AD9832(RevA) Просмотр технического описания (PDF) - Analog Devices
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AD9832 Datasheet PDF : 16 Pages
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AD9832–Typical Performance Characteristics
25
TA = +25 C
20
+5V
15
10
+3.3V
5
0
5
10
15
20
25
MCLK FREQUENCY – MHz
–50
fOUT/fMCLK = 1/3
–55 AVDD = DVDD = +3.3V
–60
–65
–70
–75
–80
10
0
20
25
MCLK FREQUENCY – MHz
Figure 5. Typical Current Consump-
tion vs. MCLK Frequency
Figure 6. Narrow Band SFDR vs.
MCLK Frequency
–40
fOUT/fMCLK = 1/3
–45 AVDD = DVDD = +3.3V
–50
–55
–60
–65
10
15
20
25
MCLK FREQUENCY – MHz
Figure 7. Wide Band SFDR vs. MCLK
Frequency
–40
AVDD = DVDD = +3.3V
–45
–50
–55
–60
–65
–70
–75
–80
0
0.1
0.2
fOUT/fMCLK
25MHz
10MHz
0.3
0.4
Figure 8. Wide Band SFDR vs. fOUT/
fMCLK for Various MCLK Frequencies
60
AVDD = DVDD = +3.3V
fOUT = fMCLK/3
55
50
60
AVDD = DVDD = +3.3V
55
50
10MHz
25MHz
45
45
40
10
15
20
25
MCLK FREQUENCY – MHz
Figure 9. SNR vs. MCLK Frequency
40
0
0.1
0.2
0.3
0.4
fOUT/fMCLK
Figure 10. SNR vs. fOUT/fMCLK for Vari-
ous MCLK Frequencies
10
AVDD = DVDD = +2.97V
7.5
5.0
2.5
0
–40
–30
–20
–10
0
TEMPERATURE – °C
Figure 11. Wake-Up Time vs.
Temperature
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
START 0Hz
RBW 300Hz
STOP 12.5MHz
VBW 1kHz ST 277 SEC
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
START 0Hz
RBW 300Hz
STOP 12.5MHz
VBW 1kHz ST 277 SEC
Figure 12. fMCLK = 25 MHz, fOUT = 1.1 MHz, Figure 13. fMCLK = 25 MHz, fOUT = 2.1 MHz,
Frequency Word = B439581
Frequency Word = 15810625
–6–
REV. A
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