芯美电子
EUA2014
2.5W Stereo Class-D Audio Power Amplifier
with 3D Enhancement
DESCRIPTION
The EUA2014 is a high efficiency, 2.5W/channel stereo
class-D audio power amplifier. A low noise, filterless
PWM architecture eliminates the output filter.
Operating from a single 5V supply, EUA2014 is capable of
delivering 2.5W/ channel of continuous output power to a
4Ω load with 10% THD+N.
The EUA2014 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 EUA2014 also includes 3D audio enhancement that
improves stereo sound quality. In devices where the left
and right speakers are in close proximity, 3D enhancement
affects channel specialization, widening the perceived
soundstage.
The EUA2014 is available in space-saving TQFN package,
is an idea choice for mobile phones and other portable
communication devices.
FEATURES
Unique Modulation Scheme Reduces EMI Emission
Output Power By TQFN Package
- 2.5W/Ch Into 4Ω at 5V
- 1.5W/Ch Into 8Ω at 5V
- 750mW/Ch Into 8Ω at 3.6V
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 :70dB at 217Hz
Fast 10ms Startup Time
Low 4.7mA Quiescent Current at 3.6V Supply and
1.5µA Shutdown Current
Short-Circuit and Thermal Protection
3D Enhancement
Space Saving Packages
- 4mm
×
4mm TQFN-24 package
RoHS Compliant and 100% Lead(Pb)-Free
APPLICATIONS
Typical Application Circuit
Wireless or Cellular Handsets and PDAs
Portable Audios
Notebook PC
Figure1.
DS2014
Ver 0.1 Feb. 2008
1
联系电话：１５９９９６４４５７９ ８３１５１７１５
ETC [ ETC ]
