AD9834
TYPICAL PERFORMANCE CHARACTERISTICS
4.0
0
AVDD = DVDD = 3V
= 25°C
T
= 25°C
A
T
A
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–10
–20
–30
–40
–50
–60
–70
–80
5V
3V
SFDR dB MCLK/7
f
= 1MHz
20
OUT
0
15
30
45
60
75
0
10
30
40
50
60
70
MCLK FREQUENCY (MHz)
MCLK FREQUENCY (MHz)
Figure 7. Typical Current Consumption (IDD) vs. MCLK Frequency
Figure 10. Wideband SFDR vs. MCLK Frequency
4.0
0
–10
–20
–30
–40
–50
–60
–70
–80
AVDD = DVDD = 3V
= 25°C
T
= 25°C
5V
A
T
A
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
3V
50MHz CLOCK
30MHz CLOCK
100
1k
10k
100k
(Hz)
1M
10M
100M
0.001
0.01
0.1
1.0
OUT MCLK
10
100
f
f
/f
OUT
Figure 11. Wideband SFDR vs. fOUT/fMCLK for Various MCLK Frequencies
Figure 8. Typical IDD vs. fOUT for fMCLK = 50 MHz
–60
–65
–70
–75
–80
–85
–90
–40
AVDD = DVDD = 3V
= 25°C
T
= 25°C
A
T
AVDD = DVDD = 3V
A
f
= MCLK/4096
OUT
–45
–50
–55
SFDR dB MCLK/50
–60
–65
–70
SFDR dB MCLK/7
60
1.0
5.0
10.0
12.5
25.0
50.0
0
15
30
45
75
MCLK FREQUENCY (MHz)
MCLK FREQUENCY (MHz)
Figure 12. SNR vs. MCLK Frequency
Figure 9. Narrow-Band SFDR vs. MCLK Frequency
Rev. C | Page 10 of 36
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