Ordering number : ENN6125
Monolithic Linear IC
LA9251M
CD Player Analog Signal Processor (ASP)
Overview
The LA9251M is a servo signal-processing IC for CD
players. In combination with a CD DSP such as the
LC78626KE, it can implement a CD player with a
minimal number of external components.
• Built-in EF balance adjustment
• Built-in RF level AGC function
• RF level follower function for the tracking servo gain
(with turn-off function)
Package Dimensions
unit: mm
3159-QIP64E
[LA9251M]
17.2
14.0
0.35
33
Functions
•
•
•
•
•
•
•
•
•
•
•
•
•
•
I/V amplifier
SLC
FE
Focus servo amplifier
Spindle servo amplifier (with gain switching function)
Focus detection (DRF and FZD)
Defect detection
RF amplifier with AGC
APC
TE (with variable gain and auto balance function)
Tracking servo amplifier
Sled servo amplifier (with turn-off function)
Track detection (HFL, TES)
Shock detection
1.0
1.6
1.0
48
49
0.8
1.6
1.0
0.15
32
17.2
14.0
0.8
17
1.0
1
16
3.0max
0.8
Ratings
7
200
–15 to +75
64
0.1
2.7
15.6
Features
• Low-voltage operation: 2.4 V (minimum)
• Low current drain: 15 mA (at V
CC
= 3.0 V, typical)
SANYO: QIP64E
Specifications
Maximum Ratings
at Ta = 25°C, with pin 46 tied to ground
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
max
Pd max
Topr
Tstg
Pin 56
Ta
≤
75°C
Conditions
Unit
V
mW
°C
°C
–40 to +150
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
42800RM (OT) No. 6125-1/17
SANYO [ SANYO SEMICON DEVICE ]
