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10
0
−20
−30
20
30
f − Frequency − kHz
80
−10
180°
−180°
Phase
60°
−60°
Open-Loop Gain − dB
Phase
1
10
1
10
2
10
3
10
4
50
40
60
70
140°
100°
20°
20°
−100°
−140°
V
DD
= 3.3 V
R
L
= Open
BTL
Gain
10
0
−20
−30
1
20
30
f − Frequency − kHz
80
−10
Gain
Phase
Open-Loop Gain − dB
10
1
10
2
10
3
10
4
50
40
60
70
V
DD
= 5 V
R
L
= Open
BTL
180°
−180°
60°
−60°
Phase
140°
100°
20°
20°
−100°
−140°
TPA721
SLOS231E NOVEMBER 1998 REVISED JUNE 2004
TYPICAL CHARACTERISTICS (continued)
OPEN-LOOP GAIN AND PHASE
vs
FREQUENCY
Figure 15.
OPEN-LOOP GAIN AND PHASE
vs
FREQUENCY
Figure 16.
9