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PDF A2323 Data sheet ( Hoja de datos )
| Número de pieza | A2323 | |
| Descripción | 3W ANTI-CLIP CLASS-D AUDIO POWER AMPLIFIER | |
| Fabricantes | AiT Semiconductor | |
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AiT Semiconductor Inc.
www.ait-ic.com
A2323
AUDIO AMPLIFIER
3W ANTI-CLIP CLASS-D AUDIO POWER AMPLIFIER
DESCRIPTION
FEATURES
A2323 is a 3-W (VDD=5.0V, RL=4Ω) high efficiency
filter-free class-D audio power amplifier .
A2323 has a “Professional Anti-Clip output control
circuit” which reducing distortion of output signal due
to either the over level input signal or power supply
voltage down with battery.
Features like high efficiency, −80dB PSRR, over-
current protection and thermal protection function
make the A2323 ideal for cellular handsets.
The A2323 is available in CSP9 package.
Output Power
3.0W (VDD=5.0V, RL =4Ω, THD+N=10%)
1.8W (VDD=5.0V, RL =8Ω, THD+N=10%)
Four mode can be selected with CTRL
terminal: Anti-Clip 1, Anti-Clip 2, Anti-Clip off,
Power-Down
Low THD+N and Low Noise
Low EMI
Improved PSRR (−80dB) and Wide Supply
Voltage (2.5 V to 5.0V) Eliminates Need for a
Voltage Regulator
Over-current and Thermal Protection function
Pop noise reduction function
Available in CSP9 Package
ORDERING INFORMATION
APPLICATION
Package Type
Part Number
CSP9
A2323G9R
G9
A2323G9VR
Note
V: Halogen free Package
R: Tape & Reel
AiT provides all RoHS products
Suffix “ V “ means Halogen free Package
Mobile phone, PDA
MP3/4, PMP, GPS
Portable electronic devices
TYPICAL APPLICATION
REV2.0
- MAY 2013 RELEASED, JAN 2015 UPDATED -
-1-
1 page  
AiT Semiconductor Inc.
www.ait-ic.com
A2323
AUDIO AMPLIFIER
3W ANTI-CLIP CLASS-D AUDIO POWER AMPLIFIER
ANALOG CHARACTERISTICS
VDD =3.6V, AV=17.5dB, TA =25°C, CIN=100nF, Anti-Clip off, unless otherwise noted.)
Parameter
Symbol
Conditions
Min.
Maximum Output
RL=4Ω,VDD=5V f=1KHz,
PO
RL=8Ω,VDD=5V THD+N=10%
RL=4Ω, PO =0.65W, f=1KHz
Total Harmonic Distortion Rate THD+N
RL=8Ω, PO =0.65W, f=1KHz
Residual Noise
N AV=17.5dB A-Weighted
Signal/Noise Ratio
SNR AV=17.5dB A-Weighted
Power Supply Rejection Ratio PSRR 217Hz
Maximum Efficiency
RL=8Ω, PO =0. 6W
η
RL=8Ω, PO =0. 1W
Output Offset Voltage
VO
Frequency Characteristics
fRES CIN=0.1μF, f=100Hz to 20KHz -3
Closed Loop Gain
GV VDD=5V Anti-Clip Off
Typ.
3
1.8
0.08
0.06
60
95
-80
85
80
±10
17.5
Max. Unit
W
%
μVrms
dB
dB
%
mV
1 dB
dB
REV2.0
- MAY 2013 RELEASED, JAN 2015 UPDATED -
-5-
5 Page 
AiT Semiconductor Inc.
www.ait-ic.com
IMPORTANT NOTICE
A2323
AUDIO AMPLIFIER
3W ANTI-CLIP CLASS-D AUDIO POWER AMPLIFIER
AiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to
discontinue any integrated circuit product or service without notice, and advises its customers to obtain the
latest version of relevant information to verify, before placing orders, that the information being relied on is
current.
AiT Semiconductor Inc.'s integrated circuit products are not designed, intended, authorized, or warranted to
be suitable for use in life support applications, devices or systems or other critical applications. Use of AiT
products in such applications is understood to be fully at the risk of the customer. As used herein may involve
potential risks of death, personal injury, or servere property, or environmental damage. In order to minimize
risks associated with the customer's applications, the customer should provide adequate design and
operating safeguards.
AiT Semiconductor Inc. assumes to no liability to customer product design or application support. AiT
warrants the performance of its products of the specifications applicable at the time of sale.
REV2.0
- MAY 2013 RELEASED, JAN 2015 UPDATED -
- 11 -
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet A2323.PDF ] | |
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