LA4589W View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

View to exact match

LA4589W

1.5V Stereo Headphone Preamplifier and Power Amplifier

SANYO -> Panasonic 

Ordering number:ENN3968

Monolithic Linear IC

LA4589W

1.5V Stereo Headphone Preamplifier

and Power Amplifier

Overview

The LA4589W is a 1.5V stereo headphone preamplifier

and power amplifier IC that provides all the functions of a

complete playback system in a single chip, making it ideal

for battery-powered, portable cassette players.

The LA4589W incorporates a metal/normal-tape equaliza-

tion preamplifier, a power amplifier dual power supply

ripple filters, a reference voltage amplifier that enables

small-value (under 1 µF) virtual-earth capacitors to be used,

and a system controller.

The LA4589W features single-pin control bass boost and

forward/reverse playback, an automatic music search

(AMS) function, inputs for an auto-reverse tape mechanism,

a power amplifier mute function, a power switch, and se-

lectable single or dual ripple filter operation.

The LA4589W operates from a 0.95 to 2.2V supply and is

available in 48-pin SQFPs.

Package Dimensions

unit:mm

3163A-SQFP48

[LA4589W]

0.75

36

37

9.0

7.0

0.5 0.18

0.75 0.15

25

24

48

1

13

12

0.5 0.5

SANYO : SQFP48

Features

• Single-pin control bass boost.

• Automatic music search (AMS).

• Preamplifier inputs for auto-reverse tape mechanism.

• Single-pin control forward/reverse playback selection.

• Two, on-chip, ripple filters.

• Selectable, single or dual ripple filter operation.

• Metal- and normal-tape modes.

• Power amplifier mute function.

• On-chip reference voltage amplifier.

• No power amplifier output capacitors required.

• 73dB (typ) preamplifier open-loop voltage gain.

• 21mW (typ) output power with bass boost.

• Built-in noise reduction capacitors.

• 0.95 to 2.2V supply.

• 48-pin SQFP.

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

30600TN (KT)/5062TS No.3968–1/9

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