preliminary information this document contains information on a new product. the parametric information, although not fully characterized, is the result of testing initial devices. CX93040-1x cspmxx v.92/v.34/v.32bis controllered spi modem with cx20548 smartdaa? for embedded applications the CX93040 modem, paired with the cx20548 smartdaa? 4 line side device (lsd), is well suited to embedded applications such as point of sale (pos) terminals, set-top boxes (stb), video re corders, meters, security systems, remote site management, and other applic ations that require robust dial-up connectivity. integrating a microcontroll er, digital signal processor, memory, and a smartdaa? interface onto a single die, the CX93040 is easily adaptable for just about any application, completely independent of the host processor and operating system. in additi on, the smartdaa interface hooks directly to conexant's field-proven, market-lead ing fourth-generation silicon daa, supporting the lowest component line-side design and permitting a single-cost, optimized sku capable of meeting and exceeding global ptt standards. setting the CX93040 apart is the addition of an spi interface, which allows for maximum flexibility in the main processor. found in virtually every soc and/or main processor, spi is a shared bus wo rking in a master/slave configuration, and requiring only one set of i/os for all peripherals that attach to the spi bus. this is in stark contrast to a uart port for an rs232 serial bus, which requires a set of dedicated i/os for each peripheral. using an spi bus allows the CX93040 to eliminate a uart port on the soc and its associated pins that would have otherwise been dedicated for the modem. the CX93040 is offered in three versions , 1) v.32bis, 2) v.34 and 3) v.92. furthermore, CX93040 leverages three gener ations of firmware expertise and know- how that, coupled with conexant?s market-l eading and field-proven daa and full reference design kits, makes this modem the easiest, most mature and robust modem in which to design. the CX93040 controllered spi modem device set is available in the smallest footprint and environmentally friendly, rohs /green-compliant packages consisting of a CX93040 spi interface modem device in a 6x6mm 20-pin quad flat-no lead (qfn) package and cx20548 smartdaa 4 lsd in a 4mmx4mm 16-pin qfn package. key features benefits spi interface uses i/o shared with other spi peripherals - alleviates need for host to support tr aditional serial interface controller-based modem, no external memory required os independent and minimal host intervention up to v.92 robust dial-up connectivity robust and field proven cid support meets performance criteria needed for set-top box applications support for pos specific fast connect protocols compatibility with established pos server base. smartdaa support allows worldwide support with a single design optional serial nvram interface allows additional country profile storage and code upgrades reference design supporting 6kv quick time to market and low system cost applications ? point of sale (pos) terminals ? set top boxes (stb) ? security systems ? remote site management ? meters ? videophone terminals part number CX93040-1x cspmxx description v.92/v.34/v.32bis controllered spi modem with cx20548 smartdaa? for embedded applications
CX93040-1x modem 20-pin qfn mcu/dsp smartdaa interface dte/host interface ram rom 28.224 mhz crystal or clock source digital isolation barrier (dib) optional nvram cx20548 smartdaa 4 line side device (lsd) 16-pin qfn line side dib interface (lsdi) codec telephone line interface external discrete components daa hardware telephone line tip ring spi bus interface CX93040-1x cspmxx features ? slave spi interface modulations and protocols ? itu-t v.92: quick connect, modem- on-hold and pcm upstream ? v.90/v.34/v.32bis/v.32 ? v.22bis/v.22/v.23/v.21 ? v.23 reverse, v.23 half-duplex ? bell 212a/bell 103 ? v.29 fastpos and v22 fast connect ? sia protocol and contact id for alarm equipment ? v.80 synchronous access mode ? v.17/v.29 fax class 1/1.0 and fax class 2 ? v.44/v.42bis/mnp5 data compression ? v.42/mnp2-4 error correction ? call waiting (cw) detection for selected countries ? hardware and software flow control and speed buffering ? embedded and upgradable 63 country profiles conexant product portfolio conexant?s comprehensive product portfolio includes solutions for imaging, audio, video surveillance, and embedded modem applic ations . 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-202792 ? optional serial nvram interface for country profile storage and code upgrades ? full-duplex 8-bit/16-bit pcm voice pass- through mode ? 28.224 mhz xtal or clock input ? worldwide operation ? complies to tbr21 and other country requirements ? type i caller id (cid) decoding ? type ii caller id snooping ? call progress, blacklisting ? meets worldwide dc mask requirements ? low power and voltage ? single +3.3 v supply ? low power consumption mode ? +3.3 v i/o level ? compact, robust board design ? reference design files provided for quick time-to-market ? reference design tested for ptt and tbr.21 approvals ? small, low-profile modem packages ? reference design supports 6kv isolation smartdaa features ? extension pick-up detection ? digital line protection ? line reversal detection ? remote hang-up detection ? worldwide compliance ? cx20548 smartdaa 4 lsd in a 16-pin qfn ? worldwide support with a single design ? 2011 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 material is provided as is and without any express or implied warranties, including merchantability, fitness for a particular purpose and non-infringement. conexant shall not be liable for any special, indirect, incidental or consequential damages as a result of its use.
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