ssm2317 Analog Devices, Inc., ssm2317 Datasheet - Page 9

• Manufacturer Part Number: ssm2317
• Description: Filterless High Efficiency Mono 3 W Class-d Audio Amplifier
• Manufacturer: Analog Devices, Inc.

4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
2.8
2.6
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
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,
FREQUENCY = 1kHz
GAIN = 18dB
R
FREQUENCY = 1kHz
GAIN = 18dB
R
L
L
= 8Ω + 33µH
= 4Ω + 33µH
Figure 15. Supply Current vs. Supply Voltage
3.0
3.0
3.0
R
R
L
L
3.5
= 8 Ω + 33 μH, Gain = 18 dB
= 4 Ω + 33 μH, Gain = 18 dB
CONTINUOUS OUTPUT POWER
R
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
L
= 4Ω + 33µH
DO NOT EXCEED 3W
3.5
3.5
4.0
10%
10%
1%
1%
R
L
= 8Ω + 33µH
4.5
4.0
4.0
NO LOAD
5.0
4.5
4.5
5.5
6.0
5.0
5.0
Rev. A | Page 9 of 20
100
100
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
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 3.2
Figure 19. Efficiency vs. Output Power into 8 Ω + 33 μH
Figure 20. Efficiency vs. Output Power into 4 Ω + 33 μH
V
Figure 18. Maximum Output Power vs. Supply Voltage,
FREQUENCY = 1kHz
GAIN = 18dB
R
DD
L
= 3Ω + 33µH
V
V
= 2.5V
0.2
DD
DD
= 3.6V
= 2.5V
3.0
R
0.4
L
= 3 Ω + 33 μH, Gain = 18 dB
CONTINUOUS OUTPUT POWER
SUPPLY VOLTAGE (V)
OUTPUT POWER (W)
OUTPUT POWER (W)
V
0.6
DO NOT EXCEED 3W
DD
3.5
= 3.6V
V
10%
DD
0.8
= 5V
1%
V
4.0
DD
1.0
= 5V
1.2
R
R
L
L
= 4Ω + 33µH
4.5
= 8Ω + 33µH
SSM2317
1.4
1.6
5.0