A2327
AUDIO AMPLIFIER
AiT Semiconductor Inc.
www.ait-ic.com
2.6W MONO FILTER-FREE CLASS-D
DESCRIPTION
FEATURES
The A2327 is a 2.6W high efficiency filter-free class-D
audio power amplifier that requires only three
external components.
Efficiency With an 8Ω Speaker:
88% @ 400mW
80% @ 100mW
Features like 88% efficiency, −75dB PSRR, and
improved RF-rectification immunity make the A2327
ideal for cellular handsets. In cellular handsets, the
earpiece, speaker phone, and melody ringer can
each be driven by the A2327.
3.8mA Quiescent Current
0.4μA Shutdown Current
Optimized PWM Output Stage Eliminates LC
Output Filter
Internally
Generated
250kHz
Switching
Frequency Eliminates Capacitor and Resistor
Improved PSRR (−75dB) and Wide Supply
Voltage (2.5V to 5.5V) Eliminates Need for a
Voltage Regulator
The A2327 is available in MSOP8, SOP8 and
DFN8 packages.
Fully
Differential Design Reduces
RF
ORDERING INFORMATION
Rectification and Eliminates Bypass Capacitor
Improved CMRR Eliminates Two Input Coupling
Capacitors
Package Type
MSOP8
Part Number
A2327MS8R
MS8
M8
J8
Available in MSOP8, SOP8 and DFN8
Packages
A2327MS8VR
A2327M8R
A2327M8VR
A2327J8R
SOP8
DFN8
Note
APPLICATION
Mobile phone、PDA、MID
MP3/4、PMP
A2327J8VR
Portable electronic devices
V: Halogen free Package
R: Tape & Reel
AiT provides all RoHS products
Suffix “ V “ means Halogen free Package
REV2.1 - NOV 2008 RELEASED, SEP 2016 UPDATED -
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