AD7764
0
–25
–50
–75
–100
–125
–150
–175
0
50k
100k
FREQUENCY (Hz)
150k
Figure 12. Normal Power Mode, FFT,1 kHz, −6 dB Input Tone,
64× Decimation Rate
0
–25
–50
–75
–100
–125
–150
–175
0
25k
50k
75k
FREQUENCY (Hz)
Figure 13. Normal Power Mode, FFT,1 kHz, −6 dB Input Tone,
128× Decimation Rate
0
–25
–50
–75
–100
–125
–150
–175
0
5k 10k 15k 20k 25k 30k 35k
FREQUENCY (Hz)
Figure 14. Normal Power Mode, FFT,1 kHz, −6 dB Input Tone,
256× Decimation Rate
0
–25
–50
–75
–100
–125
–150
–175
0
50k
100k
FREQUENCY (Hz)
150k
Figure 15. Low Power Mode, FFT,1 kHz, −6 dB Input Tone,
64× Decimation Rate
0
–25
–50
–75
–100
–125
–150
–175
0
25k
50k
75k
FREQUENCY (Hz)
Figure 16. Low Power Mode, FFT,1 kHz, −6 dB Input Tone,
128× Decimation Rate
0
–25
–50
–75
–100
–125
–150
–175
0
5k 10k 15k 20k 25k 30k 35k
FREQUENCY (Hz)
Figure 17. Low Power Mode, FFT,1 kHz, −6 dB Input Tone,
256× Decimation Rate
Rev. 0 | Page 12 of 32