Datasheet

Data Sheet AD9833
Rev. G | Page 7 of 21
TYPICAL PERFORMANCE CHARACTERISTICS
MCLK FREQUENCY (MHz)
I
DD
(mA)
5.5
5.0
3.0
3.5
4.0
4.5
0 5 10 15 20 25
T
A
= 25°C
02704-006
VDD = 5V
VDD = 3V
Figure 6. Typical Current Consumption (I
DD
) vs. MCLK Frequency
for f
OUT
= MCLK/10
0
1
2
3
4
5
6
100 1k 10k 100k 1M 10M
I
DD
(mA)
f
OUT
(Hz)
VDD = 5V
VDD = 3V
0
2704-007
Figure 7. Typical I
DD
vs. f
OUT
for f
MCLK
= 25 MHz
0 5 10 15 20 25
MCLK FREQUENCY (MHz)
SFDR (dBc)
–65
–
60
–90
–70
–75
–80
–85
MCLK/7
MCLK/50
VDD = 3V
T
A
= 25°C
02704-008
Figure 8. Narrow-Band SFDR vs. MCLK Frequency
–45
–
40
–70
5 7 9 11 13 15 17 19 21 23 25
–50
–55
–60
–65
MCLK FREQUENCY (MHz)
SFDR (dBc)
MCLK/7
MCLK/50
VDD = 3V
T
A
= 25°C
02704-009
Figure 9. Wideband SFDR vs. MCLK Frequency
f
OUT
/f
MCLK
–30
–90
–80
–70
–60
–50
–40
SFDR (dB)
0
–20
–10
f
MCLK
= 1MHz
f
MCLK
= 10MHz
0.001 0.01 0.1 1 10 100
f
MCLK
= 25MHz
VDD = 3V
T
A
= 25°C
0
2704-010
f
MCLK
= 18MHz
Figure 10. Wideband SFDR vs. f
OUT
/f
MCLK
for Various MCLK Frequencies
MCLK FREQUENCY (MHz)
1.0 5.0 10.0 12.5 25.0
SNR (dB)
–60
–65
–70
–50
–55
–
40
–45
VDD = 3V
T
A
= 25°C
f
OUT
= MCLK/4096
02704-011
Figure 11. SNR vs. MCLK Frequency