MULTIPLEXER CONTROL PULSE GENERATING CIRCUIT FOR THE CORRECTION CIRCUIT OF TIME AXIS

摘要

The pulse generator controlling the multiplexer of the timeaxis compensator in the digital audio system comprises a D flipflop (FF1) maintaining the output to high state when a master reset pulse (7) is generated, AND gates (N1-3) generating a reset pulse (5) with some delay when the first frame synch. signal (3) is entered, a counter (T) counting the clock pulse of 31.25 KHz and a JK flip-flop (FF2) providing a multiplexer control pulse (7) after receiving the output of an AND gate (N4) as a clock signal.