MAX4455

19-2463; Rev 2; 3/03 KIT ATION EVALU E L B AVAILA Arbitrary Graphics On-Screen Display Video Generator General Description Features o Generates Arbitrary Graphics Images o 15-Level Gray Scale o 8 Channels of Bit-Mapped OSD o Loss-of-Signal Detector for All Channels o Graphics Updatable Within the Vertical Interval o Update Time Stamp on All Eight Channels Simultaneously o 3V and 5V Single-Supply Operation o Works with MAX4356/MAX4358 Video Crosspoint Devices and Fast Mux Switches o Small 100-Pin TQFP Package (200mm2) MAX4455 The MAX4455 is an eight-channel arbitrary graphics on-screen display (OSD) video generator that inserts arbitrary gray-scale bit-mapped graphics into eight asynchronous composite video sources. Ideal for security camera surveillance systems, the MAX4455 supports the insertion of graphics and text on up to eight video output channels in 15 levels of brightness. It easily displays information such as company logo, camera location, time, and date with arbitrary fonts and sizes. Arbitrary graphics capability enables the display of unique languages and fonts, allowing manufacturers to tailor their system for any geographic market. The MAX4455 is designed to work with Maxim’s video crosspoint switches, such as the MAX4356 and MAX4358, which include circuitry that simplifies the insertion of the OSD information. The MAX4455 can also be used with discrete fast mux switches. The MAX4455 operates from a 3V to 3.6V digital supply, and a 2.7V to 5.5V analog suppl...