APA2057A
Typical Operating Characteristics (Cont.)
SupplyCurrent vs. Supply Voltage
Shutdown Current vs. Supply Voltage
20
50
40
30
20
10
0
Amp mode
HP mode
No Load
AMP Mode
18
16
14
12
10
8
No Load
ISD(VDD)
*HP Mode disable
HVDD=3.3V
IHVDD=0.15mA
**AMP Mode disable
VDD=5V
IVDD=12mA
6
4
2
HP Mode
ISD(HVDD)
4.5
Supply Voltage (Volt)
5.5
3.0
3.5
4.0
5.0
3.0
3.5
4.0
4.5
5.0
5.5
Supply Voltage (Volt)
Power Dissipation vs. Output Power
Power Dissipation vs. Output Power
400
350
1.4
RL=16W
1.2
1.0
0.8
0.6
0.4
RL=4W
300
250
200
150
RL=32W
RL=8W
100
50
0
VDD =5V
VDD =5V
THD+N <1%
AMP mode
HVDD=3.3V
THD+N <1%
HP mode
0.2
0.0
2.0
150
200
1.0
1.5
0
50
100
0.0
0.5
Output Power (W)
Output Power (mW)
Output Power vs Load Resistance &
Charge Pump Capacitance
VDD =5V
Output Power vs Load Resistance
300
250
350
300
250
200
150
100
VDD =5V
HVDD=3.3V
Fin=1KHz
BW<80KHZ
CF=CCO=2.2mF
THD+D=1%; Mono
& Stereo, in phase
Fin=1KHz
BW<80KHZ
HP mode
HP mode
Mono,
THD+N=10%
200
150
100
50
CF=CCO=1mF
THD+N=1%; Mono
Mono,
THD+N=1%
CF=CCO=1mF
THD+N=1%; Stereo, in phase
50
0
CF :Charge pump flying capacitor
CCO:Charge pump output capacitor
0
10
100
1000
10 20 30 40 50
60 70 80 90 100
Load Resistance (W)
Load Resistance (W)
Copyright ã ANPEC Electronics Corp.
16
www.anpec.com.tw
Rev. A.1 - Aug., 2007
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
