EUA2011A Datasheet PDF - Eutech Microelectronics
| Part Number | EUA2011A | |
| Description | 2.5-W Mono Filterless Class-D Audio Power Amplifier | |
| Manufacturers | Eutech Microelectronics | |
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There is a preview and EUA2011A download ( pdf file ) link at the bottom of this page. Total 14 Pages | ||
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EUA2011A
Low EMI, Ultra-Low Distortion, 2.5-W Mono
Filterless Class-D Audio Power Amplifier
DESCRIPTION
The EUA2011A 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, EUA2011A is capable of
driving 4Ω speaker load at a continuous average output of
2.5W/10% THD+N or 2W/1% THD+N. The EUA2011A
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 EUA2011A. The
gain of EUA2011A is externally configurable which allows
independent gain control from multiple sources by
summing signals from separate sources.
The EUA2011A is available in space-saving WCSP
package.
FEATURES
z Unique Modulation Scheme Reduces EMI Emissions
z Efficiency at 3.6V With an 8-Ω Speaker:
− 84% at 400 mW
z Low 2.4-mA Quiescent Current and
0.5-µA Shutdown Current
z 2.5V to 5.5V Wide Supply Voltage
z Ultra-Low Distortion - 0.07% THD+N at 1W and
8-Ω Load
z Shutdown Pin Compatible with 1.8V Logic GPIO
z Improved PSRR (−72 dB) Eliminates Need for a
Voltage Regulator
z Fully Differential Design Reduces RF Rectification
and Eliminates Bypass Capacitor
z Improved CMRR Eliminates Two Input
Coupling Capacitors
z Internally Generated 250-kHz Switching
Frequency
z Integrated Pop and Click Suppression Circuitry
z 1.5mm × 1.5mm Wafer Chip Scale Package (WCSP)
z RoHS compliant and 100% lead(Pb)-free
Typical Application Circuit
APPLICATIONS
z Ideal for Wireless or cellular Handsets and PDAs
DS2011A Ver 0.2 July 2008
Figure1
1
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EUA2011A
Electrical Characteristics TA = 25°C ,Gain= 2V/V,RL=8Ω (Unless otherwise noted)
Symbol
Parameter
Conditions
EUA2011A
Min Typ Max.
VDD= 5V
THD+N=10%,
f=1kHz, RL=4Ω
VDD= 3.6V
VDD= 2.5V
2.50
1.25
0.58
PO Output power
VDD= 5V
THD+N=1%,
f=1kHz, RL=4Ω
VDD= 3.6V
VDD= 2.5V
VDD= 5V
THD+N=10%,
f=1kHz, RL=8Ω
VDD= 3.6V
VDD= 2.5V
2
1
0.45
1.58
0.80
0.36
VDD= 5V
THD+N=1%,
f=1kHz, RL=8Ω
VDD= 3.6V
VDD= 2.5V
1.26
0.63
0.29
THD+N
Total harmonic distortion
plus noise
VDD= 5V,PO=1W, RL=8Ω, f=1kHz
VDD= 3.6V,PO=0.5W, RL=8Ω, f=1kHz
VDD= 2.5V,PO=200mW, RL=8Ω, f=1kHz
0.07
0.05
0.05
Unit
W
W
W
W
%
kSVR Supply ripple rejection ratio
VDD= 3.6V, Inputs f=217 Hz,
ac-grounded with V(RIPPLE)=200mVpp
CI= 2µF
-60
dB
SNR Signal-to-noise ratio
Vn Output voltage noise
CMRR
ZI
Common mode rejection
ratio
Start-up time from shutdown
VDD= 5V,PO=1W, RL=8Ω
VDD= 3.6V,
f=20Hz to
No weighting
20kHz,Inputs
ac-grounded with A weighting
CI= 2µF
VDD= 3.6V,
VIC=1 VPP
f=217 Hz
VDD= 3.6V
85 dB
220
µVRMS
96
-55 dB
11.5 ms
DS2011A Ver 0.2 July 2008
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for EUA2011A electronic component. |
| Information | Total 14 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ EUA2011A.PDF Datasheet ] | |
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