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Maxim video generator allows arbitrary graphics display

Posted: 19 Jul 2002 ?? ?Print Version ?Bookmark and Share

Keywords:maxim integrated products? max4455? max4356? max4358? osd video generator?

Suited for use in security camera surveillance systems, the MAX4455 arbitrary graphics on-screen display (OSD) video generator from Maxim Integrated Products supports the overlay of graphics and text on up to eight video output channels in 15 levels of gray.

The IC also allows the display of information such as company logo, camera location, time, and date information in 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.

By integrating eight channels in a 200mm2 package, the MAX4455 simplifies system designs using high channel count. It is compatible with the company's crosspoint switches such as the MAX4356 and MAX4358, which include circuitry that simplifies the insertion of the OSD information.

The MAX4455 operates from a 3V to 3.6V digital supply, and a 2.7V to 5.5V analog supply. It is capable of interfacing to a host microprocessor and video crosspoint device that may have different digital supplies than the MAX4455's.

Each input channel incorporates its own timing extraction circuitry, allowing eight asynchronous video sources with OSD information updating in less than one field, making it available for each new frame.





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