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Period Deviation Tolerance Templates: A Novel Approach to Evaluation and Specification of Self-Synchronizing Audio Converters

Self-synchronizing converters represent an elegant and cost effective solution for audio functionality integration into SoC (System-on-Chip) as they integrate both conversion and clock synchronization functionalities. Audio performance of such converters is, however, very dependent on the jitter rejection capabilities of the synchronization system. A methodology based on two period deviation tolerance templates is described for evaluating such synchronization solutions, prior to any silicon measurements. It is also a unique way for specifying expected performance of a synchronization system in the presence of jitter on the audio interface. The proposed methodology is applied to a self-synchronizing audio converter and its advantages are illustrated by both simulation and measurement results.

Authors: Legray, Francis; Heeb, Thierry; Genevey, Sebastien; Kuo, Hugo
Affiliations: Dolphin Integration, Meylan, France; Digimath, Sainte-Croix, Switzerland; SUPSI, ICIMSI, Manno, Switzerland(See document for exact affiliation information.)
AES Convention:133 (October 2012) Paper Number:8729 Import into BibTeX
Subject:Amplifiers, Transducers, and Equipment

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