M62481FP Datasheet, PDF (1/89 Pages) Mitsubishi Electric Semiconductor – PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT

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
PD
Pick-Up
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
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