HA12220F
HA12220F is CD-ROM Drive Head Amplifier manufactured by Hitachi Semiconductor.
CD-ROM Drive Head Amplifier IC
ADE-207-230 (Z) Target Specification 1st. Edition April 1997 Functions
- RF amplifier (Built-in equalizer changing circuit)
- Focus error amplifier (fc = 60kHz Typ)
- Tracking error amplifier (Built-in cut-off frequency changing circuit fc = 30kHz, 60kHz, 100kHz, 200kHz Typ)
- FOK detection circuit (Built-in Vth changing circuit)
- Mirror detection circuit
- Defect detection circuit
- APC amplifier
- RFAGC amplifier
Features
- Built-in variable resistors (+14 to
- 16% 2% steps) for adjusting tracking error EF balance
- Built-in variable resistors (- 8 to +8dB 4dB steps) for rough adjusting tracking gain
- Built-in variable resistors (- 8 to +8dB 4dB...
