AD9228
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
F
F
= 35MHz
F
F
= 10.3MHz
IN
SAMPLE
IN
SAMPLE
= 65MSPS
= 40MSPS
2V p-p, SFDR
2V p-p, SFDR
80dB
REFERENCE
2V p-p, SNR
2V p-p, SNR
80dB
REFERENCE
0
–60
–60
–50
–40
–30
–20
–10
0
–50
–40
–30
–20
–10
0
ANALOG INPUT LEVEL (dBFS)
ANALOG INPUT LEVEL (dBFS)
Figure 30. SNR/SFDR vs. Analog Input Level, fIN = 35 MHz, fSAMPLE = 65 MSPS
Figure 27. SNR/SFDR vs. Analog Input Level, fIN = 10.3 MHz, fSAMPLE = 40 MSPS
0
100
AIN1 AND AIN2 = –7dBFS
SFDR = 80.75dBc
IMD2 = 85.53dBc
F
F
= 35MHz
IN
SAMPLE
90
80
70
60
50
40
30
20
10
0
= 40MSPS
–20
IMD3 = 80.83dBc
2V p-p, SFDR
–40
–60
–80
80dB
REFERENCE
2V p-p, SNR
–100
–120
0
2
4
6
8
10
12
14
16
18
20
–60
–50
–40
–30
–20
–10
0
FREQUENCY (MHz)
ANALOG INPUT LEVEL (dBFS)
Figure 31. Two-Tone 32k FFT with fIN1 = 15 MHz and fIN2 = 16 MHz,
fSAMPLE = 40 MSPS
Figure 28. SNR/SFDR vs. Analog Input Level, fIN = 35 MHz, fSAMPLE = 40 MSPS
100
0
AIN1 AND AIN2 = –7dBFS
SFDR = 74.76dBc
IMD2 = 81.03dBc
F
F
= 10.3MHz
IN
SAMPLE
90
80
70
60
50
40
30
20
10
0
= 65MSPS
2V p-p, SFDR
–20
IMD3 = 75.00dBc
–40
–60
–80
80dB
REFERENCE
2V p-p, SNR
–100
–120
–60
–50
–40
–30
–20
–10
0
0
2
4
6
8
10
12
14
16
18
20
ANALOG INPUT LEVEL (dBFS)
FREQUENCY (MHz)
Figure 29. SNR/SFDR vs. Analog Input Level, fIN = 10.3 MHz, fSAMPLE = 65 MSPS
Figure 32. Two-Tone 32k FFT with fIN1 = 70 MHz and fIN2 = 71 MHz,
fSAMPLE = 40 MSPS
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