Transcript
A2230
AiT Semiconductor Inc. www.ait-ic.com
3W MONO CLASS-D AUDIO POWER AMPLIFIER FILTER-FREE AND HIGH CMRR
DESCRIPTION
FEATURES
The A2230 is a bridge-connected audio power
Power Output @10% THD+N & V DD =5V 1KHZ
amplifier capable of delivering typically 3W of
R L =3Ω
3W (TYP)
continuous average power to an 3Ω load with10%
R L =4Ω
2.5W (TYP)
(THD) from a 5V power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the A2230 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is optionally suited for low-power portable systems. The A2230 features an externally controlled, low-power consumption shutdown mode, as well as
THD+N@ 1KHZ 1W 8Ω 0.5%(MAX)
Shutdown current 0.1uA(TYP.)
Supply voltage 2.0V~6.0V
No output coupling capacitors, bootstrap capacitors, or snubber circuits are necessary
Small Outline or DIP packaging
Unity-gain stable
External gain configuration capability
Thermal shutdown protection
Available in PSOP8 package.
an internal thermal shutdown protection mechanism. The unity-gain stable A2230 can be configured by external gain-setting resistors. The A2230 is available in PSOP8 package.
APPLICATION
Portable Computers
Desktop Computers
Low Voltage Audio Systems
ORDERING INFORMATION Package Type PSOP8 Note
Part Number MP8
TYPICAL APPLICATION
A2230MP8R A2230MP8VR
R: Tape & Reel V: Green Package
AiT provides all Pb free products Suffix “ V “ means Green Package
REV1.1
- DEC 2010 RELEASED, MAY 2011 REVISED –
-1-
A2230
AiT Semiconductor Inc. www.ait-ic.com
3W MONO CLASS-D AUDIO POWER AMPLIFIER FILTER-FREE AND HIGH CMRR
PIN DESCIPTION
TOP VIEW
REV1.1
Pin #
Symbol
Functions
1
SDB
2
NC
NC (No internal connection)
3
IN+
Positive Differential Input
4
IN-
Negative Differential Input
5
VO1
Positive BTL output
6
VDD
Power Supply
7
GND
Power Ground
8
VO2
Shutdown Terminal (Low active)
Negative BTL output
- DEC 2010 RELEASED, MAY 2011 REVISED –
-2-
AiT Semiconductor Inc. www.ait-ic.com
A2230
3W MONO CLASS-D AUDIO POWER AMPLIFIER FILTER-FREE AND HIGH CMRR
ABSOLUTE MAXIMUM RATINGS
V DD , Supply Voltage
-0.3V~6.0V
V IN , Input Voltage
-0.3V~V DD +0.3V
Power dissipation
Internally Limited
T J , Junction Temperature T STG , Storage Temperature ESD Susceptibility
150℃ -65℃~150℃ 8000V
Stress beyond above listed “Absolute Maximum Ratings” 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
Temperature Range TMIN ≤ T A ≤ TMAX Supply Voltage
REV1.1
- DEC 2010 RELEASED, MAY 2011 REVISED –
−40°C ≤ T A ≤ 85°C 2.0V ≤ V DD ≤ 6.0V
-3-
A2230
AiT Semiconductor Inc. www.ait-ic.com
3W MONO CLASS-D AUDIO POWER AMPLIFIER FILTER-FREE AND HIGH CMRR
ELECTRICAL CHARACTERISTICS T A = 25°C, V DD = 5V, unless otherwise specified. Symbol V DD I DD I SD
Parameter
Conditions
Min.
Typ.
Max.
