set-top box solutions
Satellite
HDTV MPEG-2/H.264/VC-1 Video Decoder
with PVR Support
CX24500
Conexant’s portfolio includes a comprehensive suite of semiconductor
solutions for broadband communications and the digital home.
Conexant’s CX24500 is a highly integrated, MPEG-2/H.264/VC-1, DIRECTV/
DVB
®
compliant, back-end decoder IC solution for high-definition digital TV
systems with support for personal video recorder (PVR) applications, which
can be deployed in digital satellite, cable, Telco or terrestrial TV networks.
The CX24500 features a flexible multi format video decoder capable
of decoding High Definition or Standard Definition programs in MPEG-2,
H.264 and VC-1 formats. The audio decoder supports multiple audio
format decoding, including MPEG-1, MPEG-2, Dolby
®
Digital, Dolby
Digital+. MPEG-4 aac and aacPlus™, WMA and WMA Pro. An integrated
ARM1176 CPU with 32K Instruction and Data cache supplies over
730 Dhrystone 1.2 MIPS at 550MHz, and a high performance 667 MHz 32-bit
DDR-2 SDRAM memory controller gives ample processing power for
advanced applications and future expansion capability. An additional 16-bit
DDR-2 SDRAM controller is also available for high performance applications.
PVR functionality is supported by a multi-stream transport processor, based
on a dedicated RISC engine, supporting eight simultaneous transport streams
(four from baseband inputs and four from DMA interfaces). The transport
processor unit also supports DVB, DES, AES or Multi-II descrambling and
contains hardware support for the NDS conditional access system. The
CX24500 integrates two serial ATA2 controllers with support for internal and
external HDD attachment with 3DES/AES ciphering engines for encryption
of data to the HDD.
The CX24500 also features an impressive array of I/O features, including
HDMI v1.3 with HDCP dual USB 2.0 host controller with integrated Phys,
,
an additional USB1.1 solution, dual integrated 10/100 Ethernet MAC with
MII, PCI bus and HomePlug
®
connectivity via a high-speed UART and
an integrated V.92 hardware modem. The CX24500 fully supports cable
applications when used in conjunction with the CX24450-CX24453
DOCSIS 2.0+ STB Front End IC, supporting an OpenCable™ Cable CARD™
M-Card™ interface.
Distinguishing Features
• DVB/DIRECTV
®
compliant back-end
HDTV decoder for worldwide markets
• High-performance ARM1176 CPU with
32K I/D cache providing 730+ DMIPS
• PVR support with dual eSATA-2 interfaces
• Integrated V.92 hardware modem
• Multiple OS support including Nucleus+,
VxWorks, Linux
®
and Windows
®
CE
• MPEG-2, H.264 and VC-1 video decoder
• Advanced audio decoder with multiple
audio format support
• Advanced security features including
secure boot software authentication,
IC personalization via OTP memory, SVP
support and 3DES/AES ciphering engines
• HDMI v1.3 transmitter with HDCP
content protection
• High performance de-interlacer with 480i
or 1080i to480p/720p conversion
• Dual USB2.0
• OpenCable M-card support
part number
CX24500
description
HDTV MPEG-2/H.264/VC-1 Video
Decoder with PVR Support
CONEXANT [ CONEXANT SYSTEMS, INC ]
