AD9683 データシートの表示（PDF） - Analog Devices
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AD9683 Datasheet PDF : 44 Pages
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Data Sheet
0
250MSPS
89.12MHz AT –7dBFS
–20
92.12MHz AT –7dBFS
SFDR = 90dBc (97dBFS)
–40
–60
–80
–100
–120
–140
0
25
50
75
100
125
FREQUENCY (MHz)
Figure 29. AD9683-250 Two-Tone FFT with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz,
fS = 250 MSPS
0
250MSPS
184.12MHz AT –7dBFS
–20
187.12MHz AT –7dBFS
SFDR = 87dBc (94dBFS)
–40
–60
–80
–100
–120
–140
0
25
50
75
100
125
FREQUENCY (MHz)
Figure 30. AD9683-250 Two-Tone FFT with
fIN1 = 184.12 MHz, fIN2 = 187.12 MHz, fS = 250 MSPS
AD9683
100
SFDR (dBc)
95
90
85
80
75
SNR (dBFS)
70
40 60 80 100 120 140 160 180 200 220 240
SAMPLE RATE (MSPS)
Figure 31. AD9683-250 Single-Tone SNR/SFDR vs. Sample Rate (fS)
with fIN = 90.1 MHz
700000
600000
500000
581334
520772
2,097,152 TOTAL HITS
1.419 LSB rms
400000
395507
300000
200000
261252
181231
100000
70369
59901
4 161 2316 15633
0
N–7
N–5
N–3
N–1
N+1
7965 658 49
N+3
N+5
OUTPUT CODE
Figure 32. AD9683-250 Grounded Input Histogram
Rev. 0 | Page 17 of 44
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