AD9653
Data Sheet
0
0
–15
80MSPS
–15
15MHz AT –1dBFS
SNR = 79.0dB (80.0dBFS)
SFDR = 90.5dBc
–30
–30
–45
–45
–60
–60
–75
–75
2F1 + F2
2F2 + F1
–90
3
–90
F2 – F1
F1 + F2
2F2 – F1
2F1 – F2
+
+
2
4
–105
–120
–105
–120
–135
5
6
–135
0
4
8
12
16
20
24
28
32
36
40
0
6
12
18
24
30
36
42
48
54
60
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 30. Single-Tone 16k FFT with fIN = 15 MHz,
Figure 33. Two-Tone 16k FFT with fIN1 = 70.5 MHz and fIN2 = 72.5 MHz,
f
SAMPLE = 80 MSPS, VREF = 1.3 V
f
SAMPLE = 125 MSPS, VREF = 1.3 V
0
–15
0
–20
80MSPS
15MHz AT –1dBFS
SNR = 76.7dB (77.7dBFS)
SFDR = 82.1dBc
–30
–40
–45
SFDR (dBc)
IMD3 (dBc)
–60
–60
–75
3
–80
–90
+
2
SFDR (dBFS)
IMD3 (dBFS)
5
6
–105
–120
4
–100
–120
–135
0
–90
–70
–50
–30
–10
4
8
12
16
20
24
28
32
36
40
INPUT AMPLITUDE (dBFS)
FREQUENCY (MHz)
Figure 31. Single-Tone 16k FFT with fIN = 64.5 MHz,
SAMPLE = 80 MSPS, VREF = 1.3 V
Figure 34. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with
IN1 = 70.5 MHz and fIN2 = 72.5 MHz, fSAMPLE = 125 MSPS, VREF = 1.3 V
f
f
100
120
100
80
SFDRFS
SFDR (dBc)
90
80
SNRFS
70
60
50
40
30
20
10
0
SNR (dBFS)
60
SFDR
SNR
40
20
0
–20
0
20
40
60
80
100 120 140 160 180 200
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10
0
INPUT FREQUENCY (MHz)
INPUT AMPLITUDE (dBFS)
Figure 32. SNR/SFDR vs. Input Amplitude (AIN), fIN = 9.7 MHz,
SAMPLE = 125 MSPS, VREF = 1.3 V
Figure 35. SNR/SFDR vs. fIN, fSAMPLE = 125 MSPS, Clock Divider = 8, VREF = 1.3 V
f
Rev. 0 | Page 18 of 40
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