Navigate Up
Help (new window)
Skip Navigation LinksConexant > Products > Modem > Embedded Modems > CX93040 - SPI V.92 Modem with 4th Generation SmartDAA

CSPM92/34/32 Controllered SPI Modem with 4th Generation SmartDAA




The CX93040 is Conexant's controller-based SmartModem with SPI host interface. It integrates a microcontroller, digital signal processor, memory and a SmartDAA® interface onto a single die. The modem comes in a small 20-pin Quad Flat-No Lead (QFN) package, adds support for SmartDAA 4 and adds Fax and SIA protocols, making it the most complete low-cost embedded modem in the market. The CX93040 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.

Conexant's SmartDAA 4 products allow customers to reduce their bill-of-material costs and PCB space requirements.


Point of Sale (POS) Terminals
Set-Top Boxes (STB)
Security Systems
Remote Site Management
ATM Machines


  • Controller-based modem, no external memory required
  • V.92, V.34 and V.32bis options: V.92 includes Quick Connect, Modem-on-Hold and PCM Upstream
  • V.29 FastPOS and V.22 Fast Connect for Point-of-Sale applications
  • SIA Protocol for Security Equipment
  • V.17/V.29 Fax Class 1/1.0 Support (Fax Class 2 support coming soon)
  • Caller-ID Type 1, Caller-ID Type 2, Caller-ID Type 2 snooping detection and decoding
  • V.44/V.42bis and MNP5 data compression
  • V.42 and MNP2-4 error correction
  • V.80 sync access mode, synchronous and asynchronous DTE interface
  • Supports code patching through SRAM or NVRAM
  • 28.224 MHz crystal or clock input support
  • Comes in 20-pin QFN 6mmx6mm packaging
  • Uses Conexant SmartDAA 4 CX20548-11Z in a 16-pin QFN 4x4mm package
  • Worldwide support with a single design

 Technical Documents

Product BriefPBR-CX93040-001.pdfPBR-CX93040-001V.92/V.34/V.32bis Controllered SPI Modem with CX20548 SmartDAA for Embedded Applications
11/25/2012 7:54 PM

 Request Quote

To request more information on specific products or technology, please fill out the following form, or contact us direct by phone.

First Name *:
Last Name*:
Title/Job Function:
Annual Sales:
Decision Date:
Part Number:
Please state your request*:

* Required fields