Mitsubishi M62481FP Datasheet
ELECTRIC
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
( / 88 )
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
D-62481-87I
1
DESCRIPTION
FEATURES
•Built-in self-reset circuit
System Block Diagram
Pick-Up
HF PRE AMP
TE PRE AMP
ADJ
TRK Servo
Sled Servo
DSP
DRIVER
FCS Servo
HF signal
56P6S
(10.0mmX10.0mmX2.8mm)
The M62481FP is an optical pick-up servo system IC for a CD player.It has
amplifiers,swiches,comparators and logic controller for servo control of an optical pick-up.
Furthermore,it has automatic adjustment system controlled by micro -controller.
Many built-in functions and the 56pin shrink quard package realize the compact and moderate CD
player with high performance.
•8 times speed
•3 beam pick-up servo system
•Adaptable to hologram pick-up system with
additional input.
•Built-in automatic laser power control circuit
•Built-in mirror detector
•Built-in adjustment circuit for automatic tuning
•Built-in serial data command interface to reduce
micro-controller overload
APPLICATION
CD PLAYER,CD-ROM PLAYER
RECOMMENDED OPERATION CONDITIONS
•Supply Voltage Range •••••• 4.5 -> 5.5V
•Rated Supply Voltage ••••••5.0V
M62481FP
PD
FE PRE AMP
LD
ALPC
TRK
Actuator
Sled
Motor
FCS
Actuator
Spindle
Motor
M5674X
ADJ
0.65mm pitch 56pin QFP
MCU I/F
MCU
Search
M6582X
MITSUBISHI
ELECTRIC
MITSUBISHI SOUND PROCESSOR LSI
( / 88 )
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
D-62481-87I
PIN CONFIGURATION
(top view)
2
APC IN
APC OUT
FE2 + IN
FS - IN
FE1 - IN
CFSR
FG2
TE2 + IN
TG1
TG3
TE1
Vcc
TE2 - IN
TE2 OUT
M62481FP
4344454647484950515253545556
OST
TE1 - IN
SHOCK IN
RIREF
TG2
TS - IN
TS OUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
42
41
40
39
38
37
36
35
34
33
32
31
30
29
HFC
OSF
FE1
FG1
FE2 - IN
FE2 OUT
FS OUT
15 16 17 18 19 20 21 22 23 24 25 26 27 28
MITSUBISHI
ELECTRIC
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
( / 88 )
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
D-62481-87I
BLOCK DIAGRAM
3
HFC
OSF
FE1
FS OUT
FG1
FE2 OUT
FE2 - IN
TE2 + IN
TG1
TG3
TE1
Vcc
TE2 - IN
TE2 OUT
47k
47k
FS ON
47k
56k
TE1
TE2
offset
gain1
Track balance1
Track balance2
JF
JR
TS
FS
TS OFF
F-E
FBAL
APC
A-BHFFG2
SF
SR SSTrack
gain1
400k
30k
30k
FE2
FS OFF
TC
Shock
SS BUF
SS OFF
400k
60k
60k
30k
10k
10k
5.0k
30k
30k
balance1
balance2
2k
220k
22k
22k2k220k
10k
Focus gain2
Track
gain2
18k
18k291k
1k
4344454647484950515253545556
OST
TE1 - IN
SHOCK IN
RIREF
TG2
TS - IN
TS OUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TS
HOLD
FZC OFF
TG1
TG2
TG3
42
41
40
39
38
37
APC IN
APC OUT
CFSR
FE1 - IN
MR/HFOK
Focus
TS
ON
FE1
Focus
36
Focus
Focus
FS HOLD
35
FE2 + IN
34
FG1
33
32
VREF
Reset
31
30
FG2
FS - IN
15 16 17 18 19 20 21 22 23 24 25 26 27 28
Unit Resistance :Ω
MITSUBISHI
ELECTRIC
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
( / 88 )
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
D-62481-87I
PIN DESCRIPTION
PIN No.
8
346
7
SHOCK IN
1
4
18k
6k322k
10k
2.2k
2
Symbol
OST
TE1 -IN
TE1
TE2 +IN
Equivalent circuit
1
2
4
220k
Function
Voltage output for Track offset
adjustment
TE1 Amp negative input
TE1 Amp output
TE2 Amp positive input
5
TG1
TE2 -IN
TE2 OUT
5
6
8
1k
1k
7
MITSUBISHI
TG1 SW
TE2 Amp positive input
TE2 Amp output
Shock detector input
ELECTRIC
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
( / 88 )
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
D-62481-87I
9101112131415
PIN No.
