Datasheet

LM4670
www.ti.com SNAS240C –DECEMBER 2004–REVISED MAY 2013
Typical Performance Characteristics
(1)
(continued)
THD+N vs Output Power THD+N vs Output Power
R
L
= 15µH + 4Ω + 15µH R
L
= 15µH + 8Ω + 15µH
f = 1kHz, 22kHz BW f = 1kHz, 22kHz BW
Figure 10. Figure 11.
CMRR vs Frequency PSRR vs Frequency
V
DD
= 3.6V, R
L
= 15µH + 8Ω + 15µH V
DD
= 3.6V, R
L
= 15µH + 8Ω + 15µH
V
CM
= 1V
P-P
Sine Wave, 22kHz BW V
CM
= 200mV
P-P
Sine Wave, 22kHz BW
Figure 12. Figure 13.
Efficiency and Power Dissipation Efficiency and Power Dissipation
vs Output Power vs Output Power
R
L
= 15µH + 4Ω + 15µH, f = 1kHz, THD < 2% R
L
= 15µH + 8Ω + 15µH, f = 1kHz, THD < 1%
Figure 14. Figure 15.
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