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Set-top Box Solutions Satellite
Single-Chip FTA and FTA-CI Set-Top Box System Solution
CX24142/3/6/7
Complete IC System Solution for Worldwide FTA and FTA-CI Platforms
Conexant's broadband communications portfolio includes a comprehensive suite of semiconductor solutions that enable the digital home and information network. Conexant's Single-Chip Free-To-Air (FTA) and FTA-Common Interface (FTA-CI) Set-top box (STB) System Solution features all the major subsystems required to implement the core system and decoder electronics of a DVB-compliant FTA-CI STBs. The CX24142/3/6/7 IC family includes an MPEG-2 A/V decoder (Dolby Digital audio is optional), transport processor, a 32-bit RISC CPU, a hardware 2D graphics accelerator, TV encoder, QPSK demodulator (CX24142/3 only), a video/graphics display compositing controller, support for dual DVB-CI interface (CX24142/6 only), and a set of peripheral I/O ports for set-top box front and back panel connectors. For a complete system hardware design, the only www..com additional components required are a tuner, modem codec (optional), audio DAC, SDRAM and flash memory ICs. This high level of integration results in a very lowcost system bill-of-materials for FTA and FTA-CI STB markets worldwide.
Common Platform for Satellite, Cable, and Terrestrial
STB manufacturers increasingly look to leverage a common hardware platform that can be reused over various broadband networks including satellite, cable, terrestrial, DSL and Ethernet IP networks. Conexant's CX24146/7 ICs can serve as a common back-end platform that easily interfaces to a variety of broadband front-ends through a transport stream interface. This provides a flexible STB solution that can be targeted to a variety of STB applications while minimizing hardware/software development costs. CX24142-3 devices, with an integrated QPSK demodulator, provide a cost effective system solution for DVB-S satellite STBs.The CX24142/3/6/7 ICs are pin-to-pin compatible and software compatible with the CX2415x family of ICs.
CX24142/3/6/7 Distinguishing Features
* MPEG-2/DVB broadcast service decoder for DVB-S/T/C markets * Integrated 1-45 Msym/sec QPSK/ BPSK demodulator/FEC with DiSEqC 2.x signaling support (CX24142/3 only) * 32-bit 146 MIPS ARM920 CPU with 16KB I & D caches * Dual-slot Common Interface support (CX24142/6 only) * 16-bit unified memory controller architecture * Integrated NTSC/PAL/SECAM TV encoder supporting simultaneous CVBS, Y/C & RGB/YPrPb analog video output signals * Complete V.22 software modem available
Full-Featured Development Platform
The CX24142/3/6/7 IC family is integrated into a fully engineered STB reference development system that implements third-party interactive middleware/RTOS platforms and provides complete STB functionality. The hardware platform comes equipped with fully integrated Nucleus+, pSOS and VxWorks runtime libraries and driver software components. A mature and robust hardware abstraction layer is assured by re-use of core driver libraries developed on previous generation ICs. The development platform set-top box hardware is designed in a two-layer PCB configuration and includes a choice of two robust tool chain development environments for code developers: ADS 1.2 from ARM, Inc. and Tornado 2.2 from WindRiver Systems, Inc. Conexant offers a complete development code solution that has been tightly integrated with both third party tool chain environments.
Part Number CX24142/3/6/7 Description Single-Chip FTA and FTA-CI
Set-top Box Solutions Satellite
CX24142/3/6/7 Features
* MPEG-2 MP@ML video decoder supporting NTSC and PAL
CCIR601 image resolution
* MPEG-1/MPEG-2 and Dolby Digital (AC-3) audio decoder * MPEG-2/DVB transport stream demultiplexing * Integrated 1-45 Msym/sec QPSK/BPSK demodulator/FEC with
* Integrated NTSC/PAL/SECAM TV encoder supporting
simultaneous CVBS, Y/C & RGB/YPrPb analog video output signals
* High-performance 2D graphics rendering acceleration * Multiplane video/graphics compositing and display engine * Integrated DVB common descrambler & DES ECB descrambler * Optional NDS Videoguard conditional access hardware support * Flicker filtering, aspect ratio conversion and hardware cursor * 4/8-bit per pixel palletized AYCrCb/YCrCb graphics
DiSEqC 2.x signaling support (CX24142/3 only)
* 32-bit 146 MIPS ARM920 CPU with 16KB I & D caches * Dual-slot Common Interface support (CX24142/6 only) * Dual SmartCard interface for flexible CAS support * 16-bit unified memory controller architecture
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The CX24142/3/6/7 IC family includes four part numbers defined by different functionality combinations.
License-based feature configurations are identified using a part number suffix or dash number. CX24142/3/6/7-mn
Part Number CX24142 CX24143 CX24146 CX24147
QPSK Demod Yes Yes No No
VDACs 6 6 6 6
DRAM 16-bit 16-bit 16-bit 16-bit
DVB-CI Yes No Yes No Dolby Digital Macrovision
"-1n"
"-2n"
"-3n"
"-4n"
m = License based feature (0 thru 4) n = die revision (e.g. n=1 for die rev A, 2 for die rev B etc.)
(c) 2003, Conexant Systems, Inc. All Rights Reserved. Conexant and the Conexant logo are 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.
www.conexant.com General Information: U.S. and Canada: (800) 854-8099 International: (949) 483-6996 Headquarters - Newport Beach 4311 Jamboree Rd, P Box C .O. Newport Beach, CA 92660-3095 Order# 102214A
Conexant shall not be liable for any
special, indirect, incidental or consequential damages as a result of its use.
03-0882

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