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Silicon Labs modem chipsets enable single-sided MDC modem

Posted: 11 Jul 2002 ?? ?Print Version ?Bookmark and Share

Keywords:silicon laboratories? si3052? si3054? modem chipset? direct access arrangement?

Silicon Laboratory Inc. has announced the availability of the Si3052 and Si3054 modem chipsets that enable the implementation of a single-sided Mobile Daughter Card (MDC) modem, reducing the cost and increasing the reliability as compared to traditional double-sided MDC designs.

A part of the company's Direct Access Arrangement (DAA) product line, the chipsets also support other V.92 soft modem form factors including PCI, MiniPCI, Communication and Network Riser cards, and modem on motherboard designs with a single 16-pin MC-97 chip.

Both chips also enable combination applications that include a modem plus an Ethernet LAN, WLAN, and Bluetooth connectivity.

The ICs offer a number of enhanced features, including ring validation, integrated call progress speaker driver, internal plug-and-play identification, and modem lockup protection. They are also fully-programmable to meet global telephone line standards, including FCC, TBR-21, JATE, country-specific PTTs, and safety and emissions requirements.

Additionally, the company claims that the DAA architecture supports the most difficult international requirements for out-of-band energy, high-voltage surges and isolation.

The Si3052 Global PCI device complies with the latest PCI 2.3 standard and is shipped as a 64-pin TQFP system-side chip or as a 16-pin SOIC line-side IC.

The Si3054 Global MC-97 IC complies with Intel's latest AC-97 2.3 standard and includes a system-side and a line-side device, both of which are packaged in a 16-pin SOIC or TSSOP housing.

Both are based on the Silicon Laboratories' ISOcap technology, a patented method of transferring modem control information and data across a capacitive isolation barrier in digital format. The company claims that the technology enables global programmability, improved noise immunity, and a broad feature set without requiring additional external components.

The Si3052 chipset is offered at $4.50, while the Si3054 chipset is offered at $4.17 for the SOIC version, both in quantities of 10,000.

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