Datasheet

AD9653 Data Sheet
Rev. 0 | Page 18 of 40
Figure 30. Single-Tone 16k FFT with f
IN
= 15 MHz,
f
SAMPLE
= 80 MSPS, V
REF
= 1.3 V
Figure 31. Single-Tone 16k FFT with f
IN
= 64.5 MHz,
f
SAMPLE
= 80 MSPS, V
REF
= 1.3 V
Figure 32. SNR/SFDR vs. Input Amplitude (AIN), f
IN
= 9.7 MHz,
f
SAMPLE
= 125 MSPS, V
REF
= 1.3 V
Figure 33. Two-Tone 16k FFT with f
IN1
= 70.5 MHz and f
IN2
= 72.5 MHz,
f
SAMPLE
= 125 MSPS, V
REF
= 1.3 V
Figure 34. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with
f
IN1
= 70.5 MHz and f
IN2
= 72.5 MHz, f
SAMPLE
= 125 MSPS, V
REF
= 1.3 V
Figure 35. SNR/SFDR vs. f
IN
, f
SAMPLE
= 125 MSPS, Clock Divider = 8, V
REF
= 1.3 V
0
–30
–60
–15
–45
–75
–90
–105
–120
–135
8
+
2
3
1240 16 20 24 28 32 36 40
AMPLITUDE (dBFS)
FREQUENCY (MHz)
80MSPS
15MHz AT –1dBFS
SNR = 79.0dB (80.0dBFS)
SFDR = 90.5dBc
10538-030
6
4
5
0
–30
–60
–15
–45
–75
–90
–105
–120
–135
8
+
2
3
1240 16 20 24 28 32 36 40
AMPLITUDE (dBFS)
FREQUENCY (MHz)
80MSPS
15MHz AT –1dBFS
SNR = 76.7dB (77.7dBFS)
SFDR = 82.1dBc
10538-031
6
4
5
–20
0
20
40
60
80
100
120
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
SNR/SFDR (dBFS/dBc)
INPUT AMPLITUDE (dBFS)
SFDRFS
SNRFS
SFDR
SNR
10538-032
0
–30
–60
–15
–45
–75
–90
–105
–120
–135
0 12
F2 – F1
F1 + F2
+
2F2 + F1
2F1 + F2
2F2 – F1
2F1 – F2
186 24 30 36 42 48 6054
AMPLITUDE (dBFS)
FREQUENCY (MHz)
10538-033
IMD3 (dBc)
–120
–100
–80
–60
–40
–20
0
–90 –70 –50 –30 –10
SFDR/IMD3 (dBc/dBFS)
INPUT AMPLITUDE (dBFS)
IMD3 (dBFS)
SFDR (dBFS)
SFDR (dBc)
10538-034
0
10
20
30
40
50
60
70
80
90
100
0 20 40 60 80 100 120 140 160 180 200
SNR/SFDR (dBFS/dBc)
INPUT FREQUENCY (MHz)
SFDR (dBc)
SNR (dBFS)
10538-035