M63028FP データシートの表示（PDF） - Renesas Electronics
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M63028FP Datasheet PDF : 22 Pages
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M63028/029FP
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 following
Figure.
The voltage gain [Gvo] is 12.0[V/V].
FOIN
REF
R
Ra
-
+
Ra=6R
FO-
5VCC
R
-
+
R
R
Ra
R
Ra
-
+
R
Ra
Coil
FO+
Gvo = 12 [V/V]
FO-
Output
FO+
Voltage [V]
5VCC
2
-
Coil
+
FO+
+
Coil
-
Vo
FOIN- REF (V)
Vo = [FO+] – [FO-]
=12× ( FOIN– REF)
FO-
Rev.1.0, Sep.16.2003, page 15 of 21
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