A2230M8R [AITSEMI]
AUDIO POWER AMPLIFIER;
| 型号： | A2230M8R |
| 厂家： | 
AiT Semiconductor |
| 描述： | AUDIO POWER AMPLIFIER 放大器 功率放大器 |
| 文件： | 总9页 (文件大小：474K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
A2230
AiT Semiconductor Inc.
www.ait-ic.com
AUDIO AMPLIFIER
1.7 WATT AUDIO POWER AMPLIFIER
DESCRIPTION
FEATURES
The A2230 is a Class-AB audio power amplifier. It is
capable of delivering 1.7 watts of continuous average
power to an 4Ω BTL load with less than 10%
distortion (THD+N) from a 5VDC power supply, or 1.1
watts continuous average power to an 8Ω BTL load
with less than 1% distortion.
Improved PSRR at 217 Hz & 1 KHz 60dB
Power output at 5.0V, 10% THD+N, 4Ω
1.7 W (typ.)
Power output at 5.0V, 1% THD+N, 8Ω
1.1 W (typ.)
2.2V ~ 5.5V operation
The A2230 is designed specifically to provide high
quality output power with a minimal amount of
external components. It does not require output
coupling capacitors or bootstrap capacitors. The
A2230 is ideally suited for audio speakers and other
low voltage applications.
Improved circuitry eliminates pop-click noise
during turn-on and turn-off transitions
No output coupling capacitors, snubber
networks or bootstrap capacitors required
Unity-gain stable
External gain configuration capability
Available in SOP8 package.
With special pop-click eliminating circuit, the A2230
provides perfect pop-click characteristic during
turn-on and turn-off transitions.
APPLICATION
The A2230 is unity-gain stable and can be configured
by external gain-setting resistors.
Audio speakers
Desktop computers
Low voltage audio systems
The A2230 is available in SOP8 package.
ORDERING INFORMATION
TYPICAL APPLICATION
Package Type Part Number
A2230M8R
SOP8
M8
A2230M8VR
V: Halogen free Package
R: Tape & Reel
Note
SPQ: 2.5K/Reel
AiT provides all RoHS products
Suffix ꢀ V ꢀ means Halogen free Package
REV2.0
- DEC 2010 RELEASED, DEC 2015 UPDATED -
- 1 -
A2230
AiT Semiconductor Inc.
www.ait-ic.com
AUDIO AMPLIFIER
1.7 WATT AUDIO POWER AMPLIFIER
PIN DESCIPTION
TOP VIEW
Pin #
Symbol
SHD
BP
I/O
I
Functions
Shut-down Logical Control, ꢁ1ꢂ is active.
1
2
3
4
5
6
7
8
I/O Analog ground for inner OPAs. Itꢂs about a half of VDD
.
INP
I
I
Positive Input
INN
Negative Input
VOUT1
VDD
O
Negative BTL Output
I/O Power Supply (2.2~5.5 V)
I/O Ground
GND
VOUT2
O
Positive BTL Output
EXTERNAL COMPONENTS DESCRIPTION
Components
Functional Description
Inverting input resistance which sets the closed-loop gain in conjunction with Rf. This resistor
also forms a high pass filter with Ci at fc = 1/(2πRi*Ci).
Ri
Ci
Rf
Input coupling capacitor which blocks the DC voltage at the amplifiers input terminates. Also
creates a high-pass filter with Ri at fc = 1/(2πRi*Ci).
Feedback resistance which sets the closed-loop gain in conjunction with Ri. The gain is
AVD=2*(Rf/Ri).
Cs
Cb
Supply bypass capacitor which provides power supply filtering.
Bypass pin capacitor which provides half-supply filtering. Refer to the section.
REV2.0
- DEC 2010 RELEASED, DEC 2015 UPDATED -
- 2 -
A2230
AiT Semiconductor Inc.
www.ait-ic.com
AUDIO AMPLIFIER
1.7 WATT AUDIO POWER AMPLIFIER
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
-0.3V~6.0V
-0.3V~VDD+0.3V
Input Voltage
Power dissipation
Junction Temperature
Storage Temperature
Thermal Resistance
θJA(SOP8)
See Dissipation Rating Table
-40℃~+150℃
-65℃~+150℃
184℃/W
Stress beyond above listed ꢀAbsolute Maximum Ratingsꢃ may lead permanent damage to the device..These are stress ratings only and operations
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
OPERATING RATINGS
Parameter
Value
Temperature Range
Supply Voltage
−40°C ≤ TA ≤ 85°C
2.2V ≤ VDD ≤ 5.5V
REV2.0
- DEC 2010 RELEASED, DEC 2015 UPDATED -
- 3 -
A2230
AiT Semiconductor Inc.
www.ait-ic.com
AUDIO AMPLIFIER
1.7 WATT AUDIO POWER AMPLIFIER
ELECTRICAL CHARACTERISTICS
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified.
Limits apply for TA = 25℃.
VDD = 5V
Parameter
Symbol
IDD
Conditions
VIN = 0V, 8Ω Load
Min.
Typ.
3.0
2.5
0.5
-
Max.
