Datasheet

AD9648
Rev. 0 | Page 19 of 44
TYPICAL PERFORMANCE CHARACTERISTICS
AD9648-125
AVDD = 1.8 V, DRVDD = 1.8 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.0 V internal reference, and DCS enabled, unless
otherwise noted.
–120
–100
–80
–60
–40
–20
0
0 10 20 30 40 6050
AMPLITUDE (dBFS)
FREQUENCY (MHz)
125MSPS
9.7MHz AT –1dBFS
SNR = 74.4dB (75.4dBFS)
SFDR = 95.4dBc
09975-014
Figure 9. Single-Tone FFT with f
IN
= 9.7 MHz
–120
–100
–80
–60
–40
–20
0
0 10 20 30 40 50 60
AMPLITUDE (dBFS)
FREQUENCY (MHz)
125MSPS
30.5MHz AT –1dBFS
SNR = 74.0dB (75.0dBFS)
SFDR = 86.0dBc
09975-022
Figure 10. Single-Tone FFT with f
IN
= 30.5 MHz
–120
–100
–80
–60
–40
–20
0
0 10 20 30 40 50 60
AMPLITUDE (dBFS)
FREQUENCY (MHz)
125MSPS
70.1MHz AT –1dBFS
SNR = 73.8dB (74.8dBFS)
SFDR = 95.8dBc
09975-023
Figure 11. Single-Tone FFT with f
IN
= 70.1 MHz
–120
–100
–80
–60
–40
–20
0
0 10 20 30 40 50 60
AMPLITUDE (dBFS)
FREQUENCY (MHz)
125MSPS
100.5MHz AT –1dBFS
SNR = 73.3dB (74.3dBFS)
SFDR = 92.3dBc
09975-024
Figure 12. Single-Tone FFT with f
IN
= 100.5 MHz
–120
–100
–80
–60
–40
–20
0
0 10 20 30 40 50 60
AMPLITUDE (dBFS)
FREQUENCY (MHz)
125MSPS
200.5MHz AT –1dBFS
SNR = 70.9dB (71.9dBFS)
SFDR = 83.6dBc
09975-025
Figure 13. Single-Tone FFT with f
IN
= 200.5 MHz