ISOmodem Solutions Guide
2Pages

MODEM SOLUTIONS ISOmodem® Solutions Si3018/10 Line Side Si24xx System Side SPI, UART or Parallel CLKIN/ XTAL1 Host Interface SSI Digital Audio Interface AC Termination BOM DC Termination Codec Aout Aoutb 4 SCLK FSYNCH SDI SDO • Commercial or industrial temperature range BENEFITS • Smallest, most compact modem solution • Lowest external component count and cost • Minimal software development • Proven performance and global compliance Ring Detect Isolation Interf ace ISOmodem BLOCK DIAGRAM The ISOmodem family of products are complete modems ranging in speed from 2400 bps to 56,000 bps. Offered as a chipset with a 16-pin global 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. The universal design can support all speeds and countries with a single Bill of Materials (BOM). These compact solutions eliminate the need for a separate DSP, modem controller, codec, transformer, relay, opto-isolators, clocking crystal and 2-4 wire hybrid. These devices are ideal for embedded data modem and data/voice modem applications due to their flexibility, small footprint, and minimal external components. FEATURES • AT command set • ITU-T “V-dot” protocols up to 56 kbps • Error correction and data compression • Fast-connect protocols for POS • Security industry protocols, e.g. “Contact ID” and SIA • SMS/MMS support including China • TMF generation and detection D • General purpose tone detectors • Global Caller ID type 1 and type 2 decoding • Integrated DAA – Over 6 kV surge immunity – On- and off- hook line voltage monitoring – Parallel phone (intrusion) detection – Over-current detection • Supports handset, speakerphone and answering machine functionality • Advanced voice processing – Acoustic Echo Cancellation – Line Echo Cancellation – Limiter for “Soft Clipping” – Programmable filtering and pre-emphasis • ART, SPI or parallel host interface U • Flexible clock options including low-cost 32.768 kHz oscillator • Low power; single 3.3 V supply – 15 mw in wake-on-ring or wake-on-polarity – 56 mW in normal operation • Firmware upgradeable • EEPROM interface • Lead-free, RoHS-compliant packages BOM Si3000 Voice Codec (Optional) MORE INFORMATION AND DOCUMENTATION DOWNLOADS AT: silabs.com/ISOmodem APPLICATIONS • Set-top boxes • Point-of-sale terminals • Security systems • Videophones • Medical monitoring equipment EMBEDDED DATA MODEMS AND DATA/VOICE MODEMS WITH INTEGRATED GLOBAL DAA

MODEM SOLUTIONS ISOmodem® Solutions Highest Level of Integration By integrating the DSP, modem controller, RAM and ROM, the ISOmodem significantly reduces the software development time and system resources needed to implement a full-featured modem. Smallest Footprint • arallel handset detection P The ISOmodem is the smallest complete modem solution on the market (<30 external components). This eases PCB layout, procurement and compliance while the smaller footprint allows for more functions on a given PCB. • 16-pin SOIC package • ess than 35 external L components Proven, Robust Solution...