M63021FP データシートの表示（PDF） - MITSUBISHI ELECTRIC
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M63021FP Datasheet PDF : 17 Pages
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Preliminary
MITSUBISHI SEMICONDUCTORS
M63021FP
SPINDLE MOTOR AND 5CH ACTUATOR DRIVER
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
is shown in below Figure.
The voltage gain [Gvo] is 5.0 [V/V].
FOIN
R
REF
R
5VCC
R
R
6R
FO-
R
6R
Coil
R
FO+
FO-
5VCC
2
Coil
FO+
Output
FO+
voltage [V]
+
Coil
-
Vo
FOIN – REF (V)
Gvo = 12 [v/v]
Vo=[FO+] – [FO-]
=12 x (FOIN – REF)
FO-
(11 / 17)
REV990728
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