Datasheet

AD9637 Data Sheet
Rev. A | Page 12 of 40
0
–20
–40
–60
–80
–100
–120
–90 –78 –66 –54 –42 –6–18–30
SFDR/IMD3 (dBc/dBFS)
INPUT AMPLITUDE (dBFS)
IMD3 (dBFS)
10215-011
SFDR (dBc)
SFDR (dBFS)
IMD3 (dBc)
Figure 12. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with
f
IN1
= 30 MHz and f
IN2
= 32 MHz, f
SAMPLE
= 80 MSPS
120
0
SNR/SFDR (dBFS/dBc)
INPUT AMPLITUDE (dBFS)
SFDRFS
SFDR
SNRFS
SNR
0
20
40
60
80
100
–70 –60
–50 –40 –30 –20
–10
10215-012
Figure 13. SNR/SFDR vs. Analog Input Level, f
IN
= 9.7 MHz, f
SAMPLE
= 80 MSPS
105
20
30 40 50 60 70
SNR/SFDR (dBFS/dBc)
SAMPLE FREQUENCY (MSPS)
70
75
80
85
90
95
100
SFDR
SNRFS
80
10215-013
Figure 14. SNR/SFDR vs. Encode, f
IN
= 19.7 MHz
105
70
–40 85
SNR/SFDR (dBFS/dBc)
TEMPERATURE (°C)
75
80
85
90
95
100
–15 10 35 60
SFDR (dBc)
SNR (dBFS)
10215-014
Figure 15. SNR/SFDR vs. Temperature, f
IN
= 9.7 MHz, f
SAMPLE
= 80 MSPS
110
100
0
0 200
SNR/SFDR (dBFS/dBc)
INPUT FREQUENCY (MHz)
70
10
20
30
40
50
60
80
90
100
50 150
SFDR (dBc)
SNR (dBFS)
10215-015
Figure 16. SNR/SFDR vs. f
IN
, f
SAMPLE
= 80 MSPS
20 30 40 50 60 70
80
105
SNR/SFDR (dBFS/dBc)
SAMPLE FREQUENCY (MSPS)
65
70
75
80
85
90
95
100
SFDR
SNRFS
10215-016
Figure 17. SNR/SFDR vs. Encode, f
IN
= 30.5 MHz