5
9
10k
10k
10k
Symbol
RIREF
Vcc
TG2
TG3
Equivalent circuit Function
Current reference
Power supply
TG2 SW
TG3 SW
11
12
10
1k
1k
1k
10k
1k
16
TS - IN
TS OUT
SS + IN
SS - IN
13
15
14
16
MITSUBISHI
TS Amp negative input
TS Amp output
SS Amp positive input
SS Amp negative input
ELECTRIC
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
( / 88 )
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
D-62481-87I
17181920212223
21
adjustment)
24
17
6
20k
18
220k
20k
20
470
68k
PIN No.
Symbol
SS OUT
DETFIL
VREF
CLPF
Equivalent circuit
47p
19
Function
SS Amp output
Filter for Phase Detector
(Gain adjustment)
Vcc/2 Amp output
LPF Capacitor for adjutment
3.0k
24
GND
DOUT1
MLA/DIS
JP1/SG
23
10k
4.7k
4.7k
22
MITSUBISHI
Ground
Servo status Data output1
MCU Latch Signal input
(discharge control for LPF Capacitor of
Single Track Jump Control
(reference signal input for Gain
adjustment)
ELECTRIC
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
( / 88 )
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
D-62481-87I
25262728293031
PIN No.
25
26
29
31
32
10k
7
20k
20k
27
10k
Symbol
MCK
MSD
DOUT2
HFD
Equivalent circuit
4.7k
4.7k
28
Function
MCU clock signal input
MCU serial Data input
Servo status Data output2
HF Detect output
32
FS OUT
FS - IN
FG2
FE2 OUT
30
1k
10k
1k
MITSUBISHI
FS Amp output
FS Amp negative input
FG2 SW
FE2 Amp output
ELECTRIC
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
( / 88 )
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
D-62481-87I
33343536373839
PIN No.
38
8
100
34
220k3318k
22k
6k
36
Symbol
FE2 - IN
FG1
FE2 + IN
FE1
Equivalent circuit
35
1k
1k
Function
FE2 Amp negative input
FG1 SW
10k
FE2 Amp positive input
FE1 Amp output
40
37
FE1 - IN FE1 Amp negative input
Voltage output for Focus offset
OSF
CFSR
APC OUT
39
40
adjustment
Voltage for Focus Search
APC(Automatic Laser Power
Control)output
MITSUBISHI
ELECTRIC
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
( / 88 )
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
D-62481-87I
41424344454647
PIN No.
45
9
44
5.1k42100k
Symbol
APC IN
HFC
MRC
COMP IN
Equivalent circuit Function
41
APC(Automatic Laser Power
Control)input
HF Capacitor for HF Detector
4.7k
Hold Capacitor for Mirror Detector
43
Comp Amp input
48
FBO
FBI
MR IN
HF OUT
46
47
Focus Balance Amp output
Focus Balance Amp input
Input of Mirror detector
51k
48
HF Amp output
51k
MITSUBISHI
ELECTRIC
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
( / 88 )
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
D-62481-87I
49505152535455
54
53
52
55
56
49
PIN No.
10
10k
60k
30k
400k
Symbol
HF - IN
GND
AB
Equivalent circuit
5k
50
10k
51
Function
HF Amp negative input
Ground
A,B output
C IN HF input C for Auxiliary
56
B IN
A IN
E IN
F IN
Focus Servo input B
Focus Servo input A
60k
Track Servo input E
Track Servo input F
400k
MITSUBISHI
ELECTRIC
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
( / 88 )
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
D-62481-87I
1000
600
20000255075100
360
85
Vcc -> 0.7
Vcc->0.3
11
Pin 23 ,Pin 24 ,
ABUSOLUTE MAXIMAUM RATING
Symbol Parameter
Vcc
VI
Pd
KO
Topr
Tstg
Maximum Supply Voltage
Input Voltage
Power Dissipation
Thermal Derating
Operating Temparature
Storage Temparature
THERMAL DERATING
(MAXIMUM RATING)
900
800
Conditions
Ta = 25deg.
Ta=25deg.,unless otherwise noted
Ratings
Unit
7
-0.3 -> Vcc+0.3
900
9.0
mW
mW/deg.
