ssm2311 Analog Devices, Inc., ssm2311 Datasheet - Page 10

• Manufacturer Part Number: ssm2311
• Description: Filterless High Efficiency Mono 3 W Class-d Audio Amplifier
• Manufacturer: Analog Devices, Inc.

SSM2311
Figure 29. Power Dissipation vs. Output Power into 8 Ω at V
0.14
0.12
0.10
0.08
0.06
0.04
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
V
V
DD
V
R
DD
0.2
Figure 27. Efficiency vs. Output Power into 4 Ω
Figure 28. Efficiency vs. Output Power into 3 Ω
DD
L
= 2.5V
= 8Ω, 33µH
= 2.5V
= 5V
0.4
V
V
DD
DD
0.6
= 3.6V
= 3.6V
0.8
OUTPUT POWER (W)
OUTPUT POWER (W)
OUTPUT POWER (W)
1.0
1.2
1.4
V
DD
1.6
= 5V
V
DD
R
1.8
R
L
L
= 3Ω, 33µH
= 5V
= 4Ω, 33µH
2.0
2.2
DD
= 5.0 V
2.4
Rev. PrA | Page 10 of 20
Figure 30. Power Dissipation vs. Output Power into 4 Ω at V
Figure 31. Power Dissipation vs. Output Power into 3 Ω at V
Figure 32. Power Dissipation vs. Output Power into 8 Ω at V
0.10
0.08
0.06
0.04
0.02
0.30
0.25
0.20
0.15
0.10
0.05
0.6
0.5
0.4
0.3
0.2
0.1
0
0
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2
0
0
0.2
0.1
0.4
Preliminary Technical Data
0.2
0.6
0.3
OUTPUT POWER (W)
0.8
OUTPUT POWER (W)
OUTPUT POWER (W)
1.0
0.4
1.2
0.5
1.4
0.6
1.6
V
R
V
V
R
R
DD
L
D
DD
L
L
0.7
1.8
D
= 3Ω, 33µH
= 4Ω,
= 8Ω, 3
= 5V
= 3.6V
= 5V
2.0
0.8
33µH
3µH
DD
DD
DD
2.2
= 5.0 V
= 5.0 V
= 3.6 V
0.9