Monolithic Video Sync Separators

The GS1881 GS4881 and GS4981 are general purpose sync separators for use in a wide variety of Video applications. The devices extract the Timing information from composite Video signals with scan rates from 15 to 130 kHz. The GS1881 is a drop-in replacement for the industry standard LM1881 with much improved performance. The device generates composite sync, vertical sync, back porch and odd/even field signals. The GS4881 is identical to the GS1881 but features a noise immune back porch pulse which maintains a constant H rate during the vertical interval. The GS4981 is identical to the GS4881 except that it provides horizontal sync in place of the odd/even output. By Gennum Corporation