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Communications chipsets combine voice and m2m connectivity

Communications chipsets combine voice and m2m connectivity

Silicon Laboratories has announced the next generation of its Si24xx ISOmodem series, which it claims offers advanced voice features, lower power, reduced BOM costs and flexible interface options for a range of data modem applications.

The Si24xx data modem ICs are designed to address the need for voice and machine to machine communications for security and home automation systems, smart utility meters, set top boxes, point of sale terminals and other electronics systems that connect to the public switched telephone network.

The devices voice feature set is said to offer better performance and audio fidelity than legacy data modem solutions. When combined with Silicon Labs' Si3000 voice codec, the Si24xx data modems support handset, speakerphone (full or half duplex), voice menu and answering machine implementations. Developers have the choice to add telephony and voice functions to any embedded system, without the need for the dedicated voice processing ICs or host based dsp software required by legacy approaches.

SiLabs claims the series offers the industry's lowest power consumption in both active and standby modes. Operating from a single 3.3V power supply, ISOmodem chipsets are said to draw 56mW in normal operation. Sleep and wake on ring modes are available to reduce power consumption to 0.3 and 15mW, respectively.

"Silicon Labs continues to invest in embedded modem technology to help its customers reduce power, component count and system cost," said Carlos Garcia, vice president of the company's Wireline products. "Our next generation Si24xx ISOmodem family gives developers the utmost in flexibility, reliability, surge protection and advanced voice features for telephony applications."

Laura Hopperton

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