EUA2012

DS2012 Ver 1.3 May 2009

1

2.7-W/CH Stereo Filter-less Class-D

Audio Power Amplifier

DESCRIPTION

The EUA2012 is a high efficiency, 2.7W/channel stereo

class-D audio power amplifier. A low noise, filterless

PWM architecture eliminates the output filter, requiring

only two external components for operation.

Operating from a single 5V supply, EUA2012 is capable of

delivering 2.7W/ channel of continuous output power to a

4Ω load with 10% THD+N.

The EUA2012 features independent shutdown controls for

each channel. The gain can be selected to 6, 12, 18, or 24

dB utilizing the G0 and G1 gain select pins. High PSRR

and differential architecture provide increased immunity to

noise and RF rectification.

The EUA2012 is available in space-saving WCSP, TQFN

and TSSOP packages, is an idea choice for mobile phones

and other portable communication devices.

Typical Application Circuit

FEATURES

Unique Modulation Scheme Reduces EMI Emission

Output Power By TQFN Package

- 3.2W/Ch Into 3Ω at 5V

- 2.7W/Ch Into 4Ω at 5V

- 1.6W/Ch Into 8Ω at 5V

- 800mW/Ch Into 8Ω at 3.6V

Only Two External components Required

Wide Supply Voltage: 2.5V to 5.5V

Independent Shutdown Control for Each Channel

Selectable Gain of 6,12,18 and 24 dB

Internal Pulldown Resistor On Shutdown Pins

High PSRR :74dB at 217Hz

Fast 10ms Startup Time

Low 5mA Quiescent Current at 3.6V Supply and

1.5µA Shutdown Current

Thermal Protection

Space Saving Packages

-

4mm

× 4mm TQFN-20 package

-

2mm

× 2mm WCSP-16 package

-

TSSOP-20 package

RoHS Compliant and 100% Lead(Pb)-Free

APPLICATIONS

Wireless or Cellular Handsets and PDAs

Portable Audios

Notebook PC

Figure1.