HA12188AF
HA12188AF is Pre-Amplifier Servo manufactured by Hitachi Semiconductor.
Description
The typical values of built-in capacitances in this IC are reduced 10% pared with those in IC HA12188F. The values of Electrical Characteristics of this IC are same as those of IC HA12188F.
Functions
- RF amplifier
- Focus error amplifier
- Tracking error amplifier
- FOK detector
- Mirror detector
- Defect detector
- APC amplifier
- Focus, tracking, and sled servo control
- Inner/outer direction detector
Features
- Built-in variable resistors for adjusting tracking error EF balance, tracking gain, and focus gain
- Single power supply
- Supports double and quadruple speeds
- Few external ponents
- FP-56 package
Block Diagram
VCC 42
41 RS2
33 Mirror
31 30 29 Defect
RS1 RFS
- +
Bias
- +
28 LDS 27 CLK 26 DATA
43 RF2 44...
