AD9689 datasheet(19/134 Pages) AD

19 / 134 page

Data Sheet

AD9689

Rev. A | Page 19 of 134

–40

–20

100

120

INPUT AMPLITUDE (dBFS)

SNR (dBFS)

SFDR (dBFS)

SFDR (dBc)

SNR (dBc)

Figure 24. SNR/SFDR vs. Input Amplitude (AIN), fIN = 900 MHz

–40

–20

100

120

INPUT AMPLITUDE (dBFS)

SNR (dBFS)

SFDR (dBFS)

SFDR (dBc)

SNR (dBc)

Figure 25. SNR/SFDR vs. Input Amplitude (AIN), fIN = 1800 MHz

–10

10 20 30 40 50 60 70 80 90 100 110 120

JUNCTION TEMPERATURE (°C)

SNR

SFDR

Figure 26. SNR/SFDR vs. Junction Temperature (TJ), fIN = 900 MHz

0.5

1.0

1.5

2.0

2.5

3.0

3.5

AVDD1 + AVDD2 + AVDD3 POWER

DRVDD1 + DRVDD2 POWER

DVDD + SPIVDD POWER

AVERAGE OF TOTAL POWER (W)

–10

10 20 30 40 50 60 70 80 90 100 110 120

JUNCTION TEMPERATURE (°C)

Figure 27. Power vs. Junction Temperature (TJ), fIN = 900 MHz

ANALOG INPUT FREQUENCY (MHz)

0.2V

0.3V

0.5V

0.8V

1.2V

1.8V

2.0V

Figure 28. SNR vs. Analog Input Frequency (fIN) for Various Clock Amplitude

in Differential Peak-to-Peak Voltages

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.0

2.1

SAMPLE FREQUENCY (GHz)

SNR

SFDR

Figure 29. SNR/SFDR vs. Sample Frequency (fS), fIN = 900 MHz

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