Si2415 Datasheet | Silicon Labs

Si2457/Si2434/Si2415 V. 9 0 , V. 3 4 , V. 3 2 B I S I S O M O D E M ® W I T H I N T E GR A T E D G L O B A L D A A Features Data modem formats ITU-T, Bell 300 bps up to 56 kbps V.21,V.22, V.29 Fast Connect V.42, V.42bis, MNP2-5 Automatic rate negotiation Type I and II caller ID decode No external ROM or RAM required UART or parallel interface AT mand set support Applications Set-top boxes Point-of-sale terminals ATM terminals Integrated DAA Over 5000 V Capacitive isolation Parallel phone detect Globally-pliant line interface Overcurrent detection 27 MHz clock input 3.3 V power Firmware upgradeable EEPROM interface Digital video recorder Digital televisions Remote monitoring Description The Si2457, Si2434, and Si2415 are plete two-chip modems ranging in speed from 56,000 bps to 14,400 bps. The ISOmodem® chipsets utilize Silicon Laboratories’ third-generation direct access arrangement (DAA) to provide a globally-programmable telephone line interface with an unparalleled level of integration. By sharing the same line-side device, a single design can be used in all countries and for all modem speeds. Available in two small packages, these pact solutions eliminate the need for a separate DSP, modem controller, codec, isolation transformer, relay, opto-isolators, clocking crystal, and 2- 4 wire hybrid. The ISOmodem provides conventional data formats with connect rates of up to 56,000 bps, full-duplex, over the Public Switched Telephone Network (PSTN). These devices are ideal for embedded modem applications due to their flexibility, small footprint, and minimal external ponent count. Functional Block Diagram CLKIN/XTALI XTALO CLKOUT RXD TXD CTS RTS DCD ESC PLL Clocking Serial Interface RAM/ROM Data Bus Microcontroller DSP CS WR RD A0 D0-D7 RESET Parallel Interface DAA Interface AOUT To Phone...