Datasheet

0.01
0.1
1
10
100
0.001 0.01 0.1
OUTPUT POWER (W)
THD+N (%)
HPV
DD
= 2.5V
HPV
DD
= 2.0V
TWO CHANNELS
IN PHASE
-70
-60
-50
-40
-30
-20
-10
0
10 100 1000
10000
100000
FREQUENCY (Hz)
PSRR (dB)
0.01
0.1
1
10
100
0.001 0.01 0.1
OUTPUT POWER (W)
THD+N (%)
HPV
DD
= 2.5V
HPV
DD
= 2.0V
TWO CHANNELS
IN PHASE
0.01
0.1
1
10
100
0.001 0.01 0.1
OUTPUT POWER (W)
THD+N (%)
HPV
DD
= 2.5V
HPV
DD
= 2.0V
TWO CHANNELS
IN PHASE
0.01
0.1
1
10
100
0.001 0.01 0.1
OUTPUT POWER (W)
THD+N (%)
HPV
DD
= 2.5V
HPV
DD
= 2.0V
TWO CHANNELS
IN PHASE
0.01
0.1
1
10
100
0.001 0.01 0.1
OUTPUT POWER (W)
THD+N (%)
HPV
DD
= 2.5V
HPV
DD
= 2.0V
TWO CHANNELS
IN PHASE
LM49450
www.ti.com SNAS440D –FEBRUARY 2008–REVISED MAY 2013
Typical Performance Characteristics (continued)
THD+N vs Output Power THD+N vs Output Power
A
V
= 9dB, R
L
= 16Ω, f = 1kHz A
V
= 9dB, R
L
= 16Ω, f = 1kHz
DAC Input, Internal Reference, Headphone Mode DAC Input, External Reference, Headphone Mode
Figure 39. Figure 40.
THD+N vs Output Power THD+N vs Output Power
A
V
= 9dB, R
L
= 32Ω, f = 1kHz A
V
= 0dB, R
L
= 16Ω, f = 1kHz
DAC Input, External Reference, Headphone Mode Analog Input, Headphone Mode
Figure 41. Figure 42.
THD+N vs Output Power PSRR vs Frequency
A
V
= 0dB, R
L
= 32Ω, f = 1kHz V
DD
= 3.6V, V
RIPPLE
= 200mV
P-P
, R
L
= 8Ω
Analog Input, Headphone Mode DAC Input, Internal Reference, Speaker Mode
Figure 43. Figure 44.
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