• 10-bit video decoder

• Adaptive comb filter

• Global broadcast audio decoder

• Stereo DACs

• DTV and broadband support

• MPEG encoder and decoder interfaces

digital

infotainment

products

PCl Audio/Video

Broadcast Decoder

CX23880/CX23881

Distinguishing Features

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.

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.