L4952TS NSC [National Semiconductor], L4952TS Datasheet

L4952TS

Manufacturer Part Number

L4952TS

Description

3.1W Stereo-SE Audio Power Amplifier with DC Volume Control

Manufacturer

NSC [National Semiconductor]

Datasheets

1.L4952TS.pdf (20 pages)

2.L4952TS.pdf (20 pages)

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LM4952

3.1W Stereo-SE Audio Power Amplifier

with DC Volume Control

General Description

The LM4952 is a dual audio power amplifier primarily de-

signed for demanding applications in flat panel monitors and

TV’s. It is capable of delivering 3.1 watts per channel to a 4Ω

single-ended load with less than 1% THD+N when powered

by a 12V

Eliminating external feedback resistors, an internal, DC-

controlled, volume control allows easy and variable gain

adjustment.

Boomer audio power amplifiers were designed specifically to

provide high quality output power with a minimal amount of

external components. The LM4952 does not require boot-

strap capacitors or snubber circuits. Therefore, it is ideally

suited for display applications requiring high power and mini-

mal size.

The LM4952 features a low-power consumption active-low

shutdown mode. Additionally, the LM4952 features an inter-

nal thermal shutdown protection mechanism along with short

circuit protection.

The LM4952 contains advanced pop & click circuitry that

eliminates noises which would otherwise occur during

turn-on and turn-off transitions.

Connection Diagram

Boomer

is a registered trademark of National Semiconductor Corporation.

power supply.

DS200809

See NS Package Number TS9A

Z = Assembly Plant Code

Order Number LM4952TS

L4952TS = LM4952TS

TT = Die Traceability

U = Wafer Fab Code

XY = Date Coce

Top View

Key Specifications

Features

n Pop & click circuitry eliminates noise during turn-on and

n Low current, active-low shutdown mode

n Low quiescent current

n Stereo 3.8W output, R

n DC-controlled volume control

n Short circuit protection

Applications

n Flat Panel Monitors

n Flat panel TV’s

n Computer Sound Cards

turn-off transitions

Quiscent Power Supply Current

Shutdown current

OUT

= 12V, R

200809E9

= 4Ω, 10% THD+N

= 4Ω

www.national.com

August 2004

18mA (typ)

3.8W (typ)

55µA (typ)

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