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SI2401

Silicon
Part Number SI2401
Manufacturer Silicon
Description V.22BIS ISOMODEM
Published Apr 24, 2007
Detailed Description Si2401 V. 2 2 BIS I S O MODEM® WITH I NTEGRATED G LOBAL D A A Features  Data modem formats  Integrated third-gener...
Datasheet PDF File SI2401 PDF File

SI2401
SI2401

Overview
Si2401 V.
2 2 BIS I S O MODEM® WITH I NTEGRATED G LOBAL D A A Features  Data modem formats  Integrated third-generation DAA  2400 bps: V.
22bis  Fewer external components required  1200 bps: V.
22, V.
23, Bell 212A  Over 5000 V capacitive isolation  300 bps: V.
21, Bell 103  Parallel phone detect  Fast connect and V.
23 reversing  Globally-compliant line interface  SIA and other security protocols  AT command set support  27 MHz CLKIN support  Call progress support  Caller ID detection and decoding  3.
3 V Power  UART with flow control  Lead-free, RoHS-compliant packages Applications  Set-top boxes  Point-of-sale  ATM terminals  Medical monitoring  Security systems  Power meters Description The Si2401 ISOmodem® is a complete, two-chip 2400 bps modem integrating Silicon Labs’ third-generation direct access arrangement (DAA), which provides a globally-programmable telephone line interface with an unprecedented level of integration.
Available in two 16-pin SOIC 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 fullduplex 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-ofsale (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.
Functional Block Diagram UART Isolation Interface RXD TXD CTS RESET EOFR/GPIO1 CD/GPIO2 ESC/GPIO3 INT/GPIO4 RI/GPIO5 XTALI XOUT Si2401 µ Controller (AT Decoder, Call Progress) Control Interface DSP (Data Pump) Clock Interface Si3010 Isolation Interface Hybrid, AC and DC Terminations ...


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