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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