Experimental sync separator and associated circuitry in integrated form

An experimental integrated circuit that performs the functions of sync separation, noise inversion, and AGC amplification was designed and fabricated. The IC uses p-channel enhancement-type MOS units as active transistors, diodes, and resistors. The threshold voltages permit the design of voltage-regulator circuits for the reference levels in the various signal-processing stages. The results of a test of the IC in combination with a commercial TV receiver are described.