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6.4 FFT Spectrum With –60 dBFS Tone
-150
0
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0 22k2k 4k 6k 8k 10k 12k 14k 16k 18k 20k
f-Frequency-Hz
Amplitude-dB
0 22k2k 4k 6k 8k 10k 12k 14k 16k 18k 20k
-150
0
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
f-Frequency-Hz
Amplitude-dBr
DRV601EVM2 Performance
Reference voltage is 2 V
rms
. FFT size is 16k.
Figure 12. FFT Spectrum With –60-dBFS Tone (Analog Input)
Figure 13. FFT Spectrum With –60-dBFS Tone (Digital Input)
SLOU217 – March 2008 DRV601EVM2 13
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