video

Sideport Video Decoders

Distinguishing Features

• Integrated NTSC/PAL/SECAM

video decoding

• Auto detection and configuration

for video

• Two 10 bit A/D

• YPbPr component video input

• Ease of Use

• 12mm X 12mm 80-pin TQFP

• 7mm X 7mm 64-pin TQFP

• CCIR 656/601/VIP

• Integrated anti-alias filter

• On-chip voltage regulator

high performance in a small package

Conexant’s broadband communications portfolio includes a comprehensive

suite of semiconductor solutions that enable the digital home and information

network. The CX25836/7 is Conexant’s fourth-generation video decoding

solution. It provides a highly integrated single-chip analog video capture

solution ideal for a wide range of digital video systems applications.

The CX25836/7 features, although applicable to a wide range of analog video

applications, are focused on both the security and consumer electronics

markets. Most notably, CX25836’s fast camera locking capabilities and flexible

programmable inputs make it most suitable for the security camera market.

The CX25837, with its ability to decode Composite Video Baseband Signal

(CVBS), S-Video, and YPbPr, is best suited to address the wide array

of consumer electronics requirements. Both devices are distinguished by high

quality, flexibility, integration, and ease of use. Both fit into a wide array of

applications: set-top-boxes, flat panel displays (such as LCD and Plasma TVs),

HDTVs, and PVRs/DVRs.

High Quality

The CX25836/7 integrates two high-performance 10-bit ADCs and provides a

full 10-bit data path through the video decoder to maintain optimum end-to-

end video quality. Eight video inputs provide flexible analog muxing that can

be configured for any of the following:

• Eight CVBS inputs

• Four Y/C inputs

• Three composite with one Y/C and one YPbPr

• One composite with two Y/C and one YPbPr

• Two composite with two YPbPr (CX25837 only)

The CX25837 uses its high quality Analog-to-Digital Converter (ADC) to

sample the YPbPr video format, which is most often found on prosumer

(intermediate to advanced end user) type equipment. Simultaneous

digitization of Pb and Pr, through the 10-bit chrominance A/D, is used to

offer this feature cost effectively yet yield the highest quality.

part number

CX25836/7

description

Sideport Video Decoder

Sideport Video Decoder

CX25836/7