ssm2319 Analog Devices, Inc., ssm2319 Datasheet - Page 9
ssm2319
Manufacturer Part Number
ssm2319
Description
Filterless, High Efficiency, Mono 3 W Class-d Audio Amplifier
Manufacturer
Analog Devices, Inc.
Datasheet
1.SSM2319.pdf
(20 pages)
3.7
3.5
3.3
3.1
2.9
2.7
2.5
2.3
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
2.5
2.5
2.5
Figure 16. Maximum Output Power vs. Supply Voltage,
Figure 17. Maximum Output Power vs. Supply Voltage,
Figure 15. Supply Current vs. Supply Voltage
R
3.0
L
3.0
3.0
= 4Ω + 33µH
R
R
CONTINUOUS OUTPUT POWER
CONTINUOUS OUTPUT POWER
L
L
= 3 Ω + 33 μH, Gain = 12 dB
= 4 Ω + 33 μH, Gain = 12 dB
NO LOAD
3.5
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
DO NOT EXCEED 3W
DO NOT EXCEED 3W
3.5
3.5
R
1%
10%
L
10%
1%
= 3Ω + 33µH
4.0
4.0
4.0
R
4.5
L
= 8Ω + 33µH
R
GAIN = 12dB
f = 1kHz
R
GAIN = 12dB
f = 1kHz
L
L
4.5
4.5
= 3Ω + 33µH
= 4Ω + 33µH
5.0
5.0
5.0
5.5
Rev. 0 | Page 9 of 20
100
100
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
Figure 19. Efficiency vs. Output Power into R
Figure 20. Efficiency vs. Output Power into R
2.5
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
V
R
GAIN = 12dB
f = 1kHz
Figure 18. Maximum Output Power vs. Supply Voltage,
DD
L
= 8Ω + 33µH
0.2
= 2.5V
V
DD
= 3.6V
V
3.0
0.4
DD
R
= 2.5V
L
= 8 Ω + 33 μH, Gain = 12 dB
0.6
SUPPLY VOLTAGE (V)
OUTPUT POWER (W)
OUTPUT POWER (W)
3.5
0.8
10%
1.0
V
1%
DD
= 3.6V
V
4.0
DD
1.2
= 5V
1.4
V
L
L
R
DD
R
= 8 Ω + 33 μH
= 4 Ω + 33 μH
L
L
4.5
1.6
= 8Ω + 33µH
= 5V
= 4Ω + 33µH
SSM2319
1.8
5.0
2.0