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V
DD
− Supply Voltage − V
20
10
0
3 43.5 4.5
60
5
30
SHUTDOWN = V
DD
RF = 10 kΩ
40
50
5.52.5
I
DD
− Supply Current − Aµ
70
80
90
V
DD
− Supply Voltage − V
600
400
200
0
2.5 3.53 4 5.5
1000
P
4.5 5
O
− Output Power − mW
800
THD+N 1%
f = 1 kHz
BTL
R
L
= 32 Ω
R
L
= 8 Ω
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%
f = 1 kHz
BTL
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
BTL
20 1k 10k
1
0.01
10
0.1
20k100
A
V
= −20 V/V
A
V
= −10 V/V
TPA721
SLOS231E – NOVEMBER 1998 – REVISED JUNE 2004
TYPICAL CHARACTERISTICS (continued)
SUPPLY CURRENT OUTPUT POWER
vs vs
SUPPLY VOLTAGE SUPPLY VOLTAGE
Figure 4. Figure 5.
OUTPUT POWER TOTAL HARMONIC DISTORTION + NOISE
vs vs
LOAD RESISTANCE FREQUENCY
Figure 6. Figure 7.
6