ssm2319 Analog Devices, Inc., ssm2319 Datasheet - Page 9

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ssm2319

Manufacturer Part Number
ssm2319
Description
Filterless, High Efficiency, Mono 3 W Class-d Audio Amplifier
Manufacturer
Analog Devices, Inc.
Datasheet
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

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