This integrated circuit has been implemented in bipolar I2L technology, and various functions are digitally processed. Resorting to logic functions has the advantage of working with pure and accurate signals while the full benefit is drawn from the high integration of logic gates (approx. 110 gates per mm2). The main objective is to drive all functions using an accurate time base generated by a master 500kHz oscillator. Also, horizontal and vertical time bases, are obtained by binary division of reference frequency.
