m63010fp Mitsumi Electronics, Corp., m63010fp Datasheet - Page 11

• Manufacturer Part Number: m63010fp
• Description: Spindle Motor Actuator Driver
• Manufacturer: Mitsumi Electronics, Corp.

Preliminary
FOCUS / TRACKING channel
The focus and tracking channel is the voltage control drive using BTL .
The focus and tracking is the same composition.
The relationship between the differential voltage between FOIN and REF and the output voltage
The voltage gain [Gvo] is 5.0 [V/V].
The maximum range of output swing is limited around 7.5 volts,in case of VM4 is above 10 volts.
is shown in below Figure.
VM4
2
FOIN
REF
R
R
VM4
Coil
R
R
FO+
FO-
2.5R
2.5R
R
Vo
R
FO-
FO+
SPINDLE MOTOR AND 4CH ACTUATOR DRIVER
=5X (FOIN–REF)
Vo=[FO+]–[FO-]
(
11
Gvo = 5 [v/v]
Coil
/
16)
Output
voltage [V]
MITSUBISHI SEMICONDUCTORS
FOIN– REF (V)
M63010FP
FO-
FO+
REV990118
+
-
Coil