AD6673 datasheet(16/46 Pages) AD

16 / 46 page

Data Sheet

AD6673

Rev. C | Page 15 of 45

–120

–100

–80

–60

–40

–20

–100

INPUT AMPLITUDE (dBFS)

SFDR (dBc)

IMD (dBc)

SFDR (dBFS)

IMD (dBFS)

–90

–80

–70

–60

–50

–40

–30

–20

–10

Figure 11. AD6673-250 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)

with fIN1 = 184.12 MHz, fIN2 = 187.12 MHz

FREQUENCY (MHz)

–120

–100

–80

–60

–40

–20

100

fS: 250MSPS

fIN1: 89.12MHz AT –7dBFS

fIN2: 92.12MHz AT –7dBFS

SFDR: 85dBc

Figure 12. AD6673-250 Two-Tone FFT with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz

FREQUENCY (MHz)

–120

–100

–80

–60

–40

–20

100

fS: 250MSPS

fIN1: 184.12MHz AT –7dBFS

fIN2: 187.12MHz AT –7dBFS

SFDR: 84dBc

Figure 13. AD6673-250 Two-Tone FFT with fIN1 = 184.12 MHz,

fIN2 = 187.12 MHz

SAMPLE RATE (MSPS)

100

140

190

240

SFDR, CHANNEL A (dBFS)

SFDR, CHANNEL B (dBFS)

SNR, CHANNEL B (dBFS)

SNR, CHANNEL A (dBFS)

Figure 14. AD6673-250 Single-Tone SNR/SFDR vs. Sample Rate (fS)

with fIN = 90.1 MHz

200,000

400,000

600,000

800,000

1,000,000

1,200,000

1,400,000

1,600,000

1,800,000

2,000,000

OUTPUT CODE

2,097,124 TOTAL HITS

1779257

317867

N + 1

Figure 15. AD6673-250 Grounded Input Histogram

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