CONEXANT CX2418X

Set-top Box Solutions
Telco/IP TV
MPEG-4 AVC/H.264 Video Decoder
CX2418x
Conexant’s portfolio includes a comprehensive suite of semiconductor
solutions for broadband communications, enterprise networks, and the digital
home. The CX2418x is the world’s first family of HDTV video decoder ICs fully
compliant with the MPEG-4 advanced video coding (AVC) standard, also known
as ITU H.264. The CX2418x decoder supports Main Profile and High Profile up
to Level 4.0, with high-definition video resolutions up to 1920 x 1080.
In addition to the AVC/H.264 video decoder core, the CX2418x family includes
an integrated ARM926EJ-S CPU, high-performance 16/32-bit DDR400 SDRAM
memory controller, transport stream interface and processor, MPEG-2 [email protected]
video decoder, and a display controller that supports both standard definition and
high-definition digital outputs.
The CX2418x provides a simple glueless interface to Conexant system ICs. A
serial transport stream input accepts the compressed video input stream and
a PCI or a 16-bit local bus provides the control interface. A CCIR656 (standard
definition) or SMPTE274/SMPTE296 (high definition) interface outputs the
decoded video pictures.
Decoding of 1920 x 1080 resolution high-definition video is efficiently implemented
in hardware and requires less than 32 MB of memory. The CX2418x family
includes advanced technologies such as a de-blocking filter, stream error
detection and recovery features, and motion estimation/compensation techniques
that enhance compression performance and video quality.
With the introduction of the CX2418x product family, Conexant is able to
provide a complete end-to-end set-top box (STB) solution that supports the
latest in advanced modulation and compression technologies and enables
broadcasters and service providers to deliver significantly more content over
the existing infrastructure.
Hardware/Software Development Platform
The CX2418x IC family is integrated into a complete high-definition television
(HDTV) STB reference development system that features the CX2417x HDTV
main system processor and other Conexant ICs to enable rapid development of
an HD/H.264 IP STB. A complete standard-definition television (SDTV) reference
platform is also available to enable SD/H.264 IP STB development. A compact
daughter board with the CX2418x and DDR memory devices is also available.
The reference platform provides a complete set of STB low-level drivers
based on Nucleus+, VxWorks®, and Linux operating systems. A mature
and robust hardware abstraction layer is assured by re-use of core driver
libraries developed over four generations of MPEG ICs. Conexant provides a
complete development software solution that has been tightly integrated with
a third-party tool chain environment and offers a 90-day evaluation license for
Nucleus+ and VxWorks runtime libraries.
Distinguishing Features
• Fully compliant MPEG-4 AVC/H.264
High [email protected] 4.0 video decoder
• MPEG-2 [email protected] video decoder
• 16/32-bit DDR400 memory
controller
• High-performance ARM926EJ-S
CPU with ARM Jazelle® technology
• 16-bit I/O and 32-bit PCI buses
• SMPTE 274 / SMPTE 296 high definition digital video interface
• CCIR656 standard definition digital video interface
• Triple data encryption standard
(DES) encryption/decryption of
transport stream interface
• Advanced de-blocking filter and
error concealment features
Part Number CX2418x
Description
MPEG-4 AVC/H.264 Video Decoder
Set-top Box Solutions
Telco/IP TV
The company’s broad portfolio of semiconductor products also
includes client-side DSL and cable modem solutions, home
network processors, broadcast video encoders and decoders,
digital STB components and systems solutions, and dial-up
modems. In addition to its IEEE 802.11a/b/g-compliant wireless
local area network (WLAN) chipsets, software, and reference
designs, Conexant offers a suite of networking components
that includes solutions for applications based on HomePlug ®
and HomePNA™. Additional products include a complete line
of asymmetric and symmetric DSL central office solutions,
which are used by service providers worldwide to deliver
broadband data, voice, and video over copper telephone lines.
CX24182
AVC/H.264 Decoder
DDR DRAM
I/O Bus or PCI
TS
CLK
I/O Bus or PCI
YUV
CX2417x HDTV
Host Decoder
Ethernet
CX24183
AVC/H.264 Decoder
DDR
Ethernet
YCrCb/
HDMI
TS
CLK
656
CX24436 SDTV
Host Device
CVBS
SATA
DDR DRAM
DDR DRAM
HDTV with AVC/H.264 STB System Diagram
SDTV with AVC/H.264 STB System Diagram
DDR SDRAM
Memory
Controller
16/32-bit DDR
PCI
Host I/F
Serial
Port
CX24182
YCrCb
CCIR656/
SMPTE274/
SMPTE296
Display
Controller
Buffer
CCIR656
CX2418x Part Number & Feature Matrix
MPEG-4 AVC
[email protected] Decoder Core
16KB
SRAM
TS
Processor
TS
Interface
ARM926
16KB
Cache
MPEG-4 AVC
HW Engines
AVC/H.264
High
Profile
SDTV
Interface
HDTV
Interface
MPEG-2
Decode
CX24182
X
X
X
X
CX24183
X
X
Part
Number
RSB
SRAM
MPEG-2
[email protected]
Decoder
CLK
Input
TS
Input
MPEG-4 AVC/H.264 Video Decoder Block Diagram
© 2005, Conexant Systems, Inc. All Rights Reserved. Conexant and the Conexant
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.
Conexant shall not be liable for any
special, indirect, incidental or consequential damages as a result of its use.
04-1337
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# 102551B
AVC/H.264
Main
Profile
X