m63024 Mitsumi Electronics, Corp., m63024 Datasheet - Page 11

• Manufacturer Part Number: m63024
• Description: Spindle Motor And 5ch Actuator Driver
• Manufacturer: Mitsumi Electronics, Corp.

The f ocus and tracking channel is the Voltage control driv e using BTL .
The f ocus and tracking is the same composition.
The relationship between the dif f erential Voltage between FOIN and REF and the output Voltage
The Voltage gain [GVo] is 5.0 [V/V].(M63023/024FP)
The Voltage gain [GVo] is 12.0 [V/V].(M63026/027FP)
is shown in below Figure.
FOCUS / TRACKING channel
5VCC
2
FOIN
REF
R
R
Coil
5VCC
FO+
FO-
Vo
R
R
R
R
=5 or 12 X (FOIN-REF)
(
Vo=[FO+]-[FO-]
11
SPINDLE MOTOR AND 5CH ACTUATOR driveR
Ra
Ra
Ra
Ra
/
17)
Output
Voltage [V]
M63023/024/026/027FP
MITSUBISHI SEMICONDUCTORS
M63023/024FP Ra=2.5R
M63026/027FP Ra=6R
FOIN- REF (V)
GVo = 5 [V/V](M63023/024FP)
GVo = 12 [V/V](M63026/027FP)
FO-
FO+
Coil
FO-
FO+
REV010307
+
-
Coil