Unit
mA
-
8.0
7.0
-
Quiescent Power Supply Current
VIN = 0V, No Load
-
Shutdown Current
ISD
VIN=0V, VSHD=GND, No Load
-
μA
V
Shutdown Voltage Input High
Shutdown Voltage Input Low
Output Offset Voltage
VSDIH
VSDIL
VOS
1.2
-
-
-
0.9
50
-
V
-50
6.0
0.07
1.1
1.7
mV
%
Total Harmonic Distortion + Noise THD+N Po=0.5Wrms, f=1KHz
-
-
-
-
THD+N<=1%, f=1KHz, 8Ω Load
THD+N<=10%, f=1KHz, 4Ω Load
Output Power
PO
W
-
Input terminated with 10Ω,
VDDRIPPLE=0.2VP-P, f=217Hz
Input terminated with 10Ω,
VDDRIPPLE=0.2VP-P, f=1KHz
-
60
-
dB
Power Supply Rejection Ratio
Wake-up time
PSRR
TWU
-
-
61
-
-
dB
ms
100
VDD = 3V
Parameter
Symbol
IDD
Conditions
VIN = 0V, 8Ω Load
Min.
Typ.
2.0
1.5
0.5
-
Max.
Unit
mA
-
7.0
6.0
-
Quiescent Power Supply Current
VIN = 0V, No Load
-
Shutdown Current
ISD
VIN=0V, VSHD=GND, No Load
-
1.0
-
μA
V
Shutdown Voltage Input High
Shutdown Voltage Input Low
Output Offset Voltage
VSDIH
VSDIL
VOS
-
-
0.7
50
-
V
-50
-
6.0
0.08
310
mV
%
Total Harmonic Distortion + Noise
Output Power
THD+N Po=0.25Wrms, f=1KHz
PO
PSRR
TWU
-
-
mW
THD+N<=1%, f=1KHz, 8Ω Load
Input terminated with 10Ω,
VDDRIPPLE=0.2VP-P, f=217Hz
Input terminated with 10Ω,
VDDRIPPLE=0.2VP-P, f=1KHz
-
57
-
dB
Power Supply Rejection Ratio
Wake-up time
-
-
58
75
-
-
dB
ms
REV2.0
- DEC 2010 RELEASED, DEC 2015 UPDATED -
- 4 -
A2230
AiT Semiconductor Inc.
www.ait-ic.com
AUDIO AMPLIFIER
1.7 WATT AUDIO POWER AMPLIFIER
TYPICAL APPLICATION CIRCUIT
Figure 1. A2230 Typical Application Circuit
Figure 2. A2230 Differential Amplifier Configuration
REV2.0
- DEC 2010 RELEASED, DEC 2015 UPDATED -
- 5 -
A2230
AiT Semiconductor Inc.
www.ait-ic.com
AUDIO AMPLIFIER
1.7 WATT AUDIO POWER AMPLIFIER
TYPICAL PERFORMANCE CHARACTERISTICS
1. THDN vs. Frequency
2. THDN vs. Frequency
VDD=5V RL=8Ω PO=500mW
VDD=3V RL=8Ω PO=250mW
3. THDN vs. Output Power
4. THDN vs. Output Power
VDD=5V RL=8Ω F=1KHz
VDD=3V RL=8Ω F=1KHz
REV2.0
- DEC 2010 RELEASED, DEC 2015 UPDATED -
- 6 -
A2230
AiT Semiconductor Inc.
www.ait-ic.com
AUDIO AMPLIFIER
1.7 WATT AUDIO POWER AMPLIFIER
5. THDN vs. Output Power
6. PSRR vs. Frequency
VDD=5V RL=4Ω F=1KHz
VDD=5V RL=8Ω
7. PSRR vs. Frequency
8. Noise Floor 20KBW
VDD=3V RL=8Ω
VDD=5V RL=8Ω
REV2.0
- DEC 2010 RELEASED, DEC 2015 UPDATED -
- 7 -
A2230
AiT Semiconductor Inc.
www.ait-ic.com
AUDIO AMPLIFIER
1.7 WATT AUDIO POWER AMPLIFIER
PACKAGE INFORMATION
Dimension in SOP8 (Unit: mm)
Symbol
Min
-
Max
1.77
0.28
1.60
0.75
0.48
0.43
0.26
0.21
5.10
6.20
4.10
A
A1
A2
A3
b
0.08
1.20
0.55
0.39
0.38
0.21
0.19
4.70
5.80
3.70
b1
c
c1
D
E
E1
e
1.270(BSC)
L
0.50
0.80
L1
θ
1.050(BSC)
0°
8°
REV2.0
- DEC 2010 RELEASED, DEC 2015 UPDATED -
- 8 -
A2230
AiT Semiconductor Inc.
www.ait-ic.com
AUDIO AMPLIFIER
1.7 WATT AUDIO POWER AMPLIFIER
IMPORTANT NOTICE
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.
death, personal injury, or servere property, or environmental damage.
As used herein may involve potential risks of
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
- DEC 2010 RELEASED, DEC 2015 UPDATED -
- 9 -
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