APA2057A
Typical Operating Characteristics (Cont.)
Input Voltage vs. Output Voltage
Input Voltage vs. Output Voltage
3
3
VDD =5V
VDD =5V
HVDD=3.3V
RL=300W
HVDD=3.3V
RL=10KW
Rin=39KW
Cin=3mF
Fin=1KHz
HP mode
Mono
2.5
2.5
2
Rin=39KW
Cin=3mF
Stereo,
Fin=1KHz
in phase
2
1.5
1
HP mode
Mono &
Stereo, in phase
1.5
1
0.5
0
0.5
0
3
0
0.5
1
1.5
2
2.5
0
0.5
1
1.5
2
2.5
3
Input Voltage (Vrms)
Input Voltage (Vrms)
PSRR vs. Frequency
PSRR vs. Frequency
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
+0
VDD =5V
RL=8W
Cin=2.2mF
Vrr=200mVrms
AMP mode
VDD=5V
RL=4W
Cin=2.2mF
Vrr=200mVrms
AMP mode
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
Right channel
Left channel
Right channel
Left channel
Vrr: Ripple Voltage on VDD
Vrr: Ripple Voltage on VDD
-100
20
100
1k
20k
20k
10k
10k
20
100
1k
Frequency (Hz)
Frequency (Hz)
PSRR vs. Frequency
PSRR vs. Frequency
+0
+0
VDD =5V
VDD =5V
HVDD=3.3V
RL=32W
Rin=39KW
Cin=3.3mF
Vrr=200mVrms
HP mode
HVDD=3.3V
RL=10KW
Rin=39KW
Cin=3.3mF
Vrr=200mVrms
HP mode
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
Left channel
Left channel
Right channel
100
Vrr: Ripple Voltage on HVDD
1k 10k 20k
Vrr: Ripple Voltage on HVDD
Right channel
100
20
20
1k
10k
20k
Frequency (Hz)
Frequency (Hz)
Copyright ã ANPEC Electronics Corp.
15
www.anpec.com.tw
Rev. A.1 - Aug., 2007
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
