Datasheet
6.3 FFT Spectrum with –60dBFS Tone
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dBrA(dB)
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Frequency(kHz)
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dBrA(dB)
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Frequency(kHz)
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For the FFT plot shown in Figure 8 , the reference voltage is 3 V
RMS
and the FFT size is 16 k.
Figure 8. FFT Spectrum with –60-dBFS Tone (Analog Input)
For the FFT plot shown in Figure 9 , the reference voltage is 2.1 V
RMS
and the FFT size is 16 k.
Figure 9. FFT Spectrum with –60-dBFS Tone (Digital Input)
For both FFT plots, the digital input, noise, and dynamic range are: 7.7 µ V
RMS
, 108.5 dB referenced to 2.1
V
RMS
, A-weighted.
DRV603EVM 10 SLOU252A – December 2008 – Revised January 2009
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