Specifications

AD9259 Data Sheet
Rev. E | Page 16 of 52
10 252015 3530 4540 50
90
60
70
65
75
85
80
SNR/SFDR (dB)
ENCODE (MSPS)
2V p-p, SNR
2V p-p, SFDR
05965-059
Figure 21. SNR/SFDR vs. Encode, f
IN
= 10.3 MHz, f
SAMPLE
= 50 MSPS
10 252015 3530 4540 50
90
60
70
65
75
85
80
SNR/SFDR (dB)
ENCODE (MSPS)
2V p-p, SNR
2V p-p, SFDR
05965-060
Figure 22. SNR/SFDR vs. Encode, f
IN
= 35 MHz, f
SAMPLE
= 50 MSPS
SNR/SFDR (dB)
ANALOG INPUT LEVEL (dBFS)
0
10
20
30
40
50
60
70
80
90
100
–60 –50 –40 –30 –20 –10 0
f
IN
= 10.3MHz
f
SAMPLE
= 50MSPS
2V p-p, SFDR
2V p-p, SNR
80dB
REFERENCE
05965-066
Figure 23. SNR/SFDR vs. Analog Input Level, f
IN
= 10.3 MHz, f
SAMPLE
= 50 MSPS
SNR/SFDR (dB)
ANALOG INPUT LEVEL (dBFS)
0
10
20
30
40
50
60
70
80
90
100
–60 –50 –40 –30 –20 –10 0
f
IN
= 35MHz
f
SAMPLE
= 50MSPS
2V p-p, SFDR
2V p-p, SNR
80dB
REFERENCE
05965-065
Figure 24. SNR/SFDR vs. Analog Input Level, f
IN
= 35 MHz, f
SAMPLE
= 50 MSPS
AMPLITUDE (dBFS)
–120
0
–20
–40
–60
–80
–100
0 5 10 15 20 25
FREQUENCY (MHz)
AIN1 AND AIN2 = – 7dBFS
SFDR = 87.76dBc
IMD2 = 90.18dBc
IMD3 = 87.27dBc
05965-056
Figure 25. Two-Tone 32k FFT with f
IN1
= 15 MHz and f
IN2
= 16 MHz,
f
SAMPLE
= 50 MSPS
AMPLITUDE (dBFS)
–120
0
–20
–40
–60
–80
–100
0 5 10 15 20 25
FREQUENCY (MHz)
AIN1 AND A
IN2 = –7dBFS
SFDR = 80.37dBc
IMD2 = 79.75dBc
IMD3 = 84.50dBc
05965-055
Figure 26. Two-Tone 32k FFT with f
IN1
= 70 MHz and f
IN2
= 71 MHz,
f
SAMPLE
= 50 MSPS