SSM2377 Datasheet, PDF (10/16 Pages) Analog Devices – Filterless, High Efficiency, Mono 2.5 W Class-D Audio Amplifier Pop-and-click suppression

SSM2377
2.0
1.8
f = 1kHz
GAIN = 6dB
1.6
R_L = 8Ω + 33µH
1.4
1.2
1.0
THD + N = 10%
0.8
THD + N = 1%
0.6
0.4
0.2
0
2.5
3.0
3.5
4.0
4.5
5.0
SUPPLY VOLTAGE (V)
Figure 21. Maximum Output Power vs. Supply Voltage, RL = 8 Ω, Gain = 6 dB
3.5
f = 1kHz
3.0
GAIN = 6dB
R_L = 4Ω + 15µH
2.5
2.0
THD + N = 10%
1.5
THD + N = 1%
1.0
0.5
0
2.5
3.0
3.5
4.0
4.5
5.0
SUPPLY VOLTAGE (V)
Figure 22. Maximum Output Power vs. Supply Voltage, RL = 4 Ω, Gain = 6 dB
100
V_DD = 2.5V
90
80
V_DD = 3.6V
V_DD = 5V
70
60
50
40
30
20
10
R_L = 8Ω + 33µH
GAIN = 6dB
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
OUTPUT POWER (W)
Figure 23. Efficiency vs. Output Power into 8 Ω, Gain = 6 dB
2.0
1.8
f = 1kHz
GAIN = 12dB
1.6
R_L = 8Ω + 33µH
1.4
1.2
1.0
THD + N = 10%
0.8
THD + N = 1%
0.6
0.4
0.2
0
2.5
3.0
3.5
4.0
4.5
5.0
SUPPLY VOLTAGE (V)
Figure 24. Maximum Output Power vs. Supply Voltage, RL = 8 Ω, Gain = 12 dB
3.5
f = 1kHz
3.0
GAIN = 12dB
R_L = 4Ω + 15µH
2.5
2.0
THD + N = 10%
1.5
THD + N = 1%
1.0
0.5
0
2.5
3.0
3.5
4.0
4.5
5.0
SUPPLY VOLTAGE (V)
Figure 25. Maximum Output Power vs. Supply Voltage, RL = 4 Ω, Gain = 12 dB
100
V_DD = 3.6V
90
V_DD = 2.5V
80
70
V_DD = 5V
60
50
40
30
20
10
R_L = 4Ω + 15µH
GAIN = 6dB
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2
OUTPUT POWER (W)
Figure 26. Efficiency vs. Output Power into 4 Ω, Gain = 6 dB
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