AD9245 datasheet(15/32 Pages) AD

15 / 32 page

AD9245

Rev. D | Page 15 of 32

INPUT FREQUENCY (MHz)

100

–40

°C

+85

°C

125

+25

°C

Figure 20. SNR vs. Input Frequency

DUTY CYCLE (%)

SNR (DCS ON)

SNR (DCS OFF)

SFDR (DCS ON)

SFDR (DCS OFF)

Figure 21. SNR/SFDR vs. Clock Duty Cycle

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

–110

–120

9.6

19.2

28.8

38.4

FREQUENCY (MHz)

Figure 22. 32K FFT WCDMA Carrier @ FIN = 96 MHz; Sample Rate = 76.8 MSPS

INPUT FREQUENCY (MHz)

100

125

–40

°C

+25

°C

+85

°C

Figure 23. SFDR vs. Input Frequency

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

–110

–120

9.6

19.2

28.8

38.4

FREQUENCY (MHz)

Figure 24. Two 32K FFT CDMA-2000 Carriers @

FIN = 46.08 MHz; Sample Rate = 61.44 MSPS

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

–110

–120

9.6

19.2

28.8

38.4

FREQUENCY (MHz)

Figure 25. Two 32K FFT WCDMA Carriers @

FIN = 76.8 MHz; Sample Rate = 61.44 MSPS

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