Datasheet

AD9838
Rev. A | Page 9 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
6.0
5.5
5.0
4.5
4.0
3.5
3.0
024681012141618
MCLK FREQUENCY (MHz)
I
DD
+ I
AA
(mA)
09077-020
VDD = 5V
VDD = 3V
Figure 6. Typical Current Consumption (I
DD
+ I
AA
) vs. MCLK Frequency
for f
OUT
= MCLK/10
2.5
2.0
1.5
1.0
0.5
0
024681012141618
MCLK FREQUENCY (MHz)
I
DD
(mA)
09077-021
VDD = 5V
VDD = 3V
Figure 7. Typical Current Consumption (I
DD
) vs. MCLK Frequency
for f
OUT
= MCLK/10
–
91
–92
–93
–94
–95
–96
–97
–98
–99
02 46810121416
MCLK FREQUENCY (MHz)
SFDR (dB)
09077-022
AVDD = DVDD = 3V
T
A
= 25°C
±200kHz
MCLK/50
MCLK/7
Figure 8. Narrow-Band SFDR vs. MCLK Frequency
–
40
–45
–50
–55
–60
–65
–70
–75
–80
1611
MCLK FREQUENCY (MHz)
SFDR (dB)
09077-023
16
MCLK/50
MCLK/7
AVDD = DVDD = 3V
T
A
= 25°C
0Hz TO NYQUIST
Figure 9. Wideband SFDR vs. MCLK Frequency
–
40
–45
–50
–55
–60
–65
–70
024681012141618
MCLK FREQUENCY (MHz)
SNR (dB)
09077-024
Figure 10. SNR vs. MCLK Frequency
1000
900
800
700
600
500
400
–40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
WAKE-UP TIME (µs)
09077-037
VDD = 2.3V
VDD = 5.5V
Figure 11. Wake-Up Time vs. Temperature