Datasheet
AD7763 Data Sheet
Rev. B | Page 12 of 32
0
–50
–100
–150
–200
–250
0 50000 150000100000 300000250000200000
05476-009
AMPLITUDE (dB)
FREQUENCY (Hz)
Figure 12. Normal Mode FFT, 100 kHz, −0.5 dB Input Tone, 32× Decimation
0
–50
–100
–150
–200
–250
0 50000 150000100000 300000250000200000
05476-030
AMPLITUDE (dB)
FREQUENCY (Hz)
Figure 13. Normal Mode FFT, 100 kHz, −6 dB Input Tone, 32× Decimation
120
114
116
118
112
110
108
106
064
–6dB
–60dB
–0.5dB
192128 256
05476-036
SNR (dBFS)
DECIMATION RATE (×)
Figure 14. Normal Mode SNR vs. Decimation Rate, 1 kHz Input Tone
0
–50
–100
–150
–200
–250
0 50000 150000100000 300000250000200000
05476-008
AMPLITUDE (dB)
FREQUENCY (Hz)
Figure 15. Low Power FFT, 100 kHz, −0.5 dB Input Tone, 32× Decimation
0
–50
–100
–150
–200
–250
0 50000 150000100000 300000250000200000
05476-029
AMPLITUDE (dB)
FREQUENCY (Hz)
Figure 16. Low Power FFT, 100 kHz, −6 dB Input Tone, 32× Decimation
116
114
112
110
108
106
104
064
–6dB
–60dB
–0.5dB
192128 256
05476-033
SNR (dBFS)
DECIMATION RATE (×)
Figure 17. Low Power SNR vs. Decimation Rate, 1 kHz Input Tone