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AD9208

Data Sheet

Rev. 0 | Page 18 of 136

INPUT FREQUENCY (MHz)

–9dBFS

–2dBFS

155

455

755 1055 1355 1655 1955 2255 2555 2855 3205 3505 3805

Figure 18. SFDR vs. Input Frequency (fIN); AIN = −2 dBFS and −9 dBFS

155

455

755 1055 1355 1655 1955 2255 2555 2855 3205 3505 3805

–80

–70

–60

–50

–40

–30

–20

–10

INPUT FREQUENCY (MHz)

–9dBFS

–2dBFS

Figure 19. HD2 vs. Input Frequency (fIN); AIN = −2 dBFS and −9 dBFS

–90

–80

–70

–60

–50

–40

–30

–20

–10

INPUT FREQUENCY (MHz)

–9dBFS

–2dBFS

155

455

755 1055 1355 1655 1955 2255 2555 2855 3205 3505 3805

Figure 20. HD3 vs. Input Frequency (fIN); AIN = −2 dBFS and −9 dBFS

–120

–100

–80

–60

–40

–20

150

300

450

600

750

900 1050 1200 1350 1500

FREQUENCY (MHz)

AIN1 AND AIN2 = –8dBFS

SFDR = 72dBFS

IMD2 = 72dBFS

IMD3 = 73dBFS

BUFFER CURRENT = 500µA

Figure 21. Two-Tone FFT; fIN1 = 1821.5 MHz, fIN2 = 1831.5 MHz;

AIN1 and AIN2 = −8 dBFS

–120

–100

–80

–60

–40

–20

150

300

450

600

750

900 1050 1200 1350 1500

FREQUENCY (MHz)

AIN1 AND AIN2 = –15dBFS

SFDR = 75dBFS

IMD2 = 75dBFS

IMD3 = 87dBFS

BUFFER CURRENT = 500µA

Figure 22. Two-Tone FFT; fIN1 = 1821.5 MHz, fIN2 = 1831.5 MHz;

AIN1 and AIN2 = −15 dBFS

–120

–100

–80

–60

–40

–20

150

300

450

600

750

900 1050 1200 1350 1500

FREQUENCY (MHz)

AIN1 AND AIN2 = –8dBFS

SFDR = 67dBFS

IMD2 = 67dBFS

IMD3 = 69dBFS

BUFFER CURRENT = 600µA

Figure 23. Two-Tone FFT; fIN1 = 2621.5 MHz, fIN2 = 2631.5 MHz;

AIN1 and AIN2 = −8 dBFS

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