PAM8303D
Ultra Low EMI, 3W Filterless
Mono Class-D Audio Power Amplifier
Typical Operating Characteristics
1. Efficiency VS Output Power
100
90
80
Efficiency (%)
Efficiency (%)
100
90
80
T
A
=25 ° C, V
DD
=5V, f=1kHz, Gain=2V/V, unless otherwise noted
.
2. Efficiency VS Output Power
70
60
50
40
30
20
10
0
0
V
DD
=5V
V
DD
=3.6V
70
60
50
40
30
20
V
DD
=5V
V
DD
=3.6V
R
L
=8 Ω
0.5
1
Output Pow er (W)
1.5
2
10
0
0
0.5
1
1.5
2
Output Pow er (W)
R
L
=4 Ω
2.5
3
Audio Precision
3. THD+N VS Output Power
30
20
10
5
4. THD+N VS Output Power
30
20
10
R
L
=8 Ω
BW=22Hz ~22kHz
R
L
=4 Ω
BW=22Hz ~22kHz
V
DD
=3.6V
V
DD
=3.2V
%
5
V
DD
=3.6V
%
2
1
0.5
0.2
0.1
30m
2
V
DD
=3.2V
1
0.5
0.2
0.1
10m
V
DD
=5.0V
50m
100m
200m
W
500m
1
2
3
V
DD
=5.0V
20m
50m
100m
200m
W
500m
1
2
4
Power Analog Microelectronics
,
Inc
www.poweranalog.com
09/2008 Rev 1.4
7
PAM [ POWER ANALOG MICOELECTRONICS ]
