
SSM2311
Rev. 0 | Page 8 of 20
100
0.001
10
100k
FREQUENCY (Hz)
T
HD
+
N
(
%
)
100
1k
10k
0.01
0.1
1
10
VDD = 2.5V
GAIN = 18dB
RL = 8, 33H
0.125W
0.075W
0.25W
06
16
1-
0
39
Figure 15. THD + N vs. Frequency, VDD = 2.5 V, RL = 8 Ω, AV = 18 dB
100
0.001
10
100k
FREQUENCY (Hz)
T
HD
+
N
(
%
)
100
1k
10k
0.01
0.1
1
10
VDD = 2.5V
GAIN = 18dB
RL = 4, 33H
0.125W
0.25W
0.5W
06
16
1-
0
40
Figure 16. THD + N vs. Frequency, VDD = 2.5 V, RL = 4 Ω, AV = 18 dB
100
0.001
10
100k
FREQUENCY (Hz)
T
HD
+
N
(
%
)
100
1k
10k
0.01
0.1
1
10
VDD = 2.5V
GAIN = 18dB
RL = 3, 33H
0.75W
0.38W
0.2W
06
16
1-
0
41
Figure 17. THD + N vs. Frequency, VDD = 2.5 V, RL = 3 Ω, AV = 18 dB
5.2
5.0
4.8
4.6
4.4
4.2
4.0
3.8
3.9
3.4
3.2
2.5
5.5
SUPPLY VOLTAGE (V)
S
UP
P
L
Y
CURRE
NT
(
m
A)
3.0
3.5
4.0
4.5
5.0
06
16
1-
04
2
NO LOAD
Figure 18. Supply Current vs. Supply Voltage, No Load
12
0
00
SHUTDOWN VOLTAGE (V)
S
HU
T
DO
W
N
CU
RRE
NT
(m
A)
.8
10
8
6
4
2
0.10.20.30.40.50.60.7
VDD = 2.5V
VDD = 5V
VDD = 3.6V
06
16
1-
0
43
Figure 19. Shutdown Current vs. Shutdown Voltage
2.0
0
2.5
5.0
SUPPLY VOLTAGE (V)
O
UT
P
UT
P
O
W
E
R
(
W
)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
3.0
3.5
4.0
4.5
f = 1kHz
GAIN = 18dB
RL = 8, 33H
10%
1%
06
16
1-
0
44
Figure 20. Maximum Output Power vs. Supply Voltage, RL = 8 Ω, AV = 18 dB