AD9683 datasheet(15/45 Pages) AD

15 / 45 page

AD9683

Data Sheet

Rev. D | Page 14 of 44

100

80 115 150 185 220 255 290 325 360 395 430 465 500

FREQUENCY (MHz)

SNR (dBFS)

SFDR (dBc)

Figure 11. AD9683-170 Single-Tone SNR/SFDR vs. Input Frequency (fIN)

100

80 115 150 185 220 255 290 325 360 395 430 465 500

FREQUENCY (MHz)

SFDR (dBc)

SNR (dBFS)

Figure 12. AD9683-170 Single-Tone SNR/SFDR vs. Input Frequency (fIN),

RFCLK = 680 MHz with Divide by 4 (Address 0x09 = 0x21)

–120

–100

–80

–60

–40

–20

–90.0

–78.5

–67.0

–55.5

–44.0

–32.5

–21.0

–9.5

INPUT AMPLITUDE (dBFS)

IMD3 (dBc)

SFDR (dBc)

SFDR (dBFS)

IMD3 (dBFS)

Figure 13. AD9683-170 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)

with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz, fS = 170 MSPS

–120

–100

–80

–60

–40

–20

INPUT AMPLITUDE (dBFS)

–90.0 –81.7 –73.4 –65.1 –56.8 –48.5 –40.2 –31.9 –23.6 –15.3 –7.0

IMD3 (dBc)

SFDR (dBFS)

IMD3 (dBFS)

SFDR (dBc)

Figure 14. AD9683-170 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)

with fIN1 = 184.12 MHz, fIN2 = 187.12 MHz, fS = 170 MSPS

–140

–120

–100

–80

–60

–40

–20

FREQUENCY (MHz)

170MSPS

89.12MHz AT –7dBFS

92.12MHz AT –7dBFS

SFDR = 90dBc (97dBFS)

Figure 15. AD9683-170 Two-Tone FFT with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz,

fS = 170 MSPS

–140

–120

–100

–80

–60

–40

–20

FREQUENCY (MHz)

170MSPS

184.12MHz AT –7dBFS

187.12MHz AT –7dBFS

SFDR = 87dBc (94dBFS)

Figure 16. AD9683-170 Two-Tone FFT with fIN1 = 184.12 MHz,

fIN2 = 187.12 MHz, fS = 170 MSPS

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