DAVID HUISMAN WROTE ===================================== >Hi, > >I want to mix 2 composite vidoe signals together using a vidoe op-amp. > >Does the sync info from 1 of these 2 sources need removing before mixing ? > >Also, can someone recommend an IC that provides V and H sync directly from >Composite source. ================================== National has a good video sync separator : LM1881 See: http://www.national.com/pf/LM/LM1881.html Regards, Gerard Mantoux