Analysis of Spread-Spectrum Clocking Modulations Under Synchronization Timing Constraint
| Autor: | Michele De Martino, Antonio G. M. Strollo, Nicola Petra, Davide De Caro |
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| Přispěvatelé: | DE CARO, Davide, DE MARTINO, Michele, Petra, Nicola, Strollo, ANTONIO GIUSEPPE MARIA |
| Rok vydání: | 2015 |
| Předmět: |
Modulating waveform
Computer science Dithered clock Clock rate Electromagnetic interference (EMI) Spread‑spectrum clock Industrial and Manufacturing Engineering Electromagnetic interference Synchronization Constraint (information theory) Spread spectrum Computer Science::Hardware Architecture EMI Modulation (music) Frequency modulation Electronic engineering |
| Zdroj: | Lecture Notes in Electrical Engineering ISBN: 9783319202266 ApplePies |
| DOI: | 10.1007/978-3-319-20227-3_20 |
| Popis: | Spread spectrum clocking slowly sweeps clock frequency of a digital system to reduce the Electromagnetic Interference (EMI). In a digital system on chip, there can be subsystems where clock spreading is not allowed. This paper analyzes the performances achievable by spread spectrum clocking when a constraint is imposed to easily synchronize clock modulated and unmodulated subsystems. It is shown that the best modulation gain (17 dB) is achieved by using optimized discontinuous modulation. |
| Databáze: | OpenAIRE |
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