Datasheet

0
1
2
3
2.5 3 3.5 4
4.5
5 5.5
SUPPLY VOLTAGE (V)
OUTPUT POWER (W)
THD+N = 1%
THD+N = 10%
0
0.5
1
1.5
2
2.5 3 3.5 4
4.5
5 5.5
SUPPLY VOLTAGE (V)
OUTPUT POWER (W)
THD+N = 1%
THD+N = 10%
0
25
50
75
100
125
150
0 10 20 30 40 50 60 70
OUTPUT POWER (mW)
POWER DISSIPATION (mW)
HPV
DD
= 2.0V
HPV
DD
= 2.5V
P
OUT
= P
OUTL
+ P
OUTR
0
25
50
75
100
125
150
0 10 20 30 40 50 60 70
OUTPUT POWER (mW)
POWER DISSIPATION (mW)
HPV
DD
= 2.0V
HPV
DD
= 2.5V
P
OUT
= P
OUTL
+ P
OUTR
0
100
200
300
400
500
0 500 1000 1500 2000 2500 3000
OUTPUT POWER (mW)
POWER DISSIPATION (mW)
V
DD
= 5V
V
DD
= 3.6V
V
DD
= 3.0V
P
OUT
= P + P
OUTROUTL
0
250
500
750
1000
0 1000 2000 3000 4000
OUTPUT POWER (mW)
POWER DISSIPATION (mW)
V
DD
= 5V
V
DD
= 3.6V
V
DD
= 3.0V
P
OUT
= P + P
OUTROUTL
LM49450
www.ti.com SNAS440D –FEBRUARY 2008–REVISED MAY 2013
Typical Performance Characteristics (continued)
Power Dissipation vs Output Power Power Dissipation vs Output Power
R
L
= 4Ω, f = 1kHz, Speaker Mode R
L
= 8Ω, f = 1kHz, Speaker Mode
Figure 51. Figure 52.
Power Dissipation vs Output Power Power Dissipation vs Output Power
R
L
= 16Ω, f = 1kHz, Headphone Mode R
L
= 32Ω, f = 1kHz, Headphone Mode
Figure 53. Figure 54.
Output Power vs Supply Voltage Output Power vs Supply Voltage
R
L
= 4Ω, f = 1kHz, Speaker Mode R
L
= 8Ω, f = 1kHz, Speaker Mode
Figure 55. Figure 56.
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