Getting soft on baseband and broadband modems.(Technology Information)

From: EDN | Date: July 20, 2000| Author: | Copyright information

THE ADVANTAGES OF SOFT MODEMS ARE EASY TO LIST: COST, COST, AND COST. A SOFT DSL MODEM EATS A FEW HUNDRED MIPS, BUT MOST USERS CAN'T TELL THE DIFFERENCE AT THOSE SPEEDS. FROM A DESIGN STANDPOINT, SOFT MODEMS COME WITH EVERYTHING YOU NEED TO DROP THE MODEM INTO A SYSTEM.

THE REASONING BEHIND SOFT MODEMS is simple: The more hardware you can remove from a system, the cheaper the system becomes. The "soft" concept means that, instead of having a separate chip for each function, a host processor assumes part of the processing load and either reduces the required silicon or ...

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