m62481fp Mitsumi Electronics, Corp., m62481fp Datasheet - Page 15
![no-image](/images/manufacturer_photos/0/4/452/mitsumi_electronics__corp__sml.jpg)
m62481fp
Manufacturer Part Number
m62481fp
Description
Pickup Servo System With Automatic Adjustment
Manufacturer
Mitsumi Electronics, Corp.
Datasheet
1.M62481FP.pdf
(89 pages)
- Current page: 15 of 89
- Download datasheet (2Mb)
Test : UB is decrease starting at U
Test : same explanation as above
•MR BLOCK
(6)-1)R
When MR pulses are detected at the HFD
pin,R
R
(R0;D5(BRAKE)=1)
R
-2)fMR
D-62481-87I
R
MN
MJ
MN
MN
MN,
: in brake mode
: Mirror detector sensitivity : in normal mode
=
fMR(High) : cut off frequency of mirror detector.(R1;D13(BW WIDE)=0)
fMR(Low) : cut off frequency of mirror detector. (R1;D13(BW WIDE)=1)
(R0;D5(BRAKE)=0)
Test condition : •
is calculated as follow:
R
(High,Low);
MJ,
Test : fmod is increased. The HFO output is monitored.
U
U
f
B
A
Test : same explanation as above
MR (High,Low);
(R0;D5(BRAKE)=0)
When the MR detector stops operation, the cut off frequency is found.
fMR(Low) = fmod
B
=U
•(R0;D5(BRAKE)=0)
A
U
.
U
B
A
/BW WIDE=1;
/BW WIDE=0;
=0.3 ->
V 47
Vref
V
REF
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
U
(
MITSUBISHI
49
15
B
~
=1/2Vcc
U
ELECTRIC
=0.15V
18k
A
A= 0.5V
+
fc=500kHz AM fmod=1kHz
fc=8.0MHz AM fmod=1kHz
Vi
18k
/ 88 )
MITSUBISHI SOUND PROCESSOR LSI
48
0.001u
47
U
B
MR/HFOK
0.068u
M62481FP
43
HFOK
42
MR
0.001u
HFD MODE
t
28
Vo
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