Ordering number : ENN6125

42800RM (OT) No. 6125-1/17

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.

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

Features

• Low-voltage operation: 2.4 V (minimum)

• 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

14.0

17.2

1.0

1.0

1.6

0.15

0.35

0.1

15.6

0.8

0.8

1

16

17

32

33

48

49

64

2.7

SANYO: QIP64E

[LA9251M]

LA9251M

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

CD Player Analog Signal Processor (ASP)

Monolithic Linear IC

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.

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

Pin 56

7

V

Allowable power dissipation

Pd max

Ta

≤ 75°C

200

mW

Operating temperature

Topr

–15 to +75

°C

Storage temperature

Tstg

–40 to +150

°C

Specifications

Maximum Ratings at Ta = 25°C, with pin 46 tied to ground