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A2327 Schematic ( PDF Datasheet ) - AiT Semiconductor

Teilenummer A2327
Beschreibung 2.6W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
Hersteller AiT Semiconductor
Logo AiT Semiconductor Logo 




Gesamt 11 Seiten
A2327 Datasheet, Funktion
AiT Semiconductor Inc.
www.ait-ic.com
A2327
POWER AMPLIFIER
2.6W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
DESCRIPTION
FEATURES
The A2327 is a 2.6W high efficiency filter-free class- Efficiency With an 8Ω Speaker:
D audio power amplifier that requires only three
88% @ 400mW
external components.
80% @ 100mW
Features like 88% efficiency, −75dB PSRR, and 3.8mA Quiescent Current
improved RF-rectification immunity make the A2327 0.4μA Shutdown Current
ideal for cellular handsets. In cellular handsets, the Optimized PWM Output Stage Eliminates LC
earpiece, speaker phone, and melody ringer can
Output Filter
each be driven by the A2327.
Internally Generated 250kHz Switching
Frequency Eliminates Capacitor and Resistor
The A2327 is available in MSOP8 and SOP8 Improved PSRR (−75dB) and Wide Supply
packages.
Voltage (2.5V to 5.5V) Eliminates Need for a
Voltage Regulator
ORDERING INFORMATION
Fully Differential Design Reduces RF
Rectification and Eliminates Bypass Capacitor
Package Type
MSOP8
Part Number
MS8
A2327MS8R
A2327MS8VR
Improved CMRR Eliminates Two Input Coupling
Capacitors
Available in MSOP8 and SOP8 Packages
SOP8
A2327M8R
M8
A2327M8VR
Note
V: Halogen free Package
R: Tape & Reel
AiT provides all RoHS products
APPLICATION
Mobile phonePDAMID
MP3/4PMP
Portable electronic devices
Suffix “ V “ means Halogen free Package
REV2.0 - NOV 2008 RELEASED, NOV 2013 UPDATED -
-1-






A2327 Datasheet, Funktion
AiT Semiconductor Inc.
www.ait-ic.com
A2327A
POWER AMPLIFIER
2.6 W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
BLOCK DIAGRAM
150K
NOTE: Total Voltage Gain =Av1 X Av2= 2 X R1
REV2.0 - NOV 2008 RELEASED, NOV 2013 UPDATED -
-6-

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