CXD3018Q/R
§5. Description of Servo Signal Processing System Functions and Commands
§5-1. General Description of Servo Signal Processing System (VDD: Supply voltage)
Focus servo
Sampling rate:
Input range:
Output format:
Other:
88.2kHz (when MCK = 128Fs)
1/4VDD to 3/4VDD
7-bit PWM
Offset cancel
Focus bias adjustment
Focus search
Gain-down function
Defect countermeasure
Auto gain control
Tracking servo
Sampling rate:
Input range:
Output format:
Other:
88.2kHz (when MCK = 128Fs)
1/4VDD to 3/4VDD
7-bit PWM
Offset cancel
E:F balance adjustment
Track jump
Gain-up function
Defect countermeasure
Drive cancel
Auto gain control
Vibration countermeasure
Sled servo
Sampling rate:
Input range:
Output format:
Other:
345Hz (when MCK = 128Fs)
1/4VDD to 3/4VDD
7-bit PWM
Sled move
FOK, MIRR, DFCT signal generation
RF signal sampling rate: 1.4MHz (when MCK = 128Fs)
Input range:
Other:
1/4VDD to 3/4VDD
RF zero level automatic measurement
– 86 –
ETC [ ETC ]
