m62481fp Mitsumi Electronics, Corp., m62481fp Datasheet - Page 39

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

(47)V
note(6/6)
(48)
V 27, V 22
0
V
V
Track gain adjustment mode (show to (72/88))
(R3;D7=1,D4->D6=0)
D-62481-87I
thc1,2 +
f
f
INPUT V
G
HADJ ;
LC
thc1+
thc2+
VADJ
;
Vhy
, V
, V
, V
3dB down (refer to 500Hz)
=
1,2
thc1-
thc2-
thc1,2 -
Vth -
s=Vthc
V
iE
iE
(V
Vo
,V
,V
(V
iF
Vref
hy1s
,V
hy2s
)
iF
1,2
hy1,2s
)
Vth +
;
;
CMP OFFSET=ON (Focus offset1 adjustment mode (show to (83/88))
CMP OFFSET=OFF (Focus gain adjustment mode (show to (78/88))
+ - Vthc
;
1,2
V 20
-
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
(
MITSUBISHI
V
V
39
ELECTRIC
iE
iF
/ 88 )
400K
400K
MITSUBISHI SOUND PROCESSOR LSI
55
56
400K
400K
F-E
1u
Adjustment
Track
balance1
Track
balance2
18
M62481FP
18
gain
adjustment
Track
gain1
20
20
4.7n
TE1
Vo
VREF=1/2Vcc
22
27
D
D
OUT1
OUT2
Vo
Vo