PAM8404 Datasheet, PDF (8/18 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)
QFN 4x4 20-Pin
THD+N vs Frequency
V = _DD 5V, R_L=8Ω, C_IN=1μF,Gain=23dB
30
20
10
5
P_O=1W
2
1
PO=1.3W
% 0.5
0.2
0.1
P_O=0.5W
0.05
0.02
0.01
20
50 100 200
500 1k
2k
Hz
5k 10k 20k
THD+N vs Frequency
V_DD=5V, R_L=4Ω, C = _IN 1μF,Gain=23dB
30
20
10
5
P_O=1W
2
1
%
0.5
P_O=0.5W
0.2
0.1
0.05
0.02
0.01
20
PO =2 W
50 100 200
500 1k
2k
Hz
5k 10k 20k
Frequency Response
V = _DD 5V, R_L=4Ω, C_IN=1μF
+25
+22.5
G0=1G1=1
+20
+17.5
d ₊₁₅
B
r ^+12.5
A ⁺¹⁰
+7.5
+5
+2.5
G0=0 G1=1
G0=1G1=0
G0=0 G1=0
+0
20
50 100 200 500 1k 2k
Hz
5k 10k 20k
Crosstalk vs Frequency
V = _DD 5V, R_L=4Ω, Gain=23dB
-65
TT
-70
-75
-80
-85
R to L
-90
d
B _-95
-100
-105
-110
-115
L to R
-120
20
50 100 200
500 1k
2k
5k
10k 20k
Hz
Power Analog Microelectronics,Inc
www.poweranalog.com
PSSR vs Frequency
Input ac-ground, V = _DD 5V 200mVpp,
+0^{RL=4Ω, CIN=1μF, gain=16dB}
-10
-20
-30
-40
d
-50
R
B
-60
-70
-80
L
-90
-100
20
50 100 200
500 1k
2k
Hz
5k 10 k 20 k
Noise Floor FFT
Inputs ac-ground, V = _DD 5V, C = _IN 1μF, R_L=4Ω,
Gain=23dB
-50
-60
-70
d
B
-80
L
r
-90
A
-100
-110
-120
20
R
50 100 200
500 1k 2k
Hz
5k 10k 20k
03/2009 Rev 1.1
8