CX24302 Block Diagram
150 MHz
ARM CPU
4KI / 4KD
SDRAM
16-bit
SDRAM
Controller
MP@ML
Video
Decoder
GXA 2D
Graphics
Engine
S/PDIF
Audio
Decoder
MPEG
TV Display
Refresh and
Compositing
NTSC/
PAL/
SECAM
TV
Encoder
6 DACs
Audio
DAC
SmartDAA
Modem
Interface
Transport Demultiplexer
/ Descrambler
1-45Msps
QPSK
Demod
CX24113
Tuner
Serial TS
Input
(HSDP)
FLASH
HSDP
USB 2.0
USB 2.0
EJT
A
G
DVB-CI
DVB-CI
Module
DVB-CI
Module
CX20493
DAA Line
Side
Device
Smart Card I/F
IR TX/RX
UART
GPIO/I2C
PWM
Set-top Box Solutions
Satellite
Distinguishing Features
MPEG-2/DVB broadcast service decoder for
worldwide FTA and FTA/CI markets
High-performance 32-bit 150 MHz
ARM946 CPU
High-performance 2D graphics rendering
acceleration
High-performance 16-bit SDRAM memory
controller architecture
Integrated satellite Blind Scan function
256-pin PBGA package
Bidirectional HSDP
USB 2.0 with On-The-Go support
DVB-CI support
SmartDAA modem support
Complete reference design package
complete software solution
Part Number CX24302
Description
Low-Cost,High-QualityMPEGDecoder
forFTAandFTA/CIDVB-SSet-topBoxes
CX24302
Low-Cost,High-QualityMPEGDecoder
forFTAandFTA/CIDVB-SSet-TopBoxes
Conexant'sportfolioincludesacomprehensivesuiteofsemiconductorsolutions
forbroadbandcommunications,enterprisenetworks,andthedigitalhome.
Conexant'sSingle-ChipICset-topbox(STB)systemsolutionfeaturesallthemajor
subsystemsrequiredtoimplementthecoresystemanddecoderelectronicsofa
highlycost-effectivesolutionprovidinghighqualityperformancetargetedtothe
advancedFree-To-Air(FTA)satellitemarket.
TheCX24302offersahighlyintegrated,costeffectivesolutionforadvancedFTA
STBsfeaturinganMPEG-2MP@MLdecoder,integrated1-45Mspsquadrature
phase-shiftkeying(QPSK)demodulator,a32-bitRISCCPU,a2Dgraphicsaccelerator,
TVencoder,avideo/graphicsdisplaycompositingcontroller,6integratedvideo
DACs,andasetofperipheralI/OportsforSTBfrontandbackpanelconnectors.
TheCX24302alsofeaturesexpansioncapabilityviaafullyintegratedUSB2.0port,
whichincludessupportforOn-The-Goapplicationsaswellasdualdigitalvideo
broadcast-commoninterface(DVB-CI)support,andsupportforareturnchannel
viaahost-controlledV.92modem.
Withtheintegratedhigh-speeddataport(HSDP)thateasilyinterfacestoavariety
ofbroadbandfront-endstheCX24302ICcanalsoserveasacommonback-end
platformforterrestrialandcableapplications.Foracompletesystemhardware
design,theonlyadditionalcomponentsrequiredareatuner,audioDACs,SDRAM,
andflashmemoryICs.
Thishighlevelofintegrationdeliversthelow-costsystembill-of-materials(BOM)
andhigh-featureMPEGsolution.IntegratingtheCX24302withtheConexant
CX24113tunerprovidesacost-effectivesolutionforsatellitesystems.TheCX24302
andCX24113areavailableinafullymanufacturablereferencedesignpackage
featuringcompleteschematics,layout,BOMinformation,andacompletesoftware
solution,includingelectronicprogramguide(EPG)anddrivers.
2005,ConexantSystems,Inc.AllRightsReserved.ConexantandtheConexant
logo are registered 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.
Conexantshallnotbeliableforany
special,indirect,incidentalorconsequentialdamagesasaresultofitsuse.
Full-Featured Development Platform
TheCX24302isintegratedintoafullyengineeredSTBreference
designwhichalsofeaturesConexant'sawardwinningCX24113
DVB-Stuner.Thisreferencedesignprovidesalow-costsystembill
ofmaterials(BOM)andreducesoveralldevelopmenttimeandcost.
Thehardwareplatformcomesequippedwithafullyfunctional
Conexantsoftwaresolution,includinglicensefreeoperating
system,applicationsoftware,supportforthirdpartymiddleware,
EPGandallrequireddriversprovidingacompleteSTBsolution.
Amatureandrobusthardwareabstractionlayerisassuredby
re-useofcoredriverlibrariesdevelopedonearlygenerationICs
whichalsominimizesdevelopmenttimebyensuringreuseof
softwaredevelopedonpreviousConexantplatforms.
ThereferencedevelopmentplatformSTBhardwareisbased
onexistingreferencedesignplatformsandisdesignedtobe
fullymanufacturable.
Conexant's Product Portfolio
Thecompany'sbroadportfolioofsemiconductorproductsalso
includesclient-sideDSLandcablemodemsolutions,home
networkprocessors,broadcastvideoencodersanddecoders,
digitalSTBcomponentsandsystemssolutions,anddial-up
modems.InadditiontoitsIEEE802.11a/b/g-compliantwireless
localareanetwork(WLAN)chipsets,software,andreference
designs,Conexantoffersasuiteofnetworkingcomponents
thatincludessolutionsforapplicationsbasedonHomePlug
SM
andHomePNATM.Additionalproductsincludeacompleteline
ofasymmetricandsymmetricDSLcentralofficesolutions,
whichareusedbyserviceprovidersworldwidetodeliver
broadbanddata,voice,andvideoovercoppertelephonelines.
05-1471
Set-top Box Solutions
Satellite
CX24302Features
MPEG-2 MP@ML video decoder supporting NTSC
and PAL CCIR601 image resolution
MPEG-1/MPEG-2 audio decoder
MPEG-2/DVB, transport stream demultiplexing
NTSC/PAL/SECAM TV encoder supporting simultaneous
CVBS, YC, and RGB/YPrPb analog video output signals
NTSC/PAL auto conversion
150 MHz 32-bit ARM946 CPU with 4 KB (I&D) caches
16-bit SDRAM support
RS-232
I2C
4/8 bpp on-screen display (OSD) support
DiSEqC 2.x
NDS ICAM support (optional)
Smart card interface
Sony/Philips Digital Interface Format (S/PDIF)
Audio Output
Dual DVB-CI support
Integrated USB 2.0 with On-The-Go support
Optional Macrovision 7.1 support
SmartDAA modem device support
SCART support
Programmable Flash memory Interface
JTAG
Infrared transmit/receive
www.conexant.com
General Information:
U.S. and Canada: (888) 855-4562
International: (732) 345-7500
Headquarters
4000 MacArthur Blvd.
Newport Beach, CA 92660
Order# 102660A
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