Special Circuit Descriptions
Samsung Electronics 5-7
5-2-3 Sled Servo Block
5-2-4 Spindle Servo Block
The 20K½ resistor and 0.33µF capacitor form the 200Hz low pass filter, and the carrier component of spindle
servo error signals is eliminated. In CLV-S mode, SMEF becomes ÒLÓ and pin 25 low pass filter fc lowers,
strenthening the filter further. The characteristics of high frequency phase compensation in focus tracking
servo and the characteristics of cut off frequecny in CLV low pass filter are test by FSET pin.
The moving of pick-up is controlled by tracking servo output through low pass filter.
The sled kick voltage is output for track jump operation.
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