LA4592W Datasheet

IC型號(hào)：
LA4592W
PDF描述：
1.5-V Preamplifier + Power Amplifier for Headphone Stereo Pr...
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Ordering number : EN5662

Monolithic Linear IC

LA4592W

1.5-V Preamplifier + Power Amplifier

for Headphone Stereo Products

Overview

The LA4592W is a single-chip 1.5-V headphone stereo

system IC. The LA4592W adds a variety of functions,

including a switch amplifier (for end product audio quality

switches, the metal tape switch, and other switches) and an

AMSS (Automatic Music Search System) function that

supports blank skipping, to the earlier LA4590W.

Furthermore, the LA4592W provides even lower no-signal

time power levels for lower end-product power

dissipation. In combination with the LA3235W 1.5-V

record preamplifier IC, the LA4592W can be used to

implement a record/playback cassette system with just two

ICs.

鈥?/div>

functions.

Ripple filter

Low boost function (BTL operation in the low-

frequency region)

Inter-track detection function (Supports AMSS and

blank skipping)

Two switching amplifiers

Power switch (standby function)

Features

鈥?Virtual ground impedance is reduced by built-in V

REF

amplifier

鈥?No capacitor required for ripple filter oscillation

prevention.

鈥?Provides ample output power at low frequencies.

= 24 mW, V

= 1.2 V, f = 150 Hz)

鈥?High-frequency cutoff capacitors built into the

preamplifier and power amplifier inputs to minimize

buzzing.

Functions

鈥?Stereo preamplifier: supports auto reverse and includes a

muting function.

鈥?Stereo power amplifier: Includes OCL and muting

Package Dimensions

Allowable power dissipation, Pd max 鈥?W

unit: mm

3163A-SQFP48

[LA4592W]

Ambient temperature, Ta 鈥?擄C

Specifications

Maximum Ratings

at Ta = 25擄C

Parameter

Maximum supply voltage

Allowable power dissipation

Operating temperature

Storage temperature

Symbol

max

Pd max

Topr

Tstg

Conditions

SANYO: SQFP48

Ratings

3.0

320

鈥?0 to +60

鈥?0 to +125

Unit

擄C

Allowable Operating Ranges

at Ta = 25擄C

Parameter

Recommended supply voltage

Operating supply voltage range

Symbol

Conditions

Ratings

1.5

0.95 to 2.2

Unit

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

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

73097HA (OT) No. 5662-1/5

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