PAM8404 Datasheet, PDF (11/18 Pages) Power Analog Micoelectronics – 3W/CH Filterless Stereo Class-D Audio Amplifier

PAM8404
3W/CH Filterless Stereo Class-D Audio Amplifier
Typical Operating Characteristics (T_A=25°C)
WCPS 2x2-16
THD+N vs Frequency
V = _DD 5V, R_L=8Ω, C_IN=1μF, Gain=23dB
30
20
10
5
P_O=1.2W
2
PO=1 W
1
% 0.5
0.2
0.1
P_O=0.5W
0. 0 5
0. 0 2
0. 0 1
20
50 100 200
500 1k
2k
5k
Hz
10k 20k
THD+N vs Frequency
V_DD=5V, R_L=4Ω, C = _IN 1μF, Gain=23dB
30
20
10
5
2
PO=1.8W
1
% 0.5
0. 2
0. 1
0. 0 5
0. 0 2
0. 0 1
20
P_O=1.2W
P_O=0.5W
50 100 200
500 1k
2k
Hz
5k 10k 20k
Frequency Response
V = _DD 5V, R_L=4Ω, C_IN=1μF
+25
+22.5
+20
+17.5
d
B
+15
r _+12.5
A +10
+7.5
+5
+2.5
+0
20
G0=1 G1=1
G0=0 G1=1
G0=1 G1=0
G0=0 G1=0
50 100 200
500 1k
2k
Hz
5k 10k 20k
Crosstalk vs Frequency
V = _DD 5V, R_L=4Ω, Gain=23dB
-50
-55
-60
R to L
-65
-70
d
-75
B
-80
-85
L to R
-90
-95
-100
20
50
100 200
500
1k
2k
Hz
5k
10k 20k
Power Analog Microelectronics,Inc
www.poweranalog.com
PSSR vs Frequency
Input ac-ground, V = _DD 5V 200mVpp,
R
+0
L⁼
4
Ω
,
C_IN=1μF,
gain=5dB
-10
-20
-30
R
-40
d
-50
B
-60
-70
L
-80
-90
-100
20
50 100 200
500 1k
2k
5k
Hz
10k 20k
Noise Floor FFT
Inputs ac-ground, V = _DD 5V, C = _IN 1μF, R_L=4Ω,
Gain=23dB
-50
-60
-70
R
-80
d
B
r
-90
A
-100
-110
-120
L
-130
20
50
100 200
500
1k
2k
Hz
5k
10k 20k
03/2009 Rev 1.1
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