Unit
2.0
-
6.0
V
V IN = 0V, I O = 0A
-
6.5
10
mA
V SHUTDOWN = V DD
-
0.1
2
μA
R L =3Ω
-
2.38
-
R L =4Ω
-
2
-
R L =8Ω
-
1.2
-
R L =3Ω
-
3
-
R L =4Ω
-
2.5
-
R L =8Ω
-
1.5
-
R L =4Ω, P O =1.6W
-
0.13
-
R L =8Ω, P O =1W
-
0.25
-
Supply voltage Quiescent Power Supply Current Shutdown Current
THD+N = 1%; f = 1 kHz
PO
THD+N
REV1.1
Output Power
Total Harmonic Distortion + Noise
THD+N = 1%; f = 1 kHz
W
AVD=2; 20Hz <= f <= 20kHz
- DEC 2010 RELEASED, MAY 2011 REVISED –
%
-4-
AiT Semiconductor Inc. www.ait-ic.com
A2230
3W MONO CLASS-D AUDIO POWER AMPLIFIER FILTER-FREE AND HIGH CMRR
BLOCK DIAGRAM
REV1.1
- DEC 2010 RELEASED, MAY 2011 REVISED –
-5-
A2230
AiT Semiconductor Inc. www.ait-ic.com
3W MONO CLASS-D AUDIO POWER AMPLIFIER FILTER-FREE AND HIGH CMRR
TYPICAL PERFORMANCE CHARACTERISTICS 1.
THD+N vs Output Power
2.
THD+N vs Frequency
3.
THD+N vs Frequency
4.
THD+N vs Output Power
5.
Power Dissipation vs Output Power
6.
Power Derating Curve
REV1.1
- DEC 2010 RELEASED, MAY 2011 REVISED –
-6-
A2230
AiT Semiconductor Inc. www.ait-ic.com
3W MONO CLASS-D AUDIO POWER AMPLIFIER FILTER-FREE AND HIGH CMRR
7.
THD+N vs Frequency
8.
9.
THD+N vs Frequency
10. THD+N vs Output Power
11. THD+N vs Output Power
REV1.1
- DEC 2010 RELEASED, MAY 2011 REVISED –
THD+N vs Frequency
12. THD+N vs Output Power
-7-
A2230
AiT Semiconductor Inc. www.ait-ic.com
3W MONO CLASS-D AUDIO POWER AMPLIFIER FILTER-FREE AND HIGH CMRR
13. Output Power vs Supply Voltage
14.
Output Power vs Supply Voltage
15. Output Power vs Supply Voltage
16.
Output Power vs Load Resistance
17. Power Dissipation vs Output Power
18.
Power Derating Curve
REV1.1
- DEC 2010 RELEASED, MAY 2011 REVISED –
-8-
A2230
AiT Semiconductor Inc. www.ait-ic.com
3W MONO CLASS-D AUDIO POWER AMPLIFIER FILTER-FREE AND HIGH CMRR
19. Clipping Voltage vs Supply Voltage
20.
Noise Floor
21. Frequency Response vs Input Capacitor Size
22.
Power Supply Rejection Ratio
23. Open Loop Frequency Response
24.
Supply Current vs Supply Voltage
REV1.1
- DEC 2010 RELEASED, MAY 2011 REVISED –
-9-
A2230
AiT Semiconductor Inc. www.ait-ic.com
3W MONO CLASS-D AUDIO POWER AMPLIFIER FILTER-FREE AND HIGH CMRR
PACKAGE INFORMATION Dimension in PSOP8 Package (Unit: mm)
Symbol
Min
Max
A
1.350
1.750
A1
0.050
0.150
A2
1.350
1.550
b
0.330
0.510
c
0.170
0.250
D
4.700
5.100
D1
3.202
3.402
E
3.800
4.000
E1
5.800
6.200
E2
2.313
2.513
e
REV1.1
1.270(BSC)
L
0.400
1.270
θ
0°
8°
- DEC 2010 RELEASED, MAY 2011 REVISED –
- 10 -
A2230
AiT Semiconductor Inc. www.ait-ic.com
3W MONO CLASS-D AUDIO POWER AMPLIFIER FILTER-FREE AND HIGH CMRR
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. such applications is understood to be fully at the risk of the customer. death, personal injury, or servere property, or environmental damage.
Use of AiT products in
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.
REV1.1
- DEC 2010 RELEASED, MAY 2011 REVISED –
- 11 -
