AD9832 Analog Devices, AD9832 Datasheet - Page 6

• Manufacturer Part Number: AD9832
• Description: CMOS Complete DDS
• Manufacturer: Analog Devices

AD9832
Figure 8. Wide Band SFDR vs. f
f
Figure 5. Typical Current Consump-
tion vs. MCLK Frequency
MCLK
–40
–45
–50
–55
–60
–65
–70
–75
–80
Figure 11. Wake-Up Time vs.
Temperature
7.5
5.0
2.5
25
20
15
10
for Various MCLK Frequencies
10
5
0
0
–40
5
0
AVDD = DVDD = +3.3V
T
AVDD = DVDD = +2.97V
A
= +25 C
–Typical Performance Characteristics
MCLK FREQUENCY – MHz
0.1
–30
10
TEMPERATURE – C
f
OUT
0.2
–20
/f
15
MCLK
+3.3V
+5V
0.3
20
–10
25MHz
10MHz
OUT
0.4
25
/
0
Figure 12. f
Frequency Word = B439581
Figure 9. SNR vs. MCLK Frequency
Figure 6. Narrow Band SFDR vs.
MCLK Frequency
–100
–50
–55
–60
–65
–70
–75
–80
60
55
50
45
40
–10
–20
–30
–40
–50
–60
–70
–80
–90
10
0
10
START 0Hz
RBW 300Hz
AVDD = DVDD = +3.3V
f
OUT
f
AVDD = DVDD = +3.3V
OUT
MCLK
= f
/f
MCLK FREQUENCY – MHz
MCLK FREQUENCY – MHz
MCLK
MCLK
= 25 MHz, f
15
0
/3
= 1/3
–6–
VBW 1kHz
20
20
OUT
STOP 12.5MHz
ST 277 SEC
= 1.1 MHz,
25
25
Figure 7. Wide Band SFDR vs. MCLK
Frequency
Figure 10. SNR vs. f
ous MCLK Frequencies
Figure 13. f
Frequency Word = 15810625
–40
–45
–50
–55
–60
–65
–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
60
55
50
45
40
10
0
0
START 0Hz
RBW 300Hz
AVDD = DVDD = +3.3V
f
AVDD = DVDD = +3.3V
OUT
MCLK
/f
MCLK
MCLK FREQUENCY – MHz
0.1
= 25 MHz, f
15
= 1/3
f
OUT
VBW 1kHz
OUT
0.2
/f
MCLK
/f
MCLK
20
OUT
STOP 12.5MHz
0.3
= 2.1 MHz,
ST 277 SEC
10MHz
25MHz
for Vari-
REV. A
25
0.4