Telecoms, Datacoms, Wireless, IoT


Small DSP-based embedded V.90 modem chipset

24 October 2001 Telecoms, Datacoms, Wireless, IoT

For products requiring Internet connectivity, Texas Instruments has introduced what it claims is the lowest power and smallest V.90 embedded modem chipset for integration into end-equipment with very small form factor. The two-chip solution cuts power consumption by as much as 90% and board space by up to 40% over existing solutions, enabling a new class of Internet access devices with smaller power and space requirements.

The two-chip solution, which consists of a power-efficient TMS320C54V90 DSP and PCTEL line-powered Data Access Arrangement (DAA), consumes only 25 mW of power when running a V.90 modem and requires only 9,68 cm2 of board space. The C54V90 DSP incorporates PCTEL's modem control and data pump software, eliminating the need for off-chip memory, and integrates the digital portion of the DAA on-chip. This decreases the conventional embedded modem solution from five or six chips to just two chips.

TI and PCTEL also plan to release a V.92 embedded modem chipset that will offer more symmetric data transmission speeds, faster handshaking time, and a 'modem on hold' feature to take another phone call on the same line.



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