Datasheet

10 100 1000 10000 100000
FREQUENCY (Hz)
PSRR (dB)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10 100 1000 10000 100000
FREQUENCY (Hz)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
CMRR(dB)
0
500
1000
1500
2000
2500
3000
3500
4000
2.5 3 3.5 4 4.5 5 5.5
SUPPLY VOLTAGE (V)
OUTPUT POWER (mW)
THD+N = 1%
THD+N = 10%
2.5 3 3.5 4 4.5 5 5.5
SUPPLY VOLTAGE (V)
OUTPUT POWER (mW)
THD+N = 10%
0
250
500
750
1000
1250
1500
1750
2000
THD+N = 1%
LM4673, LM4673SDBD, LM4673TMBD
www.ti.com SNAS317D –DECEMBER 2005–REVISED MAY 2013
Typical Performance Characteristics (continued)
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.
Output Power vs. Supply Voltage Output Power vs. Supply Voltage
R
L
= 4Ω, f = 1kHz R
L
= 8Ω, f = 1kHz
Figure 16. Figure 17.
PSRR vs. Frequency CMRR vs. Frequency
V
DD
= 3.6V ,V
RIPPLE
= 200mV
P-P
, R
L
= 8Ω V
DD
= 3.6V, V
CM
= 1V
P-P
, R
L
= 8Ω
Figure 18. Figure 19.
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