Datasheet

0
10
20
30
40
50
60
70
80
90
100
0 500 1000 1500 2000
OUTPUT POWER (mW)
EFFICIENCY (%)
V
DD
= 5V
V
DD
= 3.6V
V
DD
= 3.0V
0
10
20
30
40
50
60
70
80
90
100
0 500 1000 1500
OUTPUT POWER (mW)
EFFICIENCY (%)
V
DD
= 5V
V
DD
= 3.6V
V
DD
= 3.0V
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10 100 1000 10000 100000
FREQUENCY (Hz)
PSRR (dB)
-120
-100
-80
-60
-40
-20
0
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)
PSRR (dB)
-70
-60
-50
-40
-30
-20
-10
0
10 100 1000 10000 100000
FREQUENCY (Hz)
PSRR (dB)
LM49450
SNAS440D –FEBRUARY 2008–REVISED MAY 2013 www.ti.com
Typical Performance Characteristics (continued)
PSRR vs Frequency PSRR vs Frequency
V
DD
= 3.6V, V
RIPPLE
= 200mV
P-P
, R
L
= 8Ω V
DD
= 3.6V, V
RIPPLE
= 200mV
P-P
, R
L
= 8Ω
DAC Input, External Reference, Speaker Mode Analog Input, Speaker Mode
Figure 45. Figure 46.
PSRR vs Frequency PSRR vs Frequency
HPV
DD
= 2.5V, V
RIPPLE
= 200mV
P-P
, R
L
= 32Ω HPV
DD
= 2.5V, V
RIPPLE
= 200mV
P-P
, R
L
= 32Ω
DAC Input, Internal Reference, Headphone Mode Analog Input, Headphone Mode
Figure 47. Figure 48.
Efficiency vs Output Power Efficiency vs Output Power
R
L
= 4Ω, f = 1kHz, Speaker Mode R
L
= 8Ω, f = 1kHz, Speaker Mode
Figure 49. Figure 50.
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