LA3550M 查看數據表（PDF） - SANYO -> Panasonic

零件编号

产品描述 (功能)

比赛名单

LA3550M

Auto-Loudness Controller for Headphone Stereo Systems

SANYO -> Panasonic 

Ordering number:ENN2871B

Monolithic Linear IC

LA3550M

Auto-Loudness Controller

for Headphone Stereo Systems

Overview

The LA3550M Auto-Loudness Controller IC provides user-

selectable boosting of up to approximately 24dB for low-

frequency sound components in the range of 30 to 50Hz.

Boosting gain for low frequencies can be controlled in pro-

portion to the level of an external input signal. High fre-

quencies are also boosted by a fixed 6dB. The result gives

natural and dynamic boosting at all sound levels, and real-

istic audio reproduction.

The LA3550M operates on a 1.5V power supply and boosts

a super bass adopting the external CR circuit. The boosting

feature can be selected “ON/OFF” by means of an elec-

tronic switch on the chip.

Package Dimensions

unit:mm

3111-MFP14S

[LA3550M]

14

8

1

7

8.0

Features

• User-selectable low-frequency boost levels from 5.5 to

23.5dB (max).

• 6dB (fixed) high-frequency boosting.

• Low-frequency boost gain level control circuit on-chip.

• Output signal detection circuit on-chip.

• Boost select/deselect switching.

• Built-in AGC circuit prevents clipping.

• Reduced noise levels.

• Reduced parts’ count.

• Low-power operation.

• 14-pin MFP package (1mm pitch pins).

0.35

1.0 1.0

0.15

SANYO : MFP14S

Specifications

Absolute Maximum Ratings at Ta = 25˚C

Parameter

Maximum Supply Voltage

Allowable Power Dissipation

Operating Temperature

Storage Temperature

Symbol

VCC max

Pd max

Topr

Tstg

Quiescent

Conditions

Ratings

Unit

4.5 V

150 mW

–20 to +75 ˚C

–40 to +125 ˚C

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

21000TH (KT)/7102TS/4041TS/9018YT/2168TA, TA No.2871–1/4

Share Link: