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SLIC eases development of VoIP-enabled PCs

Posted: 15 Jun 2007 ?? ?Print Version ?Bookmark and Share

Keywords:VoIP? SLIC? codec? high-definition audio?

DuSLIC-xT by <a href=Infineon" ALIGN="RIGHT">

Infineon Technologies AG introduces the newest member of its Dual-channel Subscriber Line Interface Circuit (DuSLIC) family of products for voice and VoIP-enabled devices. DuSLIC-xT is an energy-efficient codec/subscriber line interface circuit (SLIC) that offers best-in-class cost position for a complete voice-enabled system. It reduces the overall BOM for voice and VoIP systems including cable modems, analog terminal adaptors (ATA) and VoIP terminal applications by up to 50 percent depending on system specifications and requirements. DuSLIC-xT also helps to shrink the line interface unit footprint by up to 40 percent compared to current solutions.

The DuSLIC-xT includes an integrated high-definition audio interface which allows the device to provide an interface between a PC or laptop and an analog phone. Such voice-integrated PC applications enable users to make low-cost, high-quality VoIP telephone calls by connecting an analog phone directly to a PC or laptop.

Extended features
DuSLIC-xT provides several additional features. One is an integrated test and diagnostic functions (ITDF) for loop monitoring supporting the GR-909 standard and additional sophisticated test measures, to ensure real-time monitoring of voice quality and network stability. It also offers an integrated wideband support to offer unmatched audio quality in future voice communications.

With optimized DC/DC-based supply voltage generation and patented "balanced" internal ringing to minimize power dissipation, the device also sets new industry benchmarks, drawing up to 20 percent less power than today's best-in-class solution.

DuSLIC-xT also has a fully flexible power supply concept allows DuSLIC-xT to use one integrated DC/DC converter to feed all voice channels, while a second integrated converter can be used for other system tasks. Moreover, all relevant parameters are programmable via software so different markets can be served with a single hardware design that meets worldwide voice standards.

DuSLIC-xT (PEF 3201, PEF 3101) can be offered as either a dual- or single channel solution. The product combines one dual-channel codec and two single channel high-voltage SLICs in a PG-TQFP-100 package. Engineering samples including system design package will be available in July.

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