-20 -> +85
-40 -> +125
V
V
deg.
deg.
400
AMBIENT TEMPERATURE Ta (deg.)
RECOMMENDED OPERATING CONDITION
Symbol Parameter
Vcc
VIH
fck
Supply Voltage
High-level Input Voltage
Low-level Input VoltageVIL
Clock frequency
Pin 25 ,Pin 26
Conditions
125
Limits
Min
4.5 V
Typ Max
5.0
5.5
Unit
Vcc
0
500
kHz
V
V
MITSUBISHI
MITSUBISHI SOUND PROCESSOR LSI
D-62481-87I
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
ELECTRICAL CHARACTERISTICS(1/6)
(Ta=25deg.,Vcc=5V,f=1kHz,DCBA=1000,unless otherwise noted)
No
1
Symbol
Icc
Block
Parameter
Circuit current
Test Conditions
Quiescent
M62481FP
Measurement
circuit
Limit
Min Typ Max
5530
70
Unit
mA
2
3-1
3-2
4-1
4-2
5
6
7
8
9
10-1
10-2
VREF
GVHFAB
GVHFC
fHF1
fHF2 HF Cut off frequency2
VHHF
VLHF
IOHHF
IOLHF
VOSHF
RMN-ON
RMN-OFF
IV
+
HF
Reference voltage
Gain for Input A/B
Gain for Input C
HF Cut off frequency1
High output voltage
Low output voltage
Low output current
Offset voltage
Ratio(nomal)
Ratio(nomal)
f=500kHz
f=500kHz
(normal) 3dB down refer to 500kHz
(Invert) 3dB down refer to 500kHz
INPUT Vin= 4.0V
INPUT Vin= 1.0V
VOH=4.0V
VOL=1.0V
refer to VREF
"Normal"Mode: R0;D5=0
"Normal"Mode: R0;D5=0
2.3 2.5 2.7
3.1
(1)
9.1
(2)
(1)
12.0 16.0
(3)
12.0 16.0
3.5 4.0
(4)-1
(4)-1
(4)-2
(4)-2
(5)
(6)-1
0.31 0.41 0.51
(6)-1
0.37 0.47 0.57
5.1 7.1
11.1 13.1
1.0 1.5
-2
-1
21
0
50-50
V
dB
dB
MHz
MHz
V
V
mAHigh output current
mA
mV
10-3
RMN-HYS
11-1
RMJ-ON
11-2
RMJ-OFF
11-3
RMJ-HYS
12-1
12-2 fMRH Cut off frequency (High)
13
14
15
16
17
18
19
20
21
fMRL
VTHFOK
VHHFD
VHDOUT
VLHFD
VLDOUT
IOHHFD
IOHDOUT
IOLHFD
IOLDOUT
MR
HFOK
HFD/
DOUT1,2
Hysteresis(normal)
Ratio(jump)
Ratio(jump)
Hysteresis(jump)
Cut off frequency (Low)
Threshold refer to VREF
High output voltage
Low output voltage
High output current
Low output current
"Normal"Mode: R0;D5=0
"Brake"Mode : R0;D5=1
"Brake"Mode : R0;D5=1
"Brake"Mode : R0;D5=1
"Normal"Mode: R0;D5=0 , R1;D13=1
"Normal"Mode: R0;D5=0 , R1;D13=0 60 100
VOH=4.0V
VOL=1.0V
MITSUBISHI
ELECTRIC
( / 88 )
12
(6)-1
0.03 0.06 0.12
(6)-1
0.42 0.52 0.62
(6)-1
0.48 0.58 0.68
0.04 0.08 0.16
(6)-1
(6)-2
30 50
(6)-2
(7)
- 0.26 - 0.12
(7)
3.5
(7)
(8)
(8)
- 0.19
4.0
-100
1000500
1.51.0
-70
kHz
V
V
V
uA
uA
D-62481-87I
note(1/6)
~
~
•IV+HF BLOCK
~
~
~
(1)GVHFAB,fHF1;
