4-2-2. Wobble CLV Servo
CD-R : 4x, 8x, 16x, 24x, 32x, 40x, 48x
/CD-RW : 4x, 10x, 16x, 24x, 32x
/DVD-R : 2x, 4x, 8x, 16x(PCAV)
/DVD-R DL : 2x, 4x
/DVD-RW : 1x, 2x, 4x, 6x
/DVD+R : 2.4x, 4x, 8x, 12x, 16x(PCAV)
/DVD+R DL : 2.4x, 4x, 6x
/DVD-RAM : 2x, 3x, 3-5x(PCAV)
/DVD+RW : 2.4x, 4x, 8x
When drive write DVD-RAM/R/RW/+R/+RW/CD-R/CD-RW, the spindle motor is controlled using Wobble CLV
Spindle Servo.
The WOBSIG signal(R2S35002 37pin) input to DSP IC(R8J32007 154pin). The DSP Controller in R8J32007
uses WOBSIG as linear velocity feed back, therefore the Wobble CLV Spindle Servo doesn’t work well when
WOBSIG signal is abnormal.
The spindle controller PWM output signal SPD (R8J32007 211pin) input to SPIN in Drive IC(R2S30202FP 1pin)
after Low-Pass Filtering.
The PWM output signal U,V, W signal(R2S30202FP 12, 13, 14pin) drives Spindle Motor without using a sensor.
