Datasheet

AD9269
Rev. 0 | Page 17 of 40
AD9269-20
AVDD = 1.8 V, DRVDD = 1.8 V, maximum sample rate, 2 V p-p differential input, 1.0 V internal reference, AIN = −1.0 dBFS, DCS disabled,
unless otherwise noted.
0
–140
–120
–100
–80
–60
–40
–20
012345678910
AMPLITUDE (dBFS)
FREQUENCY (MHz)
08538-024
20MSPS
9.7MHz @ –1dBFS
SNR = 76.9dB (77.9dBFS)
SFDR = 95.6dBc
Figure 26. AD9269-20 Single-Tone FFT with f
IN
= 9.7 MHz
0
–140
–120
–100
–80
–60
–40
–20
012345678910
AMPLITUDE (dBFS)
FREQUENCY (MHz)
08538-026
20MSPS
30.6MHz @ –1dBFS
SNR = 76.7dB (77.7dBFS)
SFDR = 90.7dBc
Figure 27. AD9269-20 Single-Tone FFT with f
IN
= 30.6 MHz
120
100
80
60
40
20
0
–90 –80 –70 –60 –50 –40 –30 –20 –10 0
INPUT AMPLITUDE (dBFS)
SNR/SFDR (dBc/dBFS)
08538-058
SFDRFS
SNRFS
SFDR (dBc)
SNR (dBc)
Figure 28. AD9269-20 SNR/SFDR vs. Input Amplitude (AIN) with f
IN
= 9.7 MHz