APA2178 Ver la hoja de datos (PDF) - Anpec Electronics
Número de pieza
componentes Descripción
Fabricante
APA2178 Datasheet PDF : 30 Pages
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APA2178
Typical Operating Characteristics (Cont.)
Power Dissipation vs. Output Power
300
250
RL=16Ω
200
150
100
50
0
0
RL=32Ω
VDD=4.5V
fin=1kHz
Cin=1µF
Mono
50 100 150 200 250 300 350 400
Output Power (mW)
Power Dissipation vs. Output Power
50
40
30
20
RL=32Ω
10
VDD=1.8V
fin=1kHz
Cin=1µF
0
Mono
0 10 20 30 40 50 60
Output Power (mW)
Output Power vs. Load Resistance &
Charge Pump Capacitance
CCCCPPFO：：CChhaarrggee
Pump
Pump
flying capacitor
output capacitor
80 CCPF=CCPO=2.2µF CCPF=CCPO=1µF
CCPF=CCPO=0.68µF
60
CCPF=CCPO
=0.47µF
40 VDD=3.3V
fin=1kHz
20
Cin=1µF
BW<80kHz
THD+N=10%
0 Stereo, in Phase
10
100
1000
Load Resistance (Ω)
Copyright © ANPEC Electronics Corp.
17
Rev. A.3 - Jul., 2009
Power Dissipation vs. Output Power
175
150
RL=16Ω
125
100
75
RL=32Ω
50
VDD=3.3V
25
fin=1kHz
Cin=1µF
0
Mono
0 25 50 75 100 125 150 175 200
Output Power (mW)
Output Power vs. Load Resistance
200
Mono
VDD=3.3V
THD+N=10%
fin=1kHz
150
Mono
Cin=1µF
THD+N=1% BW<80kHz
Stereo, in Phase
THD+N=10%
100
50
Stereo, in Phase
THD+N=1%
0
10
100
Load Resistance (Ω)
1000
Charge Pump Output Resistance
vs. Supply Voltage
15
12
9
6
3
0
1.8 2.1 2.4 2.7 3.0 3.3 3.6 3.9 4.2 4.5
Supply Voltage (V)
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