Texas Instruments DRV604PWPEVM, User Manual

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0.0001
10
0.0002
0.0005
0.001
0.002
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
100m 3 200m 300m 400m 500m 700m 1 2
V - Voltage - V
RMS
THD+N-T
otalHarmonicDisNoise-%
Load = 10 k
W
1m 100m 2m 5m 10m 20m 50m
Power - W
0.001
10
0.002
0.005
0.01
0.05
0.1
0.2
0.5
1
5
THD+N-T
otalHarmonicDisNoise-%
Load = 32 W
In Phase
Out of Phase
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DRV604PWPEVM Performance
6.1 THD+N vs Voltage and Power
Blue: 10 k Ω
Figure 4. THD+N vs Voltage (Line Output)
The THD+N up to over 1Vrms are dominated by noise. 0.001% equals –100dB !
Blue: 32 Ω
Figure 5. THD+N vs Power (HeadPhone Output)
9 SLOU288 – February 2010 DRV604PWPEVM
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