Three Chip ICS Set Including Advanced Pre-Amplifier with Built-in Photo Detector for CD Players

In the CD system, the small disc size and subcode informations make the system very convenient, but the CD player requires more complex circuitry than analog record players. Several servo circuits are needed, such as focus servo, for example, that results in a more expensive product than conventional analog record players. The electronic circuit of the CD player is more expensive than that of the analog record player.