embedded dial-up modems v.22bis applications conexants portfolio includes a comprehensive suite of semiconductor solutions for broadband communications and the digital home. distinguishing features ? modulations ? itu-t v.22bis (2400 bps) - v.22 and bell 212a (1200 bps) - v.22 fast connect - v.21 and bell 103 (300 bps) - v.23 1200/75 and 75/1200 - v.23 half duplex (1200 bps) ? v.42 and mnp2-4 error correction ? serial interface ? synchronous/asynchronous data mode - hardware and software flow control ? supports at command set ? other protocols - v.80 synchronous access mode - v.23 reverse mode ? type i and type ii caller id decoding ? worldwide dc mask compliance ? enhanced daa features - digital line protection - line-in-use detection - extension pickup detection - remote hang-up detection ? single +3.3v supply ? 20-pin qfn part number CX90240 description v.22bis modem with 4th generation smartdaa v.22bis modem with 4th generation smartdaa CX90240 2400 bps modem with smartdaa ? 4 for embedded applications conexants broadband communications portfolio includes a comprehensive suite of semiconductor solutions that enable the digital home and information network. conexant modem solutions deliver a high level of integration and robust performance. the CX90240 modem device is a simplified design in a small form-factor which allows for quick time-to-market. the CX90240 modem supports worldwide daa and data modes up to 2400bps. conexants proprietary smartdaa? 4 line side device builds on three generations of market leading silicon daa devices. it reduces bill of material (bom) cost and necessary board space, making it the most cost efficient silicon daa in the market. it eliminates the need for costly analog transformers, relays and opto-isolators typically used in discrete daa implementation for country-specific modem configurations. the result is a worldwide reduced system cost solution using a single bom. the smartdaa4 is system-powered, making it the most reliable and best performing silicon daa in the market. this low cost solution integrates microcontroller (mcu), serial host interface, rom, ram and smartdaa system side device (ssd) functions onto a single die. the easy-to-use design is pin-to-pin compatible with conexants cx93011 product in a 20-pin quad flat-no lead (qfn) package. applications conexants CX90240 modem is ideal for embedded applications such as: pos terminals ? set-top boxes ? email terminals ? atm machines ? advantages pin-compatible to cx93011 serial modem ? smartdaa 4 technology ? worldwide support ? quick time-to-market ? low-cost solution ? small form-factor ?
? 2007 conexant systems, inc. all rights reserved. conexant and the conexant logo are registered trademarks of conexant systems, inc. all other trademarks are owned by their respective owners. although conexant strives for accuracy in all its publications, this material may contain errors or omissions and is subject to change without notice. this mate ria l is p rovided as is and without any express or implied w arranties , i ncluding me rch antabilit y, fi tness for a pa r ticular purpose and non-infringement . conexant shall not be liable for any special, indirect, incidental or consequential damages as a result of its use. ordering information marketing name modem smartdaa? o rdering number v.22 bis modem CX90240 cx20548-11z ds22-csm-11z evaluation board rd02-d390-5xx data sheet and design guide doc# 201394 at command manual doc# 102000 serial interface dte/host inerface mcu/dsp smartdaa interface digital isolation barrier (dib) telephone line interface codec line side dib interface (lsdi) CX90240 modem 28-pin qfn cx20548 smartdaa 4 line side device (lsd) 16-pin qfn daa hardware telephone line tip ring ram rom 28.224 mhz or 27.000 mhz crystal or clock source optional nvram external discrete components CX90240 v.222bis modem simplifed interface 07-2715 embedded dial-up modems v.22bis applications www.conexant.com general information: u.s. and canada: (888) 855-4562 international: 1+ (949) 483-3000 headquarters 4000 macarthur blvd. newport beach, ca 92660 doc# pbr-201395 conexant product portfolio the companys broad portfolio of semiconductor products also includes client-side dsl, cable, and dial-up modem solutions; fiber optic system-on- chips; broadcast video encoders and decoders; and digital set-top box components and systems solutions. additional products include a complete line of asymmetric and symmetric dsl central office solutions, which are used by service providers worldwide to deliver broadband data, voice, and video over copper telephone lines.
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