Input signal ViA (ViB)
ViA(ViB)
Vref
0.5Vp-p
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
Vref+0.25V
ViA ViB
54 53 52 51
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
Vref+0.25V
18k
60k60k
49 48
Vo
(2)GVHFC;
Input signal ViC
ViC
Vref
0.5Vp-p
t
60k60k 30k
10k
10k
Vref+0.25V
54 53 52
5k
ViC
30k
51
t
60k60k 30k
10k
10k
5k
HF
+
18k
49 48
HF
+
Vo
(3)fHF2;
ViA(ViB)
Vref
VREF=1/2Vcc
Input signal ViA (ViB)
0.5Vp-p
Vo
Vref-0.25VVref-0.25V
ViA ViB
60k60k
t
54 53 52
60k60k
10k
10k
10k
51
30k
5k
10k
49 48
HF
+
MITSUBISHI
ELECTRIC
( / 88 )
13
MITSUBISHI SOUND PROCESSOR LSI
D-62481-87I
M62481FP
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
(4)-1VHHF,VLHF;
INPUT ViA(ViB)
VHHF:ViA(ViB)=4.0V
VLHF:ViA(ViB)=1.0V
(4)-2VHHF,VLHF;
INPUT ViA(ViB)
IOHHF:VO=4.0V
IOLHF:VO=1.0V
ViA ViB
60k60k
54 53 52 51
60k60k 30k
10K
10K
ViA ViB
60k60k
54 53 52 51
60k60k 30k
5K
18k
49 48
HF
+
18k
49 48
HF
+
Vo
4.7k
Vo
(5)VOSHF;
VREF=1/2Vcc
Vref
10K
10K
60k60k
54 53 52 51
60k60k 30k
10k
10k
19
+
47k
47k
5K
Vo
18k
49 48
HF
+
5k
MITSUBISHI
ELECTRIC
( / 88 )
14
D-62481-87I
•MR BLOCK
(6)-1)RMN,RMJ,fMR (High,Low);
RMN : Mirror detector sensitivity : in normal mode
(R0;D5(BRAKE)=0)
Test : UB is decrease starting at UB=UA.
When MR pulses are detected at the HFD
pin,RMN is calculated as follow:
RMN=
UB
UA
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
~
Vi
18k
0.001u
18k
0.068u
0.001u
RMJ : in brake mode
(R0;D5(BRAKE)=1)
Test : same explanation as above
-2)fMR (High,Low);
VREF=1/2Vcc
V 47
Vref
/BW WIDE=1;
/BW WIDE=0;
49 48
+
UA
47 43 42
MR/HFOK
UB
fc=500kHz AM fmod=1kHz
fc=8.0MHz AM fmod=1kHz
A= 0.5V
HFOK
MR
HFD MODE
t
28
Vo
fMR(Low) : cut off frequency of mirror detector. (R1;D13(BW WIDE)=1)
UB
Test condition : •
UA
=0.3 ->
UB=0.15V
•(R0;D5(BRAKE)=0)
Test : fmod is increased. The HFO output is monitored.
When the MR detector stops operation, the cut off frequency is found.
fMR(Low) = fmod
fMR(High) : cut off frequency of mirror detector.(R1;D13(BW WIDE)=0)
(R0;D5(BRAKE)=0)
Test : same explanation as above
MITSUBISHI
ELECTRIC
( / 88 )
15
D-62481-87I
(7)VTHHFOK,VHHFD,VLHFD;
VTHHFOK:
When input voltage Vin increase
starting from Vref,
Vo change form "L" to "H" and pin
48 measure voltage( refer to Vref).
