SSM2377 Datasheet, PDF (11/16 Pages) Analog Devices – Filterless, High Efficiency, Mono 2.5 W Class-D Audio Amplifier Pop-and-click suppression

500
450
R_L = 8Ω + 33µH
GAIN = 6dB
400
350
V_DD = 3.6V
V_DD = 5V
300
250
V_DD = 2.5V
200
150
100
50
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 27. Supply Current vs. Output Power into 8 Ω, Gain = 6 dB
0
–10
V_DD = 5V
R_L = 8Ω + 33µH
–20
–30
–40
–50
GAIN = 12dB
–60
GAIN = 6dB
–70
–80
–90
–100
10
100
1k
10k
100k
FREQUENCY (Hz)
Figure 28. Common-Mode Rejection Ratio (CMRR) vs. Frequency
7
6
SD INPUT
5
4
3
2
OUTPUT
1
0
–1
–8 –4
0 4 8 12 16 20 24 28 32 36
TIME (ms)
Figure 29. Turn-On Response
SSM2377
600
R_L = 4Ω + 15µH
GAIN = 6dB
500
V_DD = 3.6V
V_DD = 5V
400
V_DD = 2.5V
300
200
100
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 30. Supply Current vs. Output Power into 4 Ω, Gain = 6 dB
0
V_DD = 5V
–10 R_L = 8Ω + 33µH
–20
–30
–40
–50
–60
–70
GAIN = 12dB
GAIN = 6dB
–80
–90
10
100
1k
10k
FREQUENCY (Hz)
100k
Figure 31. Power Supply Rejection Ratio (PSRR) vs. Frequency
7
6
SD INPUT
OUTPUT
5
4
3
2
1
0
–50
–30
–10
10
30
50
70
TIME (µs)
Figure 32. Turn-Off Response
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