A2432
AUDIO AMPLIFIER
AiT Semiconductor Inc.
www.ait-ic.com
2X3W CLASS-D WITH DC VOLUME CONTROL AND EARPHONE OUTPUT
ELECTRICAL CHARACTERISTICS
VDD =5V, Gain=23.6dB, RL =8Ω, T =25°C, unless otherwise noted.
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
Supply Power
VDD
2.5
5.5
V
VDD=5.0V
VDD=3.6V
VDD=5.0V
VDD=3.6V
VDD=5.0V
VDD=3.6V
VDD=5.0V
VDD=3.6V
f=1kHz
3
1.55
f=1kHz, THD+N=10%, RL=4Ω
f=1kHz, THD+N=10%, RL=8Ω
f=1kHz, THD+N=1%, RL=4Ω
f=1kHz, THD+N=1%, RL=8Ω
1.7
0.9
2.4
1.25
Output Power
PO
W
1.4
0.72
0.02
0.03
0.03
0.03
-60
VDD=5.0V, PO=0.5W, RL=8Ω
VDD=3.6V, PO=0.5W, RL=8Ω
VDD=5.0V, PO=1W, RL=4Ω
VDD=3.6V, PO=1W, RL=4Ω
Total Harmonic
Distortion Plus
Noise
f=1kHz
f=1kHz
THD+N
%
f=1kHz
f=100Hz
f=1kHz
Power Supply
Ripple Rejection
PSRR VDD=4.2V ±200mVP-P, f=1kHz
dB
dB
-65
VDD=5.0V,PO=0.5W,
CS
Crosstalk
f=1kHz
-95
RL=8Ω,GV=23.6dB
Signal/Noise Ratio
Class D Gain
Switching Frequency
SNR
GV
fSW
f=20Hz to 20kHz, THD=1%, RL=8Ω
-76
23.6
400
150
200
-84
dB
dB
kHz
VDD = 2.5V to 5.5V
Inputs ac-grounding with
CIN=0.1μF
VDD=5.0V,THD=1%
VDD=2.5V to 5.5V
VDD=5.0V
350
450
A-weighting
No A- weighting
f=1kHz
Output Noise
VN
μV
Dynamic Range
Shutdown Current
Muting Current
DYN
ISD
IMUTE
dB
μA
VSD=0.3V
20
VMUTE=0.3V
4.6
7.6
6
90
83
mA
VDD=5.0V
12
10
Quiescent Current
Efficiency
IQ
No Load
mA
%
VDD=3.6V
RL=8Ω, PO=1.6W
RL=8Ω, PO=2.8W
η
Output Offset
Voltage
VOS
tst
VIN=0V
No Load
10
mV
setup Time
Over Temperature
Protection
Over Temperature
Hysteresis
Bypass capacitor =1uF
380
160
ms
TOTP
No Load, Junction Temperature VDD=5.0V
℃
TOTH
30
REV1.1
- MAY 2012 RELEASED, MAR 2017 UPDATED -
- 4 -
AITSEMI [ AiT Semiconductor ]
