Infineon releases VoIP chip with high-def audio

COLORADO SPRINGS, Colo. — Infineon Technologies AG has optimized a new member of its DuSlic chips for voice-over-Internet Protocol applications in both standalone IP phones and analog terminal adapters. The dual-channel DuSlic-xT is the first to include a high-definition audio interface to link a PC with sound card to an analog phone.

DuSlic-xT includes integrated test and diagnostic functions to use loop monitoring in support of the GR-909 standard. The chip has an optimized dc/dc supply voltage generation, and can use a single integrated dc/dc converter to feed all the voice channels. A second converter on-chip can be used for other voice tasks. The chip supports balanced internal ringing to cut power dissipation.

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