CX23880 datasheet(2/8 Pages) CONEXANT

2 / 8 page

digital

infotainment

products

PCl Audio/Video

Broadcast Decoder

CX23880/CX23881

CX23880 Overview

The CX23880 is designed to offer global support

for all analog video broadcast standards in

addition to digital broadcasts via an external channel

demodulator. It is also designed to offload the CPU

of decoding tasks for High Level MPEG-2 (HDTV),

4:2:2 de-interlacing and progressive-scan DVD via

a dedicated ViP 2 Host Port interface to the CX23490

high-level MPEG-2 Decoder.

CX23881 Overview

The CX23881 is a 100% pin-compatible and software-

compatible subset of the CX23880. It is particularly

suited to the European marketplace and therefore

does not support BTSC-dBX and EIAJ audio as

broadcast in the U.S. and Japan. In addition, the ViP

host port is not supported on the CX23881 as there is

no requirement for supporting high-level MPEG-2

decoding for digital television applications. Main

Level MPEG-2 decoding for DVB broadcast applications

is supported via a dedicated MPEG port for streaming

of compressed data streams to the host for software-

based decompression.

Both the CX23880 and CX23881 support a general

purpose host port for connection to external CODECs

for compression of analog video/audio broadcasts

that can be stored on the host’s hard disk or played

back in software.

Analog Video Capture Overview

The CX23880/CX23881 integrates a 10-bit NTSC/

PAL/SECAM composite and s-video decoder, image

resizer/scaler, Direct Memory Access (DMA) controller

and Peripheral Component Interface (PCI) bus

master on a single device. The CX23880/CX23881

can place video data directly into host memory for

video capture applications and into a target video

display frame buffer for video overlay applications.

Feature

Video A/Ds

Y/C separation

Decoded video data output

Video data input

Broadcast audio

Audio input

Audio output

MPEG data streaming

Bi-directional streaming

data ports

Power supply

Fusion 878A

8-bit

Luma Notch and Chroma Comb

Via GPIO

BTSC Mono

Mono line level or I2S port

N/A

I2S port

N/A

CX23880

10-bit

Adaptive multi-line 2-D comb filter

8- or 10-bit ITU-R 656 4:2:2 output

8-bit ITU-R 656/VIP 2.0 pixel input

BTSC dbx, NICAM, A2, EIAJ, FM

Stereo I2S port

Stereo DACs, I2S port or PCI Bus

Dedicated 80 Mbps MPEG port

Intel/Motorola host port

and VIP 2.0 host master port

3.3/1.8V

CX23881

10-bit

Adaptive multi-line 2-D comb filter

8- or 10-bit ITU-R 656 4:2:2 output

8-bit ITU-R 656/VIP 2.0 pixel input

NICAM, A2, FM

Stereo I2S port

Stereo DACs, I2S port or PCI Bus

Dedicated 80 Mbps MPEG port

Intel/Motorola host port only

3.3/1.8V

CX23880 Datasheet(PDF) 2 Page - Synaptics Incorporated.

CX23880 Datasheet(HTML) 2 Page - Synaptics Incorporated.

Html Pages

1 2 3 4 5 6 7 8

Datasheet Download

Link URL