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PDF EUA2014JIR1 Data sheet ( Hoja de datos )
| Número de pieza | EUA2014JIR1 | |
| Descripción | 2.5W Stereo Class-D Audio Power Amplifier | |
| Fabricantes | Eutech Microelectronics | |
| Logotipo |  |
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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
z Unique Modulation Scheme Reduces EMI Emission
z 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
z Wide Supply Voltage: 2.5V to 5.5V
z Independent Shutdown Control for Each Channel
z Selectable Gain of 6,12,18 and 24 dB
z Internal Pulldown Resistor On Shutdown Pins
z High PSRR :70dB at 217Hz
z Fast 10ms Startup Time
z Low 4.7mA Quiescent Current at 3.6V Supply and
1.5µA Shutdown Current
z Short-Circuit and Thermal Protection
z 3D Enhancement
z Space Saving Packages
- 4mm × 4mm TQFN-24 package
z RoHS Compliant and 100% Lead(Pb)-Free
APPLICATIONS
Typical Application Circuit
z Wireless or Cellular Handsets and PDAs
z Portable Audios
z Notebook PC
DS2014 Ver 0.1 Feb. 2008
Figure1.
1
1 page  
EUA2014Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Electrical Characteristics VDD=PVDD=3.6V The following specifications apply for AV = 6dB, RL = 15µH + 8Ω +
15µH, SS/ FF = VDD = (Spread Spectrum mode), f = 1kHz, unless otherwise specified. Limits apply for TA = 25°C.
Symbol
Parameter
Conditions
EUA2014
Min Typ Max.
Unit
RL=15uH + 4Ω + 15uH, THD ≤ 10% f=1kHz, 22kHz BW
VDD=5V
2.5
VDD=3.6V
1.2
VDD=2.5V
0.5
RL=15uH + 8Ω + 15uH, THD ≤ 10% f=1kHz, 22kHz BW
W
W
W
PO Output Power (Per Channel)
VDD=5V
1.5
VDD=3.6V
0.75
VDD=2.5V
0.35
RL=15uH + 4Ω + 15uH, THD ≤ 1% f=1kHz, 22kHz BW
W
W
W
VDD=5V
VDD=3.6V
1.85
1
VDD=2.5V
0.45
RL=15uH + 8Ω + 15uH, THD ≤ 1% f=1kHz, 22kHz BW
W
W
W
THD+N Total Harmonic Distortion
VDD=5V
VDD=3.6V
VDD=2.5V
Po=500mW/Ch, f=1kHz, RL=8Ω
Po=300mW/Ch, f=1kHz, RL=8Ω
1.2 W
0.6 W
0.27 W
0.2 %
0.22 %
PSRR Power Supply Rejection Ratio
VRIPPLE=200mVp-p Sine,
Inputs AC GND,
CIN=1uF, input referred
fRipple=217Hz
70 dB
CMRR Common Mode Rejection Ration
η Efficiency
Xtalk Crosstalk
SNR Signal to Noise Ratio
fRipple=1kHz
VRIPPLE=1Vp-p, fRIPPLE=217Hz
Po=1W/Ch, f=1kHz,
RL=8Ω, VDD=5V
Po=500mW/Ch, f=1kHz
VDD=5V, Po=1W,
Fixed Frequency Mode
ε OS Output Noise
Input referred,
Fixed Frequency Mode
No Weighted Filter
A-Weighted Filter
68 dB
60 dB
86 %
82 dB
88 dB
66 µV
48 µV
DS2014 Ver 0.1 Feb. 2008
5
5 Page 
Packaging Information
EUA2014Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
TQFN-24
SYMBOLS
A
A1
b
E
D
D1
E1
e
L
MILLIMETERS
MIN.
0.70
MAX.
0.80
0.00 0.05
0.18 0.30
3.90 4.10
3.90 4.10
2.70
2.70
0.50
0.30 0.50
INCHES
MIN.
0.028
MAX.
0.031
0.000
0.002
0.007
0.012
0.154
0.161
0.154
0.161
0.106
0.106
0.020
0.012
0.020
DS2014 Ver 0.1 Feb. 2008
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet EUA2014JIR1.PDF ] | |
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