Vin
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
18k
18k
0.068u
0.001u
(8)IOHHFD,IOLHFD;
VO =4.0V : IOHHFD
VO =1.0V : IOLHFD
Vin
49 48
+
VREF=1/2Vcc
18k
18k
47 43 42
MR/HFOK
HFOK
MR
HFD MODE
(RL=Nothing)
28
Vo
VHHFD
VLHFD
49 48
+
VREF=1/2Vcc
0.068u
47 43 42
MR/HFOK
MITSUBISHI
ELECTRIC
( / 88 )
16
HFOK
MR
0.001u
HFD MODE
28
VREF=1/2Vcc
Vo
IOH (IOL)
MITSUBISHI SOUND PROCESSOR LSI
D-62481-87I
(13)-1
(13)-1
(13)-2
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
ELECTRICAL CHARACTERISTICS(2/6)
(Ta=25deg.,Vcc=5V,f=1kHz,DCBA=1000,unless otherwise noted)
Symbol
Block
Parameter Test Conditions
M62481FP
Measurement
circuit
Limit
Min Typ Max
Unit
GVFE Gain
22
23
VHFE2
VLFE2 V
24
25
IOHFE2
26
IOLFE2
VOSFE2
27
IV
+
FE
28
VOSFE1adj Offset voltage
29
30
BALFE
GVFS Gain
31
32
VHFS
VLFS
33
High output voltage
Low output voltage
High output current
Low output current
Offset voltage
Offset voltageVOSFE1
Focus balance
Low output voltage
Gain value DCBA=1000(0dB)
INPUT Vin= 4.0V
INPUT Vin= 1.0V
INPUT Vo= 4.0V
INPUT Vo= 1.0V
refer to VREF,
refer to VREF,
R2;DCBA=1000(0%)
INPUT Vin= 1.0V
INPUT Vin= 4.5V
Focus gain : 0dB
Focus balance : 0%
Focus gain : 0dB
Focus balance : 0%
Focus gain : -11 -> 9.8dB
Focus balance : 0%
(10)
(11)
3.5 4.0
(11)
(12)
(12)
1
(10)
-2 0 +2
(14)
(15)
3.5 4.0
(15)
14.012.0 16.0
1.0 1.5
-2 -1
2
0
0
1.0 1.5
dB
V
mA
mA
40-40
mV
mV0refer to VREF, 15-15
mV
15-15
%
dB0-2.0 2.0
VHigh output voltage
V
+
+
-
FS
Focus
Search
FZC
FG
High output current
Low output currentIOLFS
Offset voltage
Focus search + voltage
Focus search - voltage
Focus zero cross1 + voltage
(Shock detector)
Focus zero cross1 - voltage
(Shock detector)
Focus zero cross2 + voltage
Focus zero cross2 - voltage
Attenuation FG1,2 ON
Attenuation FG1,2 OFF
INPUT V0= 4.0V
INPUT V0= 1.0V
refer to VREF
refer to VREF
refer to VREF
"Shock or FZC"mode refer to VREF
"Shock or FZC"mode refer to VREF
refer to VREF
refer to VREF
"FG1 SW=FG2 SW=ON", RL=2kohm
"FG1 SW=FG2 SW=OFF"
MITSUBISHI
ELECTRIC
( / 88 )
17
( max )
( min )
IOHFS -6.0
34
35
36
VOSFS
37
VFSR +
VFSR -
38
39
VFZC1
40
VFZC1
VFZC2
41
42
VFZC2
AFG1§2ON
43
AFG1§2OFF
44
(16)
(16)
(17)
(18)
(18)
(19)-1
(19)-1
(19)-2
(19)-2
(20)
(20)
-4.0
4.0
6.0
-25 25
1.45
0.07 0.12 0.17
0.5 0.7 0.9
15
0
1.67
-1.59
0 2
-1.40
-0.07-0.12-0.17
-0.5-0.7-0.9
20
mA
mA
mV
V
V
V
V
V
V
dB
dB
D-62481-87I
(10)GVFE,BALFE;
•IV + FE BLOCK
0
note(2/6)
INPUT ViA(ViB)
ViA
54 53
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
~ ~
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
1/2Vcc1/2Vcc
ViB
60k60k
GVFE:input A only.Output voltage is at Pin 32
BALFE=GVFE(A•B) / GVFEB
GVFE(A•B);Equal phase signals input to
pin 54 and 53 .
