Description
The Si2401 ISOmodem® is a complete, two-chip, 2400 bps modem integrating Silicon Laboratories’ fourth-generation direct access arrangement (DAA), which provides a globally-programmable telephone line interface with an unprecedented level of integration. Available in two small packages, this compact 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). This device is ideal for embedded modem applications due to its small size, minimal external component count, and low power consumption.

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
-Over 6000 V 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

Applications
*Set-top boxes
*Point-of-sale
*ATM terminals
*Security systems
*Medical monitoring
*Power meters

Si3008, SI2401-FS, SI3008-B-FS

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Description
The Si2401 ISOmodem® is a complete, two-chip, 2400 bps modem integrating Silicon Laboratories’ fourth-generation direct access arrangement (DAA), which provides a globally-programmable telephone line interface with an unprecedented level of integration. Available in two small packages, this compact 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). This device is ideal for embedded modem applications due to its small size, minimal external component count, and low power consumption.

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
 Over 6000 V 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

Applications
*Set-top boxes
*Point-of-sale
*ATM terminals
*Security systems
*Medical monitoring
*Power meters

Si3008

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