AD6674 datasheet(25/97 Pages) AD

25 / 97 page

AD6674

Data Sheet

Rev. C | Page 24 of 96

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250

FREQUENCY (MHz)

AIN1 AND AIN2 = –7dBFS

SFDR = 88dBFS

IMD2 = 94dBFS

IMD3 = 88dBFS

BUFFER CONTROL 1 = 2.0×

Figure 56. Two-Tone FFT; fIN1 = 184 MHz, fIN2 = 187 MHz

–120

–100

–80

–60

–40

–20

100

150

200

250

FREQUENCY (MHz)

AIN1 AND AIN2 = –7dBFS

SFDR = 88dBFS

IMD2 = 88dBFS

IMD3 = 89dBFS

BUFFER CONTROL 1 = 4.5×

Figure 57. Two-Tone FFT; fIN1 = 338 MHz, fIN2 = 341 MHz

INPUT AMPLITUDE (dBFS)

–90 –84 –78 –72 –66 –60 –54 –48 –42 –36 –30 –24 –18 –12 –6

–120

–100

–80

–60

–40

–20

SFDR (dBc)

IMD3 (dBFS)

Figure 58. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with fIN1 = 184 MHz

and fIN2 = 187 MHz

INPUT AMPLITUDE (dBFS)

–90 –84 –78 –72 –66 –60 –54 –48 –42 –36 –30 –24 –18 –12 –6

–120

–100

–80

–60

–40

–20

SFDR (dBc)

IMD3 (dBFS)

Figure 59. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)

with fIN1 = 338 MHz and fIN2 = 341 MHz

AD6674 Datasheet(PDF) 25 Page - Analog Devices

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