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For Information Equipment MN662744CDE Signal Processing LSI for CD–ROM Drives Overview The MN662744CDE is a CD–ROM signal processing LSI that, on a single chip, combines optics servos for the CD–ROM driver (focus, tracking, and traverse servos), digital signal processing (EFM demodulation and error correction), digital servo processing for the spindle motor, digital filter, and D/A converter, so thus covers all signal processing functions from the head's RF amplifier onward. Features Optics servo • Software attenuation (256 levels) • Focus, tracking, and traverse servos • Digital audio interface (EIAJ format) • Automatic adjustment functions for FO/TR gain, • Audio data serial interface for input and FO/TR offset, and FO/TR balance output • Built-in D/A converter for driv