17
E
A
B
C
3
4
F
M
PICK-UP
SPINDLE MOTOR
A+B+2C
CD RF
DVD RF
A+B+C+D
IC203
IC701
PLL BLOCK
FG
PLL BLOCK
DVD RF
CD RF
Motor
Hall Sensor
U
HU+
HU-
HV+
HV-
HW+
HW-
6
V
W
Speed
Monitoring
u-com
CD/DVD SERVO & DSP
CXD3030R
IC301
RF AMP
SSI3723
IC201
DVD DSP
CXD 1867R
IC401
DRIVE
BA6664FM
SPINDLE SERVO PROCESS
LEVEL SHIFT
A, B, 2C
A, B, C, D
RF
RF
A
D
C
B
MDP CD
SPDG0
SPDG1
2
4. Spindle Servo Circuit
4-1. SPINDLE SERVO PROCESS
4-2. Spindle Servo for CD/DVD
DRD-8080B consists of the three spindle control respectively.
(1) DVD x 8 : CAV (DVD Single, Dual Layer)
(2) CD x 16 (max.) : CAV (CD-DA, CD-RW(8-20 x), Video-CD(8x CLV), Host command stand-by of CD-
ROM and CD-R)
(3) CD x 40 (max.) : CAV (CD-R, CD-ROM play mode)
In the spindle speed control mode respectively.
CD x 16(Max)/CD x 40(Max) CAV drives CAV servo with PLL of RF data read and received MDP.
(Pin 12 of IC701)
DVD x 8 (Max) CAV drives CAV servo with FG signal and received MDP CD. (Pin 12 of IC701)
