EUA2011HIR1

 

 

The EUA2011 is a high efficiency, 3W mono class-D audio 

power amplifier. A low noise, filterless PWM architecture 

eliminates the output filter, reducing external component 

count, system cost, and simplifying design. 

Operating in a single 5V supply, EUA2011 is capable of 

driving 4Ω speaker load at a continuous average output of 

3W/10% THD+N or 2W/1% THD+N. The EUA2011 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 88%. 

In cellular handsets, the earpiece, speaker phone, and 

melody ringer can each be driven by the EUA2011. The 

gain of EUA2011 is externally configurable which allows 

independent gain control from multiple sources by 

summing signals from separate sources. 

The EUA2011 is available in space-saving WCSP and 

TDFN packages. 

 

 

 

**注意 & Noted:

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