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The Si2401 ISOmodem is a complete two-chip 2400 bps modem integrating Silicon Labs' proprietary Direct Access Arrangement (DAA) to provide a globally programmable telephone line interface with an unprecedented level of integration.
Available in two 16-pin SOIC packages, this compact modem solution eliminates the need for a separate DSP data pump, modem controller, codec, isolation transformer, relay, opto-isolators and 2-4 wire hybrid. The Si2401 provides conventional data formats at connect rates of up to 2400 bps, with full-duplex operation over the Public Switched Telephone Network (PSTN). Additionally, the Si2401 is fully programmable to meet global standards with a single design. Other features include fast connect times for electronic point-of-sale (EPOS) applications and alarm protocols for security systems. The device is ideal for embedded modem applications due to its small size, low external component count and low power consumption.
Si2401 Block Diagram
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