AD9834 datasheet(10/32 Pages) AD

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AD9834

Data Sheet

TYPICAL PERFORMANCE CHARACTERISTICS

MCLK FREQUENCY (MHz)

4.0

TA = 25°C

3.5

3.0

2.5

2.0

1.5

1.0

0.5

Figure 7. Typical Current Consumption (IDD) vs. MCLK Frequency

4.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

fOUT (Hz)

TA = 25°C

100

10k

100k

10M

100M

Figure 8. Typical IDD vs. fOUT for fMCLK = 50 MHz

MCLK FREQUENCY (MHz)

–65

–60

–90

–70

–75

–80

–85

AVDD = DVDD = 3V

TA = 25°C

SFDR dB MCLK/50

SFDR dB MCLK/7

Figure 9. Narrow-Band SFDR vs. MCLK Frequency

–10

–20

–30

–40

–50

–60

–70

–80

MCLK FREQUENCY (MHz)

fOUT = 1MHz

SFDR dB MCLK/7

AVDD = DVDD = 3V

TA = 25°C

Figure 10. Wideband SFDR vs. MCLK Frequency

–40

–80

–50

–60

–70

–10

–20

–30

50MHz CLOCK

30MHz CLOCK

AVDD = DVDD = 3V

TA = 25°C

fOUT/fMCLK

0.001

0.01

0.1

1.0

100

Figure 11. Wideband SFDR vs. fOUT/fMCLK for Various MCLK Frequencies

MCLK FREQUENCY (MHz)

–60

–65

–70

–50

–55

–40

–45

1.0

5.0

10.0

12.5

25.0

50.0

TA = 25°C

AVDD = DVDD = 3V

fOUT = MCLK/4096

Figure 12. SNR vs. MCLK Frequency

Rev. D | Page 10 of 32

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