digital
infotainment
products
PCl Audio/Video
Broadcast Decoder
CX23880/CX23881
Single-Chip Solution Allows TV, Radio, Digital
TV and Broadband Data Capture Over the
PCI Bus
Conexant’s highly-flexible audio and video broadcast decoder
supports all analog broadcast video and audio formats in use
worldwide. This single-chip solution enables the host PC to
perform audio/video capture, video display, audio playback,
or storage and playback at a later time through software or
hardware audio/video codecs.
The CX23880/CX23881 is fully compatible with Conexant’s family
of digital channel demodulators for capture of (HDTV) High
Definition Television and Standard Definition Television (SDTV)
streams, as well as broadband data over terrestrial, satellite or
cable links. The CX23880 interfaces directly to the CX23490 HDTV
hardware decoder for offloading the CPU of high-level MPEG-2
decoding tasks.
Distinguishing Features
• 10-bit video decoder
• Adaptive comb filter
• Global broadcast audio decoder
• Stereo DACs
• I
2
S input and output
• DTV and broadband support
• MPEG encoder and decoder interfaces
A variety of third-party peripheral connectivity options are
supported by the CX23880/CX23881. Its General Purpose Input/
Output pins and CPU host port interface enable vendor-specific
board functionality and marketplace differentiation.
Functional Overview
The CX23880/CX23881 video and broadcast audio capture chip
is a mixed-signal monolithic ic enabling a new platform for video,
audio, and data communications in the PC. The CX23880/CX23881
chips are designed to offer higher integration, functionality and
are significantly more flexible and configurable than the previous
generation Fusion
™
878A.
CONEXANT [ CONEXANT SYSTEMS, INC ]
