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PDF M62481FP Data sheet ( Hoja de datos )
| Número de pieza | M62481FP | |
| Descripción | PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de M62481FP (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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MITSUBISHI SOUND PROCESSOR LSI
M62481FP
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
DESCRIPTION
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.
FEATURES
•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
•Built-in self-reset circuit
APPLICATION
CD PLAYER,CD-ROM PLAYER
RECOMMENDED OPERATION CONDITIONS
•Supply Voltage Range •••••• 4.5 -> 5.5V
•Rated Supply Voltage ••••••5.0V
System Block Diagram
M62481FP
Pick-Up
PD
LD
HF PRE AMP
FE PRE AMP
TE PRE AMP
ALPC
ADJ
ADJ
TRK Servo
TRK
Actuator
Sled
Motor
FCS
Actuator
Spindle
Motor
DRIVER
M5674X
56P6S
0.65mm pitch 56pin QFP
(10.0mmX10.0mmX2.8mm)
HF signal
MCU I/F
FCS Servo
Search
Sled Servo
MCU
DSP
M6582X
D-62481-87I
MITSUBISHI
ELECTRIC
( 1 / 88 )
1 page  
PIN No. Symbol
9 RIREF
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
Equivalent circuit
9
Function
Current reference
10 Vcc
11 TG2
12 TG3
10
1k
11
1k 10k
1k
12
1k 10k
13 TS - IN
13
Power supply
TG2 SW
TG3 SW
TS Amp negative input
14 TS OUT
15 SS + IN
16 SS - IN
14
10k
15
10k
16
TS Amp output
SS Amp positive input
SS Amp negative input
D-62481-87I
MITSUBISHI
ELECTRIC
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5 Page 
MITSUBISHI SOUND PROCESSOR LSI
M62481FP
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
ABUSOLUTE MAXIMAUM RATING
Ta=25deg.,unless otherwise noted
Symbol
Parameter
Conditions
Ratings
Vcc Maximum Supply Voltage
VI Input Voltage
Pd Power Dissipation
KO
Topr
Thermal Derating
Operating Temparature
Tstg Storage Temparature
Ta = 25deg.
7
-0.3 -> Vcc+0.3
900
9.0
-20 -> +85
-40 -> +125
1000
900
800
THERMAL DERATING
(MAXIMUM RATING)
Unit
V
V
mW
mW/deg.
deg.
deg.
600
400
360
200
0
0
85
25 50 75 100 125
AMBIENT TEMPERATURE Ta (deg.)
RECOMMENDED OPERATING CONDITION
Symbol
Vcc
Parameter
Supply Voltage
Conditions
Limits
Min Typ
4.5 5.0
Max
5.5
VIH High-level Input Voltage
VIL Low-level Input Voltage
Pin 23 ,Pin 24 ,
Pin 25 ,Pin 26
Vcc -> 0.7
0
Vcc
Vcc->0.3
fck Clock frequency
500
D-62481-87I
MITSUBISHI
ELECTRIC
( 11 / 88 )
Unit
V
V
V
kHz
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet M62481FP.PDF ] | |
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