SI2439 Overview
The Si2494/39 ISOmodem is a full-featured ITU V.92/V.34-pliant modem that provides connect rates of up to 56 kbps, full-duplex, over the public switched telephone network (PSTN). Offered as a chipset with the Si2494/39 system-side device and the Si3018 line-side device, the ISOModem utilizes Silicon Laboratories’ patented direct access arrangment (DAA) technology to provide a programmable telephone line interface...
SI2439 Key Features
- 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
- Integrated DAA -Over 6000 V capacitive isolation -Parallel phone detect -Globally-pliant line interface -Overcurrent
- AT mand set support
- SMS / MMS support
- Firmware upgradeable