Datasheet > EUA2032

EUA2032

更新时间： 2024-09-24 06:58:07

品牌	Logo	应用领域
德信 - EUTECH		放大器功率放大器
页数	文件大小	规格书
1页	152K
描述
Low EMI, Ultra-Low Distortion, 2.5-W Mono Filterless Class-D Audio Power Amplifier

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EUA2032 数据手册

EUA2032

Low EMI, Ultra-Low Distortion, 2.5-W Mono

Filterless Class-D Audio Power Amplifier

DESCRIPTION

FEATURES

The EUA2032 is a high efficiency, 2.5W mono class-D

audio power amplifier. A new developed filterless PWM

modulation architecture further reduces EMI and THD+N,

as well as eliminates the LC output filter, reducing external

component count, system cost, and simplifying design.

Operating in a single 5V supply, EUA2032 is capable of

driving 4Ω speaker load at a continuous average output of

2.5W/10% THD+N or 2W/1% THD+N. The EUA2032 has

high efficiency with speaker load compared to a typical

class AB amplifier. With a 3.6V supply driving an 8Ω

speaker , the efficiency for a 400mW power level is 84%.

In cellular handsets, the earpiece, speaker phone, and

melody ringer can each be driven by the EUA2032. The

gain of EUA2032 is externally configurable which allows

independent gain control from multiple sources by

summing signals from separate sources.

Unique Modulation Scheme Reduces EMI Emissions

Efficiency at 3.6V With an 8-Ω Speaker:

−

84% at 400 mW

Low 2.4-mA Quiescent Current and

0.5-µA Shutdown Current

2.5V to 5.5V Wide Supply Voltage

Ultra-Low Distortion - 0.07% THD+N at 1W and

8-Ω Load

Shutdown Pin Compatible with 1.8V Logic GPIO

Improved PSRR (−72 dB) Eliminates Need for a

Voltage Regulator

Fully Differential Design Reduces RF Rectification

and Eliminates Bypass Capacitor

Improved CMRR Eliminates Two Input

Coupling Capacitors

Internally Generated 250-kHz Switching

Frequency

The EUA2032 is available in space-saving WCSP and

Integrated Pop and Click Suppression Circuitry

1.5mm× 1.5mm Wafer Chip Scale Package (WCSP)

3mm× 3mm TDFN-8 Package

TDFN packages.

RoHS compliant and 100% lead(Pb)-free

APPLICATIONS

Ideal for Wireless or cellular Handsets and PDAs

Typical Application Circuit

Figure1.

DS2032 Ver 1.0 July 2009

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