AD6677 datasheet(14/48 Pages) AD

14 / 48 page

AD6677

Data Sheet

Rev. C | Page 14 of 48

100

10 45 80 115 150 185 220 255 290 325 360 395 430 465 500

FREQUENCY (MHz)

SFDR (dBc)

SNR (dBFS)

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

100

10 45 80 115 150 185 220 255 290 325 360 395 430 465 500

FREQUENCY (MHz)

SNR (dBFS)

SFDR (dBc)

Figure 12. Single-Tone SNR/SFDR vs. Input Frequency (fIN), RFCLK = 1.0 GHz

with Divide by 4 (Address 0x09 = 0x21)

–120

–100

–80

–60

–40

–20

–90

–80

–70

–60

–50

–40

–30

–20

–10

INPUT AMPLITUDE (dBFS)

IMD3 (dBFS)

SFDR (dBFS)

IMD3 (dBc)

SFDR (dBc)

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

with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz

–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)

SFDR (dBc)

IMD3 (dBc)

IMD3 (dBFS)

SFDR (dBFS)

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

with fIN1 = 184.12 MHz, fIN2 = 187.12 MHz

–140

–120

–100

–80

–60

–40

–20

100

125

FREQUENCY (MHz)

250MSPS

89.12MHz AT –7.0dBFS

92.12MHz AT –7.0dBFS

SFDR = 89dBc (96dBFS)

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

–140

–120

–100

–80

–60

–40

–20

100

125

FREQUENCY (MHz)

250MSPS

184.12MHz AT –7.0dBFS

187.12MHz AT –7.0dBFS

SFDR = 86dBc (93dBFS)

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

fIN2 = 187.12 MHz

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