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부품번호 | EMA2011-50FF08NRR 기능 |
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기능 | 2.7W Mono Filter-less Class-D Audio Amplifier | ||
제조업체 | Elite Semiconductor | ||
로고 | |||
ESMT/EMP
EMA2011
2.7W Mono Filter-less Class-D Audio Amplifier
Features
z Supply voltage range: 2.5 V to 5.5 V
z Support single-ended or differential analog
input
z Low static operation current
z Low shut-down current
z Short power-on transient time
z Internal pull-low resistor on shut-down pins
z Short-circuit protection
z Over-temperature protection
z Loudspeaker power within 10% THD+N
1.66W/ch into 8Ω loudspeaker
2.70W/ch into 4Ω loudspeaker
z Loudspeaker efficiency
90% @ 8Ω, THD+N=10%
85% @ 4Ω, THD+N=10%
z MSOP-8, TDFN-9 and WLCSP-9 packages
z Integrated de-pop circuitry
z Internal generated 450kHz switching
frequency
Applications
z Monitor audio
z PDA
z Portable multimedia devices
z Notebook computer
z Mobile phone
Description
The EMA2011 is a mono, filter-less class-D
audio amplifier. Operating with 5.0V loudspeaker
driver supply, it can deliver 2.7W output power
into 4 Ω loudspeaker within 10% THD+N or 2.2W
at 1% THD+N.
The EMA2011 is a mono audio amplifier with
high efficiency and suitable for the notebook
computer, and portable multimedia device.
Functional Block Diagram
Gain=300k /Rin
+ Cin
Differential
input
- Cin
Rin INP
Rin
INN
SD
~300k
+-
-+
PWM
Generator
~300k
-wave
Generator
~300k
Loudspeaker
Driver
Overload, Voltage
& Thermal
Protection
VDD
Cs
VOP
VON
GND
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date: Jul. 2010
Revision: 2.1
1/18
ESMT/EMP
Order, Mark and Packing Information
Package
Product ID
Marking
MSOP-8 EMA2011-50MA08GRR
EMA2011
Packing
3K units
Tape & Reel
TDFN-8 EMA2011-50FF08NRR
WLCSP-9 EMA2011-50WL09GRR
CBA
EMP
Tracking Code
1
2
3
5K units
Tape & Reel
3K units
Tape & Reel
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date: Jul. 2010
Revision: 2.1
4/18
4페이지 ESMT/EMP
EMA2011
z Gain= 2 V/V, Load=4Ω, fin=1 kHz (unless otherwise noted)
SYMBOL
PARAMETER
CONDITION
MIN TYP MAX UNIT
VDD=5.0V
THD+N = 10 %
THD+N = 1 %
2.7
2.2
W
W
THD+N = 10 %
1.3
W
PO RMS Output Power VDD=3.6V
THD+N = 1 % 1.1 W
VDD=2.5V
THD+N = 10 %
THD+N = 1 %
0.6
0.5
W
W
THD+N
Total Harmonic Distortion plus
Noise
VDD=5.0V, Po=2.0W
VDD=3.6V, Po=1.0W
VDD=2.5V, Po=0.5W
0.24
0.34
0.4
%
%
%
SNR
Signal to Noise Ratio
VDD=5.0V, Po=1.8W
94 dB
PSRR
Power Supply Rejection Ratio
VDD=3.6V, Vripple=200mVpp
Inputs ac grounded with Ci=2μF
-60 dB
f=217 Hz
CMRR Common-Mode Rejection Ratio VDD=3.6V, VIC=1Vpp, f=217Hz
-55 dB
Vn
Output integrated noise
VDD=3.6V
(A-weighted)
fin=20Hz ~ 20kHz
η
Efficiency
VDD=5.0V, THD+N=10%
83 μV
80 %
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date: Jul. 2010
Revision: 2.1
7/18
7페이지 | |||
구 성 | 총 18 페이지수 | ||
다운로드 | [ EMA2011-50FF08NRR.PDF 데이터시트 ] |
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부품번호 | 상세설명 및 기능 | 제조사 |
EMA2011-50FF08NRR | 2.7W Mono Filter-less Class-D Audio Amplifier | Elite Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |