VG22G1 - Data Multiplex Signal Generator

The VG22G1 is an NTSC system data MPX signal generator conforming to teletext and inter-text broadcasting systems employed in Japan. Teletext and inter-text MPX signals generated in the VG22G1 is superimposed on horizontal blanking period of the composite video signal which is input from the external signal source, and the resultant signals are output from this main frame.