MIRROR CIRCUIT OF CDP

摘要

The circuit performs at a high speed the recorded data searching if there is dust or manufacturing dent on the disk. The circuit comprises; a signal detection unit monitoring the lowest and highest value of the operation amplifier (OP11); a peak detector(14) to sustain the previous value from the sample and holder; a signal comparator(16) outputting the pulse track counting number according to the result comparing the output of the filter(15) to the output of the peak amplifier unit.