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A2212 Schematic ( PDF Datasheet ) - AiT Semiconductor

Teilenummer A2212
Beschreibung 1.2 WATT AUDIO POWER AMPLIFIER
Hersteller AiT Semiconductor
Logo AiT Semiconductor Logo 




Gesamt 10 Seiten
A2212 Datasheet, Funktion
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 Vmeans Halogen free Package
TYPICAL APPLICATION
REV1.0 - FEB 2012 RELEASED -
-1-






A2212 Datasheet, Funktion
AiT Semiconductor Inc.
www.ait-ic.com
A2212
AUDIO AMPLIFIER
1. 2 WATT AUDIO POWER AMPLIFIER
TYPICAL PERFORMANCE CHARACTERISTICS
1. THD+N vs. Frequency
VDD=5V,RL=8Ω,and PO=500mW
2. THD+N vs. Frequency
VDD=3V,RL=8Ω, and PO=250mW
3. PSRR vs. Frequency
VDD=5V, RL=8Ω,RIN=10Ω
4. PSRR vs. Frequency
VDD=5V, RL=8Ω,RIN=Float
5. PSRR vs. Frequency
VDD=3V, RL=8Ω,RIN=10Ω
6. PSRR vs. Frequency
VDD=3V, RL=8Ω,RIN=Float
REV1.0 - FEB 2012 RELEASED -
-6-

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