Single-Chip Broadband Wireless Modem CX24942 Conexant Offers

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Single-Chip Broadband Wireless Modem CX24942 Conexant Offers

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Single-Chip Broadband Wireless Modem
CX24942
Conexant Offers World-Class Broadband Access Platform with Cost, High Performance, Flexibility
InfoSurgefamily products supporting broadband access applications presents industry with another example Conexant's ability meet growing needs emerging market segment. CX24942, Conexant's single-chip broadband wireless modem within InfoSurge family products, offers unique solution supporting worldwide fixed wireless deployment with multitude peripheral connections including Ethernet USB. CX24942 supports internal external broadband wireless modem applications, well digital set-top boxes, home networking, telephony products. This unique excels three very important categories when choosing solution broadband access applications: cost, performance, flexibility through field programmability.
Distinguishing Features
Cost
Through unsurpassed levels integration, unique architecture, leading-edge manufacturing techniques, Conexant accomplished level cost reduction second none. single-chip broadband wireless modem includes 10-bit A/D, 10-bit D/A, 64/256 demodulation with Annex forward error correction, QPSK demodulation (Annex QPSK/16 burst transmitter, programmable MAC, embedded ARMmicroprocessor, 10/100 Ethernet MAC, transceiver, SRAM. addition, offers peripheral interfaces accommodate telephony, home networking, video products. intelligence built into this results broadband modem bill materials (BOM) unmatched industry.
Direct sampling Integrated A/Ds D/As support Programmable Embedded ARM9 HOST Integrated 10/100 Ethernet with peripheral transceiver Low-cost support 16/64M SDRAMs
Single-Chip Broadband Wireless Modem
CX24942
Performance
Each piece CX24942 architecture offers unique contribution overall performance CX24942. cumulative effect each these pieces unsurpassed performance system level, resulting broadband access device consumer enjoys using. front contains fifth-generation physical-layer receiver that accepts direct signal MHz) leading significant reduction over competition. also contains 10-bit converter operating well above with significant bits, resulting back channel that accommodate upstream bandwidth. programmable built into embedded RISC that only enough horsepower DOCSIS functionality, offers enough performance accommodate emerging applications like IEEE 802.16. CX24942's unique packet management, unified memory architecture, advanced system buses enable high-speed Internet access device.
CX24942
CX24942 system diagram
What Broadband Modem?
broadband modem device that allows high-speed data access from Internet fixed wireless, cable DSL, Satellite network. modem true sense word modulates demodulates signals delivers Internet data desktop blazing speeds. simply uses increased bandwidth transmission medium
Flexibility through Field Programmability
flexibility CX24942 product offers four main advantages manufacturer. First, platform provides option adapt multitude standards downloading different software onto embedded RISC engine. Second, flexibility enables OEMs poised emerging applications like telephony home networking. Third, platform contains RISC engines with excess MIPS, offering OEMs flexibility their proprietary unique differentiation software. Finally, CX24942 significantly reduces hardware development time having software-upgrade capabilities.
instead ordinary phone line.
Broadband modems part modem, part tuner, part encryption/decryption device, part bridge, part router, part card, part SNMP agent, part Ethernet hub. They typically have connections: cable wall outlet other computer.
Online access broadband modems allows users download information from online services 1,000 times faster than today's fastest telephone modems. Here's quick comparison between broadband modem typical traditional modem. Broadband modem speeds range from Kbps (500,000 bits second) Mbps million bits second). traditional V.90 modem tops only 56,000 bits second. That's difference 444,000 bits second. Hardware companies presently developing Mbps broadband modems (30,000,000 bits second) which thousands times faster than ordinary telephone modems.
Conexant working what's next broadband
CX24942 block diagram
modem technologies home office users will able download more information from Internet less time.
Product Features
External Communication Blocks
Downstream Direct sampling QSPK; 16/64/256 multiple interleaving depths 10-bit Upstream QPSK/16 burst modulator Programmable equalization D/As RF/IF control 10-bit On-chip control power amplifier devices Programmable Master Slave Host Interface Master mode: telephony, telco return, video solutions) 16-bit data 8-chip selects 16/32-bit slave mode: external host test Write read strobes data strobe Data transfer handshaking interrupt support External interface Flash External SDRAM Interface SDRAM technology (120 MHz) Depths from Support both technology Ethernet sublayer IEEE 802.3 10/100 Mbps full duplex Half-duplex loopback operation Media Independent Interface (MII) Optional wire serial interface operation On-chip full-speed transceiver Device interface host controller/hub UART Asynchronous RxD/TxD serial port: 8-bits data, stop bit, parity Peripheral GPIO JTAG boundary scan Crystal Oscillator Low-jitter oscillator Phase-Locked Loops Transmit clock generator reference clock generator clock generator Voice frame sync generator Package Power 3.3V Power supply: 3.3V 1.8V
Internal Block Features
Embedded Processor ARM940T microcontroller 5-stage instruction pipeline Harvard load/store architecture separate instruction data buses Debug extensions embedded Memory Blocks Internal SRAM 16-bit interface external SDRAM: Controller asynchronous channels Memory memory moves: aligned/unaligned Source/destination mode simple data transfer Circular/linked buffer support inbound/outbound data Internal Architecture 32-bit advanced system (ASB) 64-bit advanced peripheral (APB) Bridge: master/slave, master Cable (Programmable) DOCSIS compliant DOCSIS compliant Europe Filters; PID, DA/SA, SID, Multicast, 56-bit engines 32-bit single-cycle engines
Miscellaneous Functions 32-bit system timer, four 16-bit timers IRQ#/FIQ# interrupt controller
Product Applications
Point-to-multipoint wireless modem Point-to-point wireless modem Cable Modems with Ethernet Cable Modems with Cable Modem with HPNA Cable Telephony Products
www.conexant.com General Information: U.S. Canada: (800) 854-8099 International: (949) 483-6996 Headquarters Newport Beach 4311 Jamboree Newport Beach, 92660-3095 Order# 101647A 01-0446
2001, Conexant Systems, Inc. Rights Reserved. Conexant Conexant logo trademarks Conexant Systems, Inc. Other trademarks owned their respective owners. Although Conexant strives accuracy publications, this material contain errors omissions subject change without notice.
THIS MATERIAL PROVIDED
WITHOUT EXPRESS IMPLIED WARRANTIES, INCLUDING MERCHANTABILITY, FITNESS PARTICULAR PURPOSE NON-INFRINGEMENT.
Conexant shall
liable special, indirect, incidental consequential damages result use.

Single-Chip Broadband Wireless Modem CX24942 Conexant Offers

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