AD9691 datasheet(13/72 Pages) AD

13 / 72 page

Data Sheet

AD9691

Rev. 0 | Page 13 of 72

–120

–100

–80

–60

–40

–20

125

250

375

500

625

FREQUENCY (MHz)

AIN = –1dBFS

SNR = 58.2dBFS

ENOB = 9.3 BITS

SFDR = 67dBFS

BUFFER CURRENT = 4.5×

Figure 12. Single-Tone FFT with fIN = 1205.3 MHz

–120

–100

–80

–60

–40

–20

125

250

375

500

625

FREQUENCY (MHz)

AIN = –1dBFS

SNR = 56.5dBFS

ENOB = 9.0 BITS

SFDR = 66dBFS

BUFFER CURRENT = 5.5×

Figure 13. Single-Tone FFT with fIN = 1600.3 MHz

–120

–100

–80

–60

–40

–20

125

250

375

500

625

FREQUENCY (MHz)

AIN = –1dBFS

SNR = 56.5dBFS

ENOB = 9.0 BITS

SFDR = 66dBFS

BUFFER CURRENT = 7.5×

Figure 14. Single-Tone FFT with fIN = 1950.3 MHz

1000

1050

1100

1150

1200

1250

SAMPLE RATE (MHz)

SNR

SFDR

Figure 15. SNR/SFDR vs. Sample Rate (fS), fIN = 170.3 MHz, Buffer Current = 3.0×

INPUT FREQUENCY (MHz)

SNR

SFDR

Figure 16. SNR/SFDR vs. Input Frequency (fIN), fIN < 600 MHz,

Buffer Current = 3.5× (See Figure 41 and Table 9)

700.3

800.3

900.3

1000.3

1100.3

1200.3

INPUT FREQUENCY (MHz)

SNR

SFDR

Figure 17. SNR/SFDR vs. Input Frequency (fIN), 700 MHz < fIN < 1200 MHz,

Buffer Current = 4.5× (See Figure 41 and Table 9)

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