Datasheet

0.001
0.01
0.1
1
10
100
10 100 1000 10000 100000
FREQUENCY (Hz)
THD+N (%)
0.001
0.01
0.1
1
10
100
10 100 1000 10000 100000
FREQUENCY (Hz)
THD+N (%)
0.001 0.01 0.1 1 10
OUTPUT POWER (W)
THD+N (%)
V
DD
= 5V
V
DD
= 3.6V
V
DD
= 2.5V
0.01
0.1
1
10
100
0.001 0.01 0.1 1 10
OUTPUT POWER (W)
THD+N (%)
V
DD
= 5V
V
DD
= 3.6V
V
DD
= 2.5V
0.01
0.1
1
10
100
LM4673, LM4673SDBD, LM4673TMBD
SNAS317D –DECEMBER 2005–REVISED MAY 2013 www.ti.com
Typical Performance Characteristics
The performance graphs were taken using the Audio Precision AUX-0025 Switching Amplifier measurement Filter in series
with the LC filter on the demo board.
THD + N vs Output Power THD + N vs Output Power
f = 1kHz, R
L
= 8Ω f = 1kHz, R
L
= 4Ω
Figure 4. Figure 5.
THD + N vs Frequency THD + N vs Frequency
V
DD
= 2.5V, P
OUT
= 100mW, R
L
= 8Ω V
DD
= 3.6V, P
OUT
= 150mW, R
L
= 8Ω
Figure 6. Figure 7.
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