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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AD9683
0
250MSPS
305.1MHz AT –1dBFS
–20
SNR = 67.5dB (68.5dBFS)
SFDR = 85dBc
–40
–60
SECOND HARMONIC
THIRD HARMONIC
–80
–100
–120
–140
0
25
50
75
100
125
FREQUENCY (MHz)
Figure 23. AD9683-250 Single-Tone FFT with fIN = 305.1 MHz
120
SFDR (dBFS)
100
80
SNR (dBFS)
60
SFDR (dBc)
40
SNR (dBc)
20
0
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
INPUT AMPLITUDE (dBFS)
Figure 24. AD9683-250 Single-Tone SNR/SFDR vs. Input Amplitude (AIN)
with fIN = 185.1 MHz
100
95
SFDR (dBc)
90
85
80
75
SNR (dBFS)
70
65
60
10 45 80 115 150 185 220 255 290 325 360 395 430 465 500
FREQUENCY (MHz)
Figure 25. AD9683-250 Single-Tone SNR/SFDR vs. Input Frequency (fIN)
Data Sheet
100
95
SFDR (dBc)
90
85
80
75
SNR (dBFS)
70
65
60
10 45 80 115 150 185 220 255 290 325 360 395 430 465 500
FREQUENCY (MHz)
Figure 26. AD9683-250 Single-Tone SNR/SFDR vs. Input Frequency (fIN),
RFCLK = 1.0 GHz with Divide by 4 (Address 0x09 = 0x21)
0
–20
SFDR (dBc)
–40
IMD3 (dBc)
–60
–80
SFDR (dBFS)
–100
IMD3 (dBFS)
–120
–90.0 –78.5 –67.0 –55.5 –44.0 –32.5 –21.0 –9.5
INPUT AMPLITUDE (dBFS)
Figure 27. AD9683-250 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)
with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz, fS = 250 MSPS
0
–20
SFDR (dBc)
–40
IMD3 (dBc)
–60
–80
SFDR (dBFS)
–100
IMD3 (dBFS)
–120
–90.0 –78.5 –67.0 –55.5 –44.0 –32.5 –21.0 –9.5
INPUT AMPLITUDE (dBFS)
Figure 28. AD9683-250 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)
with fIN1 = 184.12 MHz, fIN2 = 187.12 MHz, fS = 250 MSPS
Rev. 0 | Page 16 of 44
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