Specifications

12
Fixed Wireless Modems
Conexant’s fixed wireless solutions are targeted for the emerging
Point-to-Multipoint Markets in the U.S. (MMDS) and internationally
(3.5 GHz). As standards are just starting to evolve for these market
segments, Conexant’s broadband modem ICs offer a high level of
flexibility with a fully programmable MAC. Conexant is an active
member of various standards bodies that are creating next-generation
specifications and products that will offer non-line of sight solutions.
CX24942 Single-Chip Broadband Wireless Modem
The InfoSurge family of products supporting broadband access
applications presents the industry with yet another example of
Conexant’s ability to meet the growing needs of an emerging
market segment. The CX24942, Conexant’s single-chip broadband
wireless modem within the InfoSurge family of products, offers a
unique solution supporting worldwide fixed wireless deployment
with a multitude of peripheral connections, including Ethernet and
USB. The CX24942 supports internal and external PC broadband
wireless modem applications, as well as digital Set Top boxes,
home networking, and IP telephony products. This unique IC
excels in three very important categories when choosing a solution
for broadband access applications: cost, performance and flexibility
through field programmability.
Features
• Direct IF sampling at 44 and 36 MHz
• Integrated A/Ds and D/As
• FEC A, B and support
• Programmable MAC
• Embedded ARM 9 HOST µP
• Integrated 10/100 Ethernet MAC with MII
CX9470CM Broadband Wireless Modem Reference Design
Conexant’s CX9470CM Broadband Wireless Modem Reference
Design is a complete external broadband wireless modem built
upon the InfoSurge family’s CX24942 single-chip broadband
modem integrated circuit. The CX24942’s high-degree of
integration helps to significantly reduce the overall cost of a
broadband modem. At the same time, the industry’s first
programmable MAC architecture provides the ultimate in flexibility
and upgradeability, often replacing costly Field Programmable
Gate Array (FPGA)-based wireless solutions. The executable
firmware provided with the CX9470CM is DOCSIS-certifiable code.
Customers can use this code for time-to-market considerations
or utilize the flexibility of the programmable MAC and develop
standards-based or their own proprietary code.
Features
• InfoSurge CX24942 Single Chip Broadband Modem
- Highest level of integration
- Programmable MAC architecture
• Complete solution including all software
- DOCSIS-certifiable code
- @Home-approvable code
- WQHL-certifiable Windows drivers
- Software upgradeable to DOCSIS 1.1
• Support for Ethernet or USB
|Modems
Part Number CX24942
Description Single-Chip Broadband Wireless Modem
CX24942 system diagram
CX9470CM system diagram
Part Number CX9470CM
Description Broadband Wireless Modem
Reference Design
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