Datasheet

20
100 1k 10k 20k
FREQUENCY (Hz)
0.01
0.1
1
10
THD+N (%)
10m
100m 1 3
OUTPUT POWER (W)
0.01
0.1
1
10
THD+N (%)
20
100 1k 10k 20k
FREQUENCY (Hz)
0.01
0.1
1
10
THD+N (%)
20
100 1k 10k 20k
FREQUENCY (Hz)
0.01
0.1
1
10
THD+N (%)
20
100 1k 10k 20k
FREQUENCY (Hz)
0.01
0.1
1
10
THD+N (%)
20
100 1k 10k 20k
FREQUENCY (Hz)
0.01
0.1
1
10
THD+N (%)
LM4990
www.ti.com SNAS184E –DECEMBER 2002–REVISED MAY 2013
Typical Performance Characteristics
THD+N+N vs Frequency THD+N+N vs Frequency
V
DD
= 5V, R
L
= 8Ω, and P
O
= 500mW V
DD
= 3V, R
L
= 4Ω, and P
O
= 500mW
Figure 9. Figure 10.
THD+N+N vs Frequency THD+N+N vs Frequency
V
DD
= 3V, R
L
= 8Ω, and P
O
= 250mW V
DD
= 2.6V, R
L
= 4Ω, and P
O
= 150mW
Figure 11. Figure 12.
THD+N+N vs Output Power THD+N+N vs Output Power
V
DD
= 2.6V, R
L
= 8Ω, and P
O
= 150mW V
DD
= 5V, R
L
= 8Ω, and f = 1kHz
Figure 13. Figure 14.
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