Datasheet
www.ti.com
R
L
− Load Resistance − Ω
300
200
100
0
16 3224 40 64
800
8
P
48 56
O
− Output Power − mW
400
THD+N = 1%
V
DD
= 5 V
500
600
V
DD
= 3.3 V
700
f − Frequency − Hz
THD+N −Total Harmonic Distortion + Noise − %
A
V
= −2 V/V
V
DD
= 3.3 V
P
O
= 250 mW
R
L
= 8 Ω
20 1k 10k
1
0.01
10
0.1
20k100
A
V
= −20 V/V
A
V
=− 10 V/V
f − Frequency − Hz
THD+N −Total Harmonic Distortion + Noise − %
P
O
= 125 mW
V
DD
= 3.3 V
R
L
= 8 Ω
A
V
= −2 V/V
20 1k 10k
1
0.01
10
0.1
20k100
P
O
= 50 mW
P
O
= 250 mW
TPA321
SLOS312C – JUNE 2000 – REVISED JUNE 2004
OUTPUT POWER
vs
LOAD RESISTANCE
Figure 6.
TOTAL HARMONIC DISTORTION + NOISE TOTAL HARMONIC DISTORTION + NOISE
vs vs
FREQUENCY FREQUENCY
Figure 7. Figure 8.
7