AUSTIN, Texas -- Silicon Laboratories Inc. (Nasdaq:SLAB), a leader in high-performance, analog-intensive, mixed-signal ICs, today announced an extension of the ProSLIC® programmable subscriber line interface (SLIC) family, the Si3226 Dual ProSLIC, a fully-integrated dual-channel SLIC and codec in a single chip. The Si3226 ProSLIC leverages Silicon Labs’ patented digital SLIC architecture to achieve a globally-compliant, carrier-grade SLIC complete with extensive remote diagnostic capabilities, low power consumption and the industry’s clearest voice reproduction in its class. The Si3226 is optimized for enterprise and consumer equipment, such as voice-enabled cable and DSL modems, fiber to the premise (FTTP) optical networking units and PBXs.

In contrast to analog-based SLICs, the Si3226 is built on a highly-programmable digital SLIC architecture that provides the flexibility to support the broadest range of customer requirements. Worldwide compliance is supported using a single hardware design and bill-of-materials. The Si3226 further combines a multimode ring generator and programmable battery-tracking dc-dc controller that enable low power operation in all line states. The device leads the voice over IP (VoIP) industry in idle-channel noise performance achieving as low as 7 dBrnC using advanced noise reduction techniques.

Remote diagnostics have become increasingly important in VoIP equipment as operators seek to reduce network maintenance costs. The Si3226 is equipped with a 12-bit monitoring ADC and powerful DSP engine that enable fast and accurate reporting of subscriber line faults. Fault isolation is enhanced through the support of two independent line-sensing paths per channel: one inside of the line protection and one outside. Diagnostic tests, such as those outlined in international testing standards like GR-909, can be implemented using the Si3226 without the need for relays or dedicated test equipment.

Silicon Laboratories Inc. (Nasdaq: SLAB)