEAtime controlled ring
oscillator. The safety margin reduction of the three alternatives is
investigated under different clock distribution delay conditions,
dynamic variation frequencies and the presence of mismatch
between the ring oscillator and the critical paths and the delay
sensors. |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica
-Clocks and watches)
-Time measurements
-Rellotges
-Cronometria |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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Share:
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