Overview: RC224ATL/224ATLV EmbeddedModem Family The new Conexant RC224ATL utilizes a new integrated data pump/controller to allow the device to directly connect to host processors that are 3.3 V I/O capable. The codec used in the new part is the same as the codec used in the existing RC224ATL. The new device is form, fit, and function patible with the existing device. This means there are no hardware and software differences between the existing and the new part, with one exception. The 3.3 V I/O capable part incorporates 3.3 V patible digital I/O buffers, hence requiring 3.3 V digital supply instead of 5 V digital supply.
In addition, unlike the current version of RC224ATL, the new part provides both data and fax capabilities.
Data modes, controlled by an industry standard 2400 AT mand set, can transmit and receive up to 2400 bps.
Fax modes, controlled by a built-in EIA-578 Class 1 mand interface, provide Group 3 transmit and receive functions. Functional Block Diagram
Modem Data Pump V.
