AD6674 datasheet(19/91 Pages) AD

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Data Sheet

AD6674

FREQUENCY (MHz)

–140

–120

–100

–80

–60

–40

–20

375

300

225

150

350

275

200

125

325

250

175

100

AIN1 AND AIN2 = −7dBFS

SFDR = 83dBFS

IMD2 = 89dBc

IMD3 = 83dBc

BUFFER CONTROL 1 = 4.5×

Figure 36. Two-Tone FFT; fIN1 = 338 MHz, fIN2 = 341 MHz

INPUT AMPLITUDE (dBFS)

–120

–100

–80

–60

–40

–20

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

SFDR (dBFS)

IMD3 (dBFS)

SFDR (dBc)

IMD3 (dBc)

Figure 37. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)

with fIN1 = 184 MHz and fIN2 = 187 MHz

–120

–100

–80

–60

–40

–20

SFDR (dBc)

IMD3 (dBc)

SFDR (dBFS)

IMD3 (dBFS)

INPUT AMPLITUDE (dBFS)

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

Figure 38. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)

with fIN1 = 338 MHz and fIN2 = 341 MHz

100

120

INPUT AMPLITUDE (dBFS)

SNR (dBFS)

SFDR (dBFS)

SNR (dBc)

SFDR (dBc)

Figure 39. SNR/SFDR vs. Input Amplitude (AIN), fIN = 170.3 MHz

TEMPERATURE (°C)

–40

–15

SNR

SFDR

Figure 40. SNR/SFDR vs. Temperature, fIN = 170.3 MHz

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

500

550

600

650

SAMPLE RATE (MSPS)

700

750

800

850

Figure 41. Power Dissipation vs. Sample Rate (fS); L = 4, M = 2, F = 1 for

fS ≥ 625 MSPS and L= 2, M = 2, F = 2 for fS < 625 MSPS (Default SPI)

Rev. B | Page 19 of 91

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