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−40
−20
0
20
40
60
80
100
120
Open-Loop Gain − dB
− Phase Margin − Deg
1 k 10 k 100 k 1 M 10 M
−180
−150
−120
−90
−60
−30
0
30
60
90
120
150
180
f − Frequency − Hz
Phase
Gain
V
DD
= 3.3 V
R
L
= 10 kΩ
Φ
m
−40
−20
0
20
40
60
80
100
120
1 k 10 k 100 k 1 M 10 M
−180
−150
−120
−90
−60
−30
0
30
60
90
120
150
180
Open-Loop Gain − dB
f − Frequency − Hz
Phase
Gain
V
DD
= 5 V
R
L
= 10 kΩ
− Phase Margin − DegΦ
m
50
25
0
8 12 16 20 32 36 40
75
100
45 52 56 64
− Output Power − mW
R
L
− Load Resistance − Ω
V
DD
= 3.3 V,
THD+N = 1%,
A
V
= −1 V/V
24 28 44 60
P
O
0
50
100
150
200
250
8 12 16 20 24 28 32 36 40 44 48 52 56 60 64
R
L
− Load Resistance − Ω
V
DD
= 5 V,
THD+N = 1%,
A
V
= −1 V/V
− Output Power − mWP
O
TPA6111A2
SLOS313B – DECEMBER 2000 – REVISED JUNE 2004
OPEN-LOOP GAIN AND PHASE MARGIN OPEN-LOOP GAIN AND PHASE MARGIN
vs vs
FREQUENCY FREQUENCY
Figure 27. Figure 28.
OUTPUT POWER OUTPUT POWER
vs vs
LOAD RESISTANCE LOAD RESISTANCE
Figure 29. Figure 30.
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