Title :
A flexible, module-based SoC-approach for low-power VoIP-applications
Author :
Fugger, Paul ; Graf, Johann ; Denkner, C. ; Müller, Frank ; Oitzl, Erich ; Walcher, Harald ; Waldner, Markus ; Salzmann, J. ; Steiner, Markus
Author_Institution :
Infineon Technol. Design Center, Villach, Austria
Abstract :
A system on chip (SoC) is presented, which is suitable for both conventional telephony via the public switched telephone network (PSTN) and voice over Internet protocol (VoIP). A highly flexible approach offers the possibility to integrate several interface types, customizable by software download. Additional download capabilities facilitate the integration of voice-codecs for voice compression, algorithms for silent noise injection, far end line echo cancellation, and fax/modem termination. The modular design style allows reuse of all major building blocks in future systems. The modular test concept enables separated tests for all parts of the chip as well as configurable self tests for easy go/no go-decisions.
Keywords :
Internet telephony; automatic testing; circuit CAD; data compression; echo suppression; integrated circuit design; low-power electronics; modems; speech codecs; system-on-chip; telephone equipment; telephone networks; building block reuse; configurable self-tests; far end line echo cancellation; fax/modem termination; flexible module-based SoC design; low-power VoIP-applications; modular test concept; public switched telephone network; silent noise injection algorithms; software download customizable interface types; system on chip; telephony; voice compression; voice over Internet protocol; voice-codecs; Asynchronous transfer mode; Automatic testing; Availability; Clocks; Delay; Echo cancellers; Internet telephony; Jitter; Noise cancellation; Quality of service;
Conference_Titel :
ASIC/SOC Conference, 2002. 15th Annual IEEE International
Print_ISBN :
0-7803-7494-0
DOI :
10.1109/ASIC.2002.1158067
