Datasheet

AD9204
Rev. 0 | Page 16 of 36
10
AD9204-20
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
–20
–40
–60
–80
–100
–120
20468
FREQUENCY (MHz)
AMPLITUDE (dB)
08122-024
20MSPS
9.7MHz @ –1dBFS
SNR = 60.6dBFS (61.6dBFS)
SFDR = 81.3dBc
Figure 26. AD9204-20 Single-Tone FFT with f
IN
= 9.7 MHz
0
–20
–40
–60
–80
–100
–120
2046810
FREQUENCY (MHz)
AMPLITUDE (dB)
08122-026
20MSPS
30.5MHz @ –1dBFS
SNR = 60.6dBFS (61.6dBFS)
SFDR = 84.0dBc
Figure 27. AD9204-20 Single-Tone FFT with f
IN
= 30.5 MHz
90
80
60
40
20
10
0
70
50
30
–60 –50 –40 –30 –20
–10
0
INPUT AMPLITUDE (dBc)
SNR/SFDR (dBc/dBFS)
08122-058
SFDR (dBFS)
SNR (dBFS)
SFDR (dBc)
SNR (dBc)
Figure 28. AD9204-20 SNR/SFDR vs. Input Amplitude (AIN) with f
IN
= 9.7MHz