TPA032D02 Class-D EVM Performance Characteristics
3-23
Details
EVM crosstalk is shown in Figures 3–16 and 3–17. The frequency is swept
from 20 Hz to 20 kHz for a constant 5-W, 7.5-W, and 10-W output. Several
factors affect crosstalk, such as component selection (especially the inductor),
filter layout, grounding, and power supply decoupling.
Figure 3–16. Class-D Amplifier Crosstalk versus Frequency Into 4
Ω
20
100
1k
Crosstalk
–
dB
f – Frequency – Hz
CROSSTALK
vs
FREQUENCY
10k
20k
VDD = 12 V
RL = 4
Ω
TA = 25
°
C
– 20
– 30
–40
– 50
– 70
– 80
– 90
– 60
– 10
– 100
10 W R–L
10 W L–R
7.5 W R–L
7.5 W L–R
Figure 3–17. Class-D Amplifier Crosstalk versus Frequency Into 8
Ω
20
100
1k
Crosstalk
–
dB
f – Frequency – Hz
CROSSTALK
vs
FREQUENCY
10k
20k
VDD = 12 V
RL = 8
Ω
TA = 25
°
C
– 20
– 30
–40
– 50
– 70
– 80
– 90
– 60
– 10
– 100
5 W R–L
5 W L–R
7.5 W R–L
7.5 W L–R
Summary of Contents for TPA032D02
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