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Using the 73M2901CE in a Teridian K-Series Application

关键词: low speed modem, V.22bis, K Series, 80C32 controller, Teridian, POS, point-of-sale terminal, ATM, smart card reader, utility meter
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应用笔记 4981

Using the 73M2901CE in a Teridian K-Series Application

By: Jeff Sorensen

摘要 : Teridian K-Series modems have been used in various low-speed data applications, from point-of-sale (POS) terminals to security systems. Since these ICs are reaching end-of-life after years of successful production, there is a need to design a K-Series replacement in products that either are being manufactured or have a long lifetime remaining. There are fundamental differences between the architectures of the K Series and the 73M2901CE, Teridian's V.22bis single-chip modem. However, since the 73M2901CE can be considered a \"super set\" of the K Series, using it as a replacement can usually eliminate hardware and simplify design.