Description

The Si2404-FT is a two-chip modem integrating Silicon Laboratories' fourth-generation direct access arrangement (DAA). This compact solution eliminates the need for separate components such as a DSP data pump, modem controller, codec, isolation transformer, relay, opto-isolators, and 2-4 wire hybrid. It supports data formats at connect rates of up to 2400 bps with full-duplex operation over the Public Switched Telephone Network (PSTN). The Si2404-FT is ideal for embedded modem applications due to its small size, minimal external component count, and low power consumption.

Specifications and Features

- Data modem formats: 2400 bps: V.22bis, 1200 bps: V.22, V.23, Bell 212A, 300 bps: V.21, Bell 103, Fast connect and V.23 reversing, SIA and other security protocols

- 27 MHz CLKIN support

- Caller ID detection and decode

- UART with flow control

- Integrated DAA with over 6000V capacitive isolation, parallel phone detection, compliant with FCC, China, JATE, and 31 other PTTs, line-in-use detection

- AT command set support

- Call progress support

- 3.3 V Power

- Lead-free and RoHS-compliant packages

Application Scenarios

- Set-top boxes

- Point-of-sale

- ATM terminals

- Security systems

- Medical monitoring

- Power meters