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PDF A2212 Data sheet ( Hoja de datos )
| Número de pieza | A2212 | |
| Descripción | 1.2 WATT AUDIO POWER AMPLIFIER | |
| Fabricantes | AiT Semiconductor | |
| Logotipo |  |
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AiT Semiconductor Inc.
www.ait-ic.com
A2212
AUDIO AMPLIFIER
1. 2 WATT AUDIO POWER AMPLIFIER
DESCRIPTION
FEATURES
The A2212 is a Class-AB audio power amplifier
designed for mobile phones and other portable
communication devices. It is capable of delivering
Improved PSRR at 217 Hz 70dB
Power output at 5.0V, 1% THD+N, 8Ω: 1.2W (typ.)
1.2 watts of continuous average power to an
8ΩBTL load with less than 1% distortion (THD+N)
from a 5VDC power supply.
Power output at 3.0V, 1% THD+N, 8Ω: 430mW
(typ.)
Ultra low shutdown current: 0.1uA (typ.)
The A2212 was designed specifically to provide
high quality output power with a minimal amount of 2.2V ~ 5.5V operation
external components. It does not require output Improved circuitry eliminates pop-click noise
coupling capacitors or bootstrap capacitors. And
with ultra low shutdown current, the A2212 is
during turn-on and turn-off transitions
ideally suited for mobile phone and other low Excellent RFI (Radio Frequency Interference)
voltage applications where minimal power
consumption is a primary requirement.
immunity
With special pop-click eliminating circuit, the
A2212 provides perfect pop-click characteristic
during turn-on and turn-off transitions.
No output coupling capacitors, snubber networks
or bootstrap capacitors required
Unity-gain stable
The A2212 is unity-gain stable and can be
configured by external gain-setting resistors.
External gain configuration capability
Available in CSP9 package
The A2212 is available in CSP9 package
APPLICATION
ORDERING INFORMATION
Wireless handsets
Portable electronic devices
PDAs, Handheld computers
Package Type
Part Number
CSP9
A2212G9R
G9
A2212G9VR
Note
R: Tape & Reel
V: Halogen free Package
AiT provides all RoHS products
Suffix “V” means Halogen free Package
TYPICAL APPLICATION
REV1.0 - FEB 2012 RELEASED -
-1-
1 page  
AiT Semiconductor Inc.
www.ait-ic.com
A2212
AUDIO AMPLIFIER
1. 2 WATT AUDIO POWER AMPLIFIER
VDD = 3V
Parameter
Quiescent Power Supply
Current
Shutdown Current
Shutdown Voltage Input High
Shutdown Voltage Input Low
Output Offset Voltage
Total Harmonic
Distortion +Noise
Output Power
Symbol
IDD
ISD
VSDIH
VSDIL
VOS
THD+N
PO
Power Supply Rejection
Ratio
PSRR
Wake-up Time
VDD = 2.6V
Parameter
Quiescent Power Supply
Current
Shutdown Current
Output Offset Voltage
Total Harmonic Distortion
+Noise
Output Power
TWU
Symbol
IDD
ISD
VOS
THD+N
PO
Power Supply Rejection
Ratio
Wake-up Time
REV1.0 - FEB 2012 RELEASED -
PSRR
TWU
Conditions
VIN=0V, 8Ω Load
VIN=0V, No Load
VIN=0V,VSHD=GND,
No Load
Min. Typ. Max. Unit
3.0 7
mA
2.6 6
0.1 2 µA
1.1 V
0.6 V
-50 6
50 mV
PO=0.25WRMS, f=1KHz
0.10
%
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
430
55 70
55 65
84
mW
dB
ms
Conditions
VIN=0V, 8Ω Load
VIN=0V, No Load
VIN=0V,VSHD=GND,
No Load
Po=0.15Wrms,
f=1KHz
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
Min. Typ. Max. Unit
2.7
mA
2.5
0.1 µA
-50 4
50 mV
0.1 %
310 mW
55 71
55 65
80
dB
ms
-5-
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet A2212.PDF ] | |
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