m62481fp Mitsumi Electronics, Corp., m62481fp Datasheet - Page 66

• Manufacturer Part Number: m62481fp
• Description: Pickup Servo System With Automatic Adjustment
• Manufacturer: Mitsumi Electronics, Corp.

JP1/SG
COMP IN
II
MCU. All adjustment signals ( Focus offset method 1.2 , Track offsert method 1.2, Focus balance ,
Track balance , Focus gain and Track gain ) are aviable at CLPF pin .
TS OUT
FS OUT
D-62481-87I
I
) No capacitor at CLPF pin, MCU A/D convertor at CLPF pin. All adjustment are done via A/D in
) All adjustment are done via internal Adj Comp.
*1) The IC is protected , if more than one of the switches (ADJ GAIN,ADJ TBAL,
( Note ) Resistors and Capacitors without value are externals.
14
44
29
24
TBAL,ADJ TO2,ADJ FO2,ADJ TO1,ADJ FO1,ADJ FBAL are closed at the same time.
It is not a resonable and specified adjustment mode,if more than one of the switches ADJ GAIN,ADJ
ADJ TO2,ADJ FO2,ADJ TO1,ADJ FO1,ADJ FBAL FG RET or TG RET)
are closed at the same time.
TC DET LPF SW
FE1 output
(Internal)
Track Kick
Block
TE1 output
(Internal)
A-B output
(Internal)
F-E output
(Internal)
Adjustment Block
JP1 Input
Circuit
Track Cross
Detector Block
47p
JP1H(Internal)
47p
U
FG RET
A
TG RET
FZC Shock
Block
TG SIG
FG SIG
ADJ FBAL
ADJ TO2
ADJ FO2
ADJ TO1
ADJ TBAL
ADJ FO1
220k
230k
270k
220k
47p
TE1-IN
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
(
MITSUBISHI
65
2 37
ELECTRIC
/ 88 )
FE1-IN
MITSUBISHI SOUND PROCESSOR LSI
XOR
18
470
*1)
CLPF
CMP
OFFSET
DETFIL
68k
3k
I
)
20
100k
68k
Switches
comparator
input is selected by
ADJ-FBAL Switch
control signal
ADJ-FBAL Switch
ADJ-FBAL Switch
M62481FP
2
1
OPEN
CLOSE
6.8k
2.2k
330k
Switched Adj.Com.
V
REF
=1/2Vcc
Active
II
Not
Active
Switching
Comparetor
Input
1
)
A/D
Dout
Logic
Active
Not
Active
MCU
2