SILICON LABS SI2457-D-FSR

The ISOmodem family of products is a complete modem ranging in speed from 56,000 bps to 2400 bps. Offered as a chipset with the Si2457, Si2434, Si2415, or Si2404 system-side device and the Si3018/10 line-side device, the ISOmodem utilizes Silicon Laboratories’ patented direct access arrangement (DAA) technology to provide a programmable telephone line interface with an unparalleled level of integration. These compact solutions eliminate the need for a separate DSP, modem controller, codec, transformer, relay, opto-isolators, clocking crystal, and 2-4 wire hybrid. Available with a system-side packaging option of either a 16-pin SOIC or a 24-pin TSSOP, these devices are ideal for embedded modem applications due to their flexibility, small footprint, and minimal external component count.

• ITU-T, Bell
• 300 bps up to 56 kbps
• V.21, V.22, V.29 Fast Connect
• V.44, V.42, V.42bis, MNP2 - 5
• Automatic rate negotiation
• Type I and II caller ID decode
• No external ROM or RAM required
• UART, SPI, or parallel interface
• Flexible clock options
• Low-cost 32.768 kHz oscillator
• 4.915 MHz oscillator
• 27 MHz clock input
• Over 6000 V capacitive isolation
• Parallel phone detect
• Globally-compliant line interface
• Overcurrent detection
• AT command set support
• SMS / MMS support
• Firmware upgradeable
• EEPROM interface
• Lead-free, RoHS-compliant packages
• Commercial or industrial temperature range
• DTMF detection/generation

• Set-top boxes
• Point-of-sale terminals
• Text / video telephones
• Digital video recorder
• Digital televisions
• Remote monitoring