LA4587 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LA4587

Preamplifier + Power Amplifier for 1.5 V Headphone Stereos

SANYO -> Panasonic 

Ordering number: EN5204A

Monolithic Linear IC

LA4587M

Preamplifier + Power Amplifier

for 1.5 V Headphone Stereos

Overview

The LA4587M is a system IC that includes all of the necessary

functions for a playback set on a single chip, reducing the

number of external components needed.

Functions

. Stereo preamplifier (supports auto reverse function,

switchable between metal and normal tape)

. Stereo power amplifier (OCL, mute function)

. Ripple filter

. Low boost function (BTL operation in low-frequency range)

. AMSS (Automatic Music Select System)

. Power switch

Package Dimensions

unit : mm

3102-QFP48D

[LA4587M]

Features

. Preamplifier has a high open-loop gain (VGO = 73 dB).

. Preamplifier requires no NF capacitor.

. Virtual ground capacitor can be 1 µF or less. (Lower

impedance is achieved by having a VREF amplifier built in.)

. Ripple filter requires no capacitor for preventing oscillation.

. Powerful output is obtained in low boost output

. (Po = 21 mW/VCC = 1.2 V, f = 100 Hz).

A high-frequency cutoff capacitor is built into the

preamplifier and power amplifier inputs; anti-buzz provision.

SANYO : QIP48D

Specifications

Maximum Ratings at Ta = 25 °C

Parameter

Symbol

Maximum supply voltage

Allowable power dissipation

VCC max

Pd max

Operating temperature

Topr

Storage temperature

Tstg

Conditions

Ambient temperature, Ta − °C

Ratings

Unit

3.0

V

635

mW

–10 to +60

°C

–40 to +125

°C

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

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

13097HA(II)/N3095HA(II) No.5204-1/18

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