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CX24182 参数 Datasheet PDF下载

CX24182图片预览
型号: CX24182
PDF下载: 下载PDF文件 查看货源
内容描述: MPEG-4AVC / H.264的视频解码器 [MPEG-4 AVC/H.264 Video Decoder]
分类和应用: 解码器
文件页数/大小: 2 页 / 637 K
品牌: CONEXANT [ CONEXANT SYSTEMS, INC ]
 浏览型号CX24182的Datasheet PDF文件第2页  
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 MP@HL
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 Profile@Level 4.0 video decoder
• MPEG-2 MP@HL 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