The ISL59885 video sync separator extracts sync timinginformation from both standard and non-standard videoinputs in the presence of Macrovision pulses. The ISL59885provides horizontal, vertical, and composite sync outputs aswell as SD/HDTV detection. An auto input frequency detectfeature automatically adapts to a wide range of videostandards (it does not need a different RSET resistor fordifferent frequencies). The vertical sync pulse is output onthe rising edge of the first vertical serration following thevertical pre-equalizing string. For non-standard verticalinputs, a default vertical pulse is output when the verticalsignal stays low for longer than the vertical sync defaultdelay time. The horizontal output gives horizontal timing withpre/post equalizing pulses. Fixed 70mV sync tip slicingprovides sync edge detection when the video input level isbetween 0.5VP-P and 2VP-P.The ISL59885 is available in an 8 Ld SOIC package and isspecified for operation over the full -40°C to +85°Ctemperature range.
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