S1M0081 Samsung Semiconductor, Inc., S1M0081 Datasheet

S1M0081

Manufacturer Part Number

S1M0081

Description

Switch Integrated Stereo Class-d Amplifier

Manufacturer

Samsung Semiconductor, Inc.

Datasheet

1.S1M0081.pdf (1 pages)

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This document contains specification and information on a product

developed or under development. Samsung Electronics reserves the

right to change specification or information without any prior notice.

Overview

The S1M0081X is an High Efficiency

Stereo Class-D Amplifier in 28-ELP

package.(4mm X 4 mm)

S1M0081X integrates input and output

selection switches internally, it can output

various audio signals efficiently to the

speaker. ( ex. Audio1,2 and Voice )

By integrating input and output selection

switches, S1M0081X can contribute to the

saving BoM cost and area size.

S1M0081X has a good EMI property using

Spread Spectrum Modulation.

Functional Block Diagram

Applications

S1M0081X

Switch Integrated Stereo Class-D Amplifier

S1M0081X

•

: PMP, Navigator, PDA, Note PC etc.

Mobile Phones

Portable Applications

Features Summary

- 1.3 W into 8 Ω @ 5 V

- 700 mW into 8 Ω @ 3.6 V

- 91 % Efficiency , @ 3.6V, 0.7W into 8 Ω

- 86 % Efficiency , @ 3.6V, 1.2W into 4 Ω

- THD + N < 0.01 %, 1 KHz

- 4mm X 4mm 28 ELP package with 0.4mm pitch

- Load short, Power short

- Latched operation by EN pin

2.5W into 4 Ω @ 5V

High Efficiency

Power Supply Range : 2.8 V to 5.5 V

Low power consumption

Low shut down current

4 ea Analog switch included

Selectable gain of 6, 12, 18, and 24 dB

Internal pull-down resistors in EN/SEL pins

Fast start-up time (1ms @ Cvref =100nF)

High Quality sound

Start-up procedure for preventing Pop-Up Noise

Space saving package

Internal short protection circuit

Product Technical Brief

S1M0081X

April 2007

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