Datasheet

TPA311
350-mW MONO AUDIO POWER AMPLIFIER
SLOS207C – JANUARY 1998 – REVISED MAY 2003
18
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 42
– Output Noise Voltage – µV
n
f – Frequency – Hz
OUTPUT NOISE VOLTAGE
vs
FREQUENCY
20 1 k 10 k
10
1
100
20 k100
V
O
BTL
V
DD
= 3.3 V
BW = 22 Hz to 22 kHz
R
L
= 32 Ω
C
B
=0.1 µF
A
V
= –1 V/V
V
O+
V(rms)
Figure 43
– Output Noise Voltage – µV
n
f – Frequency – Hz
OUTPUT NOISE VOLTAGE
vs
FREQUENCY
20 1 k 10 k
10
1
100
20 k100
V
DD
= 5 V
BW = 22 Hz to 22 kHz
R
L
= 32 Ω
C
B
=0.1 µF
A
V
= –1 V/V
V
O
BTL
V
O+
V(rms)
Figure 44
P
O
– Output Power – mW
POWER DISSIPATION
vs
OUTPUT POWER
200 4000
180
150
120
90
300
P
D
– Power Dissipation – mW
210
240
270
V
DD
= 3.3 V
R
L
= 8 Ω
BTL
100 300
Figure 45
P
O
– Output Power – mW
POWER DISSIPATION
vs
OUTPUT POWER
60 1200
V
DD
= 3.3 V
SE
24
16
8
0
56
P
D
– Power Dissipation – mW
32
40
48
R
L
= 8 Ω
R
L
= 32 Ω
80
64
72
30 90