ViA(ViB)
Vref
(11)VHFE2,VLFE2;
INPUT ViA(ViB)
Vi=50mVrms
t
Focus
balance1
60k
ViB
54 53
60k
30k30k
A-B
Focus
gain1
60k
FS OFF
Focus
balance2
FE1
1k
22k
2k
220k
FS ON
FE2
18k
FS HOLD
Focus
gain2
37
36
35
33
32
VREF=1/2Vcc
27k
47k
240k
Vo
VHFE2:Vi=4.0V
VLFE2:Vi=1.0V
Focus
balance1
60k60k
Focus
balance2
30k30k
A-B
Focus
gain1
FS OFF
MITSUBISHI
ELECTRIC
( / 88 )
18
1k
22k
2k
220k
FS ON
FE2
18k
FS HOLD
Focus
gain2
37
27kFE1
36
35
47k
33
240k
32
Vo
4.7k
D-62481-87I
(12)IOHFE2,IOLFE2;
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
INPUT ViA(ViB)
IOHFE2:Vo=4.0V
IOLFE2:Vo=1.0V
Focus
balance1
ViB
54 53
60k
30k30k
A-B
Focus
gain1
60k60k
FS OFF
Focus
balance2
1k
22k
2k
220k
FS ON
FE2
18k
FS HOLD
Focus
gain2
37
36
35
33
32
27kFE1
47k
240k
Vo
IOH (IOL)
(13)-1VOSFE1,VOSFE2
19
Focus
balance1
+
VREF
54 53
60k
47k
47k
60k60k
30k30k
A-B
Focus
gain1
60k
Focus
balance2
FS OFF
FE1
1k
22k
2k
220k
FS ON
FE2
18k
FS HOLD
Focus
gain2
VREF=1/2Vcc
37
36
35
33
32
27k
VOSFE1
47k
240k
VOSFE2
MITSUBISHI
ELECTRIC
( / 88 )
19
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
D-62481-87I
(13)-2 VOSFE1adj
1
. Focus gain ( R3;D0->3=1 ( 9.8dB ) Measurement circuit (13)-1
VosFE1: within +/- 50mV
2
. Focus gain ( R3;D0->3=1 ( 9.8dB ) Measurement circuit (13)-2
Input pin54 add Va( Offet voltage )
VosFE1adj is within +/- 15mV by adjusting Va.
3
. Focus gain ( -11->9.8dB ) Measurement circuit (13)-2
VosFE1adj( pin35) : mesurement
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
100k
60k60k
54 53
60k60k
Focus
balance1
30k30k
Focus
balance2
19
+
VREF
47k
47k
A-B
Focus
gain1
FS OFF
FE1
1k
22k
2k
FS ON
18k
220k
FE2
1.2M
Focus
offset
FS HOLD
Focus
gain2
220k
38
37
36
35
33
32
27k
VOSFE1adj
47k
240k
VOSFE2
MITSUBISHI
ELECTRIC
( / 88 )
20
VREF=1/2Vcc
D-62481-87I
•FS BLOCK
0
(14)GVFS:input pin 30
GVFS=Vo / Vi
Vi
Vi=10mVrms
Vref
(15)VHFS,VLFS;
INPUT Vi
VHFS:Vi=1.0V
VLFS:Vi=4.0V
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
;
30
27k
Vo
47k
47k
FS
+
VREF
29
19
t
30
27k
Vo
47k
47k
FS
+
29
19
VREF
27k
1.0k
27k
1.0k
Vi
~
Vi
(16)IOHFS,VILFS;
INPUT Vi
IOHFS:Vo=4.0V
IOLFS:Vo=1.0V
(17)VOSFS;
(18)VFSR + ,VFSR - ;
VFSR + (R1:D8=0,D9->D12=1)
VFSR - (R1:D8=1,D9->D12=1)
47k
47k
47k
47k
Focus
Search
FS
+
FS
+
VREF
VREF
30
29
19
30
29
19
39
CFSR
Vi
27k
27k
Vo
IOH (IOL)
27k
27k
1k
Vo
Vo
VREF=1/2Vcc
MITSUBISHI
ELECTRIC
21
( / 88 )
D-62481-87I
(19).FZC BLOCK
Buffer
Buffer
Focus
balance2
Focus
balance1
Focus
gain3
(offset)
Focus
gain2
1k
FZC OFF
FZC OFF
HFOK
FE1-INAC
ViA
HF-IN
HFOUT
FE1
MRIN
HFC
DOUT1
SHOCK IN
FE2+IN
B
100k
47p
220k
FS ON
FS HOLD
100k
ON/OFF
ViA
HF
60k
30k
HF
ON/OFF
53
54
52
60k
60k
30k
47k
12p 36p
BW WIDE
47k
12p 36p
BW WIDE
5k
49 48 47
18k
30k
30k
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
27k
37 36
Focus
gain1
A-B
(Vth=+/-0.7V)
HFOK
Detector
42
0.01u
0.001u
FE1
18k
FZC/Shock
Logic
K200G800
(Vth=+/-0.12V)
Dout
Logic
35
8
22
VREF=1/2Vcc
Measure
Vpin35
Vpin8
DOUT1
(19)-1.VFZC1 + ,VFZC1 - (K200);
1.Set R0,D7 (FZC OFF)=1.
2.Set pin 24 (JP1/SG) to "H".
3.Apply HF signal to pin 52 (C input).
4.R0,D11=R0,D10 (Dout Mode)=0.
