General Description

The MAX7474 adaptive equalizer recovers losses incurred in the transmission of a composite video (CVBS) signal over unshielded twisted-pair (UTP) cable. The device fully recovers losses for cable lengths of up to 300m and greatly improves signal quality for cable lengths of up to 600m. The device automatically adapts to all cable lengths for CVBS signals with color burst and allows fixed-equalization settings for video signals without burst. The MAX7474 is optimized to provide compensation for losses that occur when transmitting composite video signals over UTP cables such as Category 5e. The device compensates for low frequency and chroma band losses. The MAX7474 is compatible with NTSC and PAL standards.

Features

♦ Automatically Equalizes Up to 600m

   (Fully Recovers Losses Up to 300m) of UTP Cable

   Carrying CVBS

♦ Automatic Switchover to Fixed Equalization for

   CVBS Without Color Burst

♦ Integrated Video Driver with Adjustable

   Back-Porch Clamp Level

♦ LOS and LOB Output

♦ NTSC and PAL Compatible

♦ 16-Pin SSOP Package

Applications

   Security Video Systems

   Video Switching Systems

   Home Automation