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 Recorders, Meters, Security Systems, Remote Site Management, and other applications that require robust dial-up connectivity. Integrating a microcontroller, 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 addition, the SmartDAA interface hooks directly to Conexant's field-proven, market-leading 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 working 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 generations of firmware expertise and knowhow that, coupled with Conexant’s market-leading 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 Applications Point of Sale (POS) terminals Set Top Boxes (STB) Security Systems Remote Site Management Meters Videophone Terminals Benefits SPI Interface Uses I/O shared with other SPI peripherals - alleviates need for host to support traditional serial interface Controller-based modem, no external memory required OS independent and minimal host intervention Up to V.92 Robust dial-up connectivity Description Robust and field proven CID support Meets performance criteria needed for Set-Top Box applications V.92/V.34/V.32bis Controllered SPI Modem with CX20548 SmartDAA® for Embedded 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 Part Number CX93040-1x CSPMxx CX93040-1x CSPMxx Features Slave SPI Interface Modulations and protocols – ITU-T V.92: Quick Connect, Modemon-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 Optional serial NVRAM interface for country profile storage and code upgrades Full-duplex 8-bit/16-bit PCM voice passthrough 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 DAA Hardware CX93040-1x Modem 20-Pin QFN SPI Bus Interface 28.224 MHz Crystal or Clock Source Telephone Line DTE/Host Interface RAM CX20548 SmartDAA 4 Line Side Device (LSD) 16-Pin QFN Digital Isolation Barrier (DIB) MCU/DSP SmartDAA Interface ROM Line Side DIB Interface (LSDI) Codec Telephone Line Interface External Discrete Components TIP RING Optional NVRAM Conexant Product Portfolio Conexant’s comprehensive product portfolio includes solutions for imaging, audio, video surveillance, and embedded modem applications © 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. 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