Overview

The LA4585M is a preamplifier plus power amplifier IC

that supports auto-reverse and was developed for use in

3-V headphone stereo products.

Features

• The LA4585M is designed for use in playback-only

compact cassette players. In addition to preamplifier and

power amplifier functions, the LA4585M also provides

low boost and automatic power output limiter

(PVSS:Peak Volume Select System) functions.

• Provided in a mini-flat 36-pin quad package (0.65 mm

lead pitch) optimal for miniature end products.

• Two auto-reverse playback preamplifiers

• Two headphone power amplifiers (16

Ω)

• Low boost function (auto-loudness effect)

• Output limiter function (PVSS)

• Two radio input switches (pre-muting switches)

• Power muting switch

Package Dimensions

unit: mm

3162B-QFP36

Monolithic Linear IC

Ordering number : EN5661

73097HA(OT) No. 5661-1/5

SANYO: QFP36

[LA4585M]

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

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

3-V Preamplifier + Power Amplifier for

Headphone Stereo Products

LA4585M

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

4.5

V

Allowable power dissipation

Pd max

375

mW

Operating temperature

Topr

–20 to +75

°C

Storage temperature

Tstg

–40 to +150

°C

Specifications

Parameter

Symbol

Conditions

Ratings

Unit

Recommended supply voltage

3.0

V

Operating supply voltage range

1.8 to 3.6

V

Operating Conditions at Ta = 25°C

Ambient temperature, Ta – °C