CX20548 ESFxx Soft Modem ImagingSmart™ Product Brief ESF Soft Modem Technology with SmartDAA® 4 for Embedded Linux on SoCs/MPUs with Integrated Conexant SSD Product Overview Key Features The ESFxx using the CX20548 SmartDAA® 4 LSD is well-suited to embedded applications such as POS CX20548 terminals, STBs, Internet appliances, meters, security systems, remote site management, and other applications that require robust dial-up connectivity. The ESFxx software modem consists of a Conexant-supplied CX20548 SmartDAA 4 LSD and Conexant SmartDAA interface (SSD) that are embedded into various SoC devices, specifically Atmel’s SAM9G and SAMA5 family of MPUs. The modem functionality is achieved by the SoC running Conexant-supplied modem driver code built for the Linux kernel along with Conexant's field-proven, marketleading fourth-generation silicon DAA. This combination supports the lowest component LSD, and permits a single-cost, optimized SKU that is capable of meeting and exceeding global PTT standards. • • • • • • • The ESFxx is offered in V.22bis, V.32bis, and V.34 versions. The ESFxx leverages many generations of signal processing expertise and know- how that, coupled with Conexant’s market-leading and fieldproven DAA and third-party reference design kits, makes this modem robust and easy to design. The ESFxx modem is available in the smallest footprint and environmentally friendly, RoHS/green-compliant packages consisting of a CX20548 SmartDAA 4 LSD in a 4mmx4mm 16-pin QFN package. Applications • • • • POS terminals Security systems Internet appliances Telecare • • • • • • Conexant soft modem technology Two-wire DIB interface Up to V.34 Single 4mmx4mm 16-QFN device Linux kernel 2.6.3x modem driver Support for POS-specific fast connect protocols OEM programmable country profiles and fourthgeneration SmartDAA support EVK and reference designs supporting 6kV surge protection Modulations and protocols – V.34/V.32bis/V.32 – V.22bis/V.22/V.23/V.21 – Bell 212A/103 – V.29 FastPOS and V.22 Fast Connect – V.80 synchronous access mode V.44/V.42bis/MNP5 data compression V.42/MNP2-4 error correction Hardware and software flow control Worldwide operation – Complies to TBR21 and other country requirements – Type I caller ID decoding – Type II caller ID snooping – Call progress, blacklisting – Meets worldwide DC mask requirements System Block Diagram C us tom SoC M icro C o n tro lle r In te rn a l A S IC Fu n ctio n s FOOTNOTE: Conexant Confidential • www.conexant.com • 029PBR00 (1) S S D(1) A p p lica tio n In te rfa ce s System Side Device (SSD) Embedded in Custom device D ig ita l Iso la tio n B a rrie r (D IB ) Application H ardw are Interface C X2 0 548 S m a rtD A A4 Line S ide D e v ic e (LS D ) 16 -P in Q FN Te le p h o n e L in e In te rfa ce D iscre te C o m p o n e n ts T IP R IN G T elephone Line T IP R IN G H ands et (O pt ional ) CX20548 ESFxx Soft Modem | ImagingSmart™ Product Brief Additional Features Benefits • • Compact, robust board design – Reference design files provided for quick time-tomarket – 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 • • • • • • • Field-proven and royalty-free software modem technology with CX20548 Interfaces with an SoC device with embedded Conexant HSSD and long DIB operation Robust dial-up connectivity Small PCB area for modem function Widely used kernel for SoC operation Compatibility with an established POS server base Allows worldwide support with a single design Quick time-to-market and low system cost www.conexant.com Headquarters: 1901 Main Street, Suite 300 Irvine, CA,92614 General Information: U.S. and Canada: 888-855-4562 | International: 1 + 949-483-3000 © 2014 Conexant Systems, Inc. All rights reserved. 029PBR00