5.Apply Vref to pin 8 (Shock in).
6.Increase voltage at pin 8 and monitor the DOUT1 pin.
7.When the voltage at the DOUT1 pin changes,the threshold is found.
8.Threshold voltage can be calculated as follows;
VFZC1 + =Vpin8 - Vref
9.Apply Vref to pin 8 (Shock in).
10.Decrease voltage at pin 8 and monitor the DOUT1 pin.
11.When the voltage at the DOUT1 pin changes,the threshold is found.
12.Threshold voltage can be calculated as follows;
VFZC1 - =Vpin8 - Vref
MITSUBISHI
ELECTRIC
22
( / 88 )
MITSUBISHI SOUND PROCESSOR LSI
D-62481-87I
47k
2k
VoViVREF=1/2Vcc
FG2
23
M62481FP
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
(19)-2.VFZC2 + ,VFZC2 - (G800);
1.Set R0,D7 (FZC OFF)=1.
2.Apply a voltage to pin8 (shock in) which is much above the comparetors threshold.
3.Set pin 24 (JP1/SG) to "H"
4.R0,D11=R0,D10 (Dout Mode)=0.
5.Apply Vref and no HF signal to pin 52 (C input).
6.Apply HF signal to pin 52 (C input).
7.Adjust ViA to Vref (=input to pin 53 (A input) via 60kohm resister).
8.Increase voltage at pin 53 and monitor the DOUT1 pin.
9.When the voltage at the DOUT1 pin changes,the threshold is found.
10.Threshold voltage can be monitored at pin35 (FE2+IN) and calculated as follows;
VFZC2 + =Vpin34 - Vref
11.Apply Vref and no HF signal to pin 52 (C input).
12.Apply HF signal to pin 52 (C input).
13.Adjust ViA to Vref (=input to pin 54 (A input) via 60kohm resister).
14.Decrease voltage at pin 54 and monitor the DOUT1 pin.
15.When the voltage at the DOUT1 pin changes,the threshold is found.
16.Threshold voltage can be monitored at pin35 (FE2+IN) and calculated as follows;
VFZC2 - =Vpin35 - Vref
(20)AFG1,2ON,AFG1,2OFF;
AFG ON (R0;D8=0,R3;D8=1,R3;D9=0)
AFG OFF(R0;D8=0,R3;D8=0,R3;D9=0)
FG1
Vi
Vi=0.5mVrms
Vref
47k
0
t
+
VREF
Vi
2k
34
31
Vo
19
~
~
MITSUBISHI
ELECTRIC
( / 88 )
MITSUBISHI SOUND PROCESSOR LSI
D-62481-87I
TE
(24)-1
(24)-1
(24)-2
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
ELECTRICAL CHARACTERISTICS(3/6)
(Ta=25deg,Vcc=5V,f=1kHz,DCBA=1000,unless otherwise noted)
45
Symbol
GVTE
Block
Parameter
Gain
gain value : DCBA=1000(0dB)
Test Conditions
M62481FP
Measurement
circuit
(21)
Limit
Min Typ Max
14.0
12.0
16.0
Unit
dB
46
47
48
49
50
51
52
53
54
55
56
57
VHTE2
VLTE2
IOHTE2
IOLTE2
VOSTE2
VOSTE1
VOSTE1adj
BALTE
GVTS
VHTS
VLTS
IOHTS
IV
+
TS
High output voltage
Low output voltage
High output current
Low output current
Offset voltage
Offset voltage
Offset voltage
Track balance
Gain
High output voltage
Low output voltage
High output current
INPUT Vin= 4.0V
INPUT Vin= 1.0V
INPUT Vo= 4.0V
INPUT Vo= 1.0V
refer to VREF
refer to VREF
INPUT Vin= 1.0V
INPUT Vin= 4.5V
INPUT Vo= 4.0V
Track gain : 0dB
Track balance : 0%
Track gain : 0dB
Track balance : 0%
Track gain : -11 -> 9.8dB
Track balance : 0%
(22)
3.5
(22)
(23)
(23)
1.0
-40 +40
