AD6673 datasheet(15/46 Pages) AD

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AD6673

Data Sheet

Rev. C | Page 14 of 45

TYPICAL PERFORMANCE CHARACTERISTICS

AVDD = 1.8 V, DRVDD = 1.8 V, DVDD = 1.8 V, sample rate is 250 MSPS, DCS enabled, 1.75 V p-p differential input, VIN = −1.0 dBFS,

32k sample, TA = 25°C, link parameters used were M = 2 and L = 2, unless otherwise noted.

–120

–100

–80

–60

–40

–20

FREQUENCY (MHz)

100

fIN: 90.1MHz

fS: 250MSPS

SNR: 66.5dBFS

SFDR: 84dBc

Figure 5. AD6673-250 Single-Tone FFT with fIN = 90.1 MHz

FREQUENCY (MHz)

–120

–100

–80

–60

–40

–20

100

fIN: 185.1MHz

fS: 250MSPS

SNR: 66.2dBFS

SFDR: 84dBc

Figure 6. AD6673-250 Single-Tone FFT with fIN = 185.1 MHz

FREQUENCY (MHz)

–120

–100

–80

–60

–40

–20

100

fIN: 305.1MHz

fS: 250MSPS

SNR: 65.5dBFS

SFDR: 82dBc

Figure 7. AD6673-250 Single-Tone FFT with fIN = 305.1 MHz

100

120

–100

–80

–60

INPUT AMPLITUDE (dBFS)

–40

–20

SFDR (dBFS)

SNR (dBc)

SFDR (dBc)

SNR (dBFS)

Figure 8. AD6673-250 Single-Tone SNR/SFDR vs. Input Amplitude (AIN)

with fIN = 185.1 MHz

FREQUENCY (MHz)

100

200

300

400

SFDR, CHANNEL B (dBFS)

SFDR, CHANNEL A (dBFS)

SNR, CHANNEL A (dBFS)

SNR, CHANNEL B (dBFS)

Figure 9. AD6673-250 Single-Tone SNR/SFDR vs. Input Frequency (fIN)

INPUT AMPLITUDE (dBFS)

–120

–100

–80

–60

–40

–20

–100

–90

–80

–70

–60

–50

–40

–30

–20

–10

SFDR (dBc)

SFDR (dBFS)

IMD (dBc)

IMD (dBFS)

Figure 10. AD6673-250 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)

with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz

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