-15
-15
(21)
-3.0
(25)
-2.0
(26)
3.5
(26)
(27)
4.0
1.0
-2.0
2.0
0
0
0
0
0 2.0
4.0
1.0
-6.0
1.5
-1.0
+15
+15refer to VREF
+3.0
1.5
-4.0
V
V
mA
mA
mV
mV
mV
%
dB
V
V
mA
58
IOLTS
59
60
61
62
63
VOSTS
VJF
VJR
VTC +
VTC -
TC
Low output current
Offset voltage
Jump voltage(forward)
Jump voltage(reverse)
Track cross + voltage
Track cross - voltage
INPUT Vo= 1.0V
refer to VREF
"JF"Mode,
"JR"Mode,
refer to VREF
refer to VREF
MITSUBISHI
ELECTRIC
24
( / 88 )
refer to VREF
refer to VREF
(27)
(28)
(28)
(28)
(29)
(29)
4.0
-25
+0.12
-0.18
+50.0
-75.0
6.0
25
0
+0.15 +0.18
-0.15
-0.12
+62.5 +75.0
-62.5
-50.0
mA
mV
V
V
mV
mV
MITSUBISHI SOUND PROCESSOR LSI
D-62481-87I
note(3/6)
Vi=50mVrms
0
IV+TE BLOCK
27k
47k
400k
1/2Vcc
400k
30k
18k2k220k
Vo
F-E
47k
TE2
47k
400k
30k
18k1k220k
F-E
27k
400k
47k
25
2k
~
M62481FP
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
(21)GVTE,BALTE;
ViE(ViF)
Vref
BALTE=GVTE(E•F) / GVTE (%)
(GVTE(E•F) ; Equal Phase signals
input to pin 56 and 55 )
1/2Vcc
400k
47k
~
Track
gain1
TS OFF
Track
balance2
TE1
1k
22k
TS ON
TS HOLD
Track
gain2
2
3
4
6
240k
7
ViF ViE
56 55
400k
t
Track
balance1
19
30k
VREF
+
(21)VHTE2,VLTE2;
INPUT VIN
VHTE2 : VIN=4.0V
VLTE2 : VIN=1.0V
VREF=1/2Vcc
19
Track
balance2
VREF
56 55
400k
30k
+
47k
VIN
Track
gain1
TS OFF
Track
balance1
TE1
22k
TS ON
TE2
TS HOLD
Track
gain2
2
3
4
6
7
4.7k
4.7k
240k
Vo
MITSUBISHI
ELECTRIC
( / 88 )
MITSUBISHI SOUND PROCESSOR LSI
D-62481-87I
47k
400k
30k
18k
22k
VOSTE2
240k
400k
4.7k
47k
400k
30k
18k2k220k
F-E
240k
400k
47k
VOSTE1
26
1k2k1k
M62481FP
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
(23)IOHTE2,IOLTE2;
INPUT VIN
IOHTE2 : VO=4.0V
IOLTE2 : VO=1.0V
19
Track
balance2
VREF
56 55
400k
30k
+
47k
VIN
Track
gain1
TS OFF
Track
balance1
22k
TS ON
TE2
TS HOLD
Track
gain2
2
3
4
6
7
IOH (IOL)
27kTE1
Vo
(24)-1VOSTE2,VOSTE1;
19
Track
balance2
VREF
56 55
400k
30k
+
F-E
47k
400k
Track
gain1
TS OFF
Track
balance1
TE1
220k
TS ON
TE2
TS HOLD
Track
gain2
VREF=1/2Vcc
2
27k
3
4
47k
6
7
MITSUBISHI
ELECTRIC
( / 88 )
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
D-62481-87I
VosTE1: within +/- 50mV
47k
400k
30k
18k2k220k
27k
400k
47k
27
1k
(24)-2 VOSTE1adj
1
. Track gain ( R3;D4->7=1 ( 9.8dB ) Measurement circuit (24)-1
2
. Track gain ( R3;D4->7=1 ( 9.8dB ) Measurement circuit (24 )-2
Input pin55 add Va( Offet voltage )
VosTE1adj is within +/- 15mV by adjusting Va.
3
. Track gain ( -11->9.8dB ) Measurement circuit (24)-2
VosTE1adj( pin4 ) : mesurement
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
19
Track
balance2
VREF
56 55
400k
30k
F-E
+
47k
400k
Track
gain1
TS OFF
Track
balance1
TE1
22k
TS ON
TE2
1.2M
Track
offset
TS HOLD
Track
gain2
100k
220k
1
2
3
4
6
240k
7
VOSTE2
VREF=1/2Vcc
MITSUBISHI
ELECTRIC
( / 88 )
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