參數(shù)資料
型號(hào): AD9831AST
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號(hào)處理外設(shè)
英文描述: CMOS Complete DDS
中文描述: 16-BIT, DSP-NUM CONTROLLED OSCILLATOR, PQFP48
封裝: TQFP-48
文件頁數(shù): 7/16頁
文件大?。?/td> 172K
代理商: AD9831AST
–7–
REV. A
MCLK FREQUENCY – MHz
T
25
0
5
10
15
20
25
20
15
10
5
T
A
= +25
°
C
+5V
+3.3V
Figure 5. Typical Current Consumption vs. MCLK
Frequency
MCLK FREQUENCY – MHz
S
±
5
–80
–75
10
15
20
25
–50
–55
–60
–65
–70
f
OUT
/f
MCLK
= 1/3
AVDD = DVDD = +3.3V
Figure 6. Narrow Band SFDR vs. MCLK Frequency
MCLK FREQUENCY – MHz
–65
25
10
S
±
2
15
20
–50
–55
–60
–40
–45
f
OUT
/f
MCLK
= 1/3
AVDD = DVDD = +3.3V
Figure 7. Wide Band SFDR vs. MCLK Frequency
f
OUT
/f
MCLK
–40
–45
–80
0
0.4
0.1
S
±
2
0.2
0.3
–60
–65
–70
–75
–50
–55
25MHz
10MHz
AVDD = DVDD = +3.3V
Figure 8. Wide Band SFDR vs. f
OUT
/f
MCLK
for Various
MCLK Frequencies
MCLK FREQUENCY – MHz
60
55
4010
25
15
S
20
50
45
AVDD = DVDD = +3.3V
f
OUT
= f
MCLK
/3
Figure 9. SNR vs. MCLK Frequency
f
OUT
/f
MCLK
60
55
400
0.4
0.1
S
0.2
50
45
AVDD = DVDD = +3.3V
0.3
10MHz
25MHz
Figure 10. SNR vs. f
OUT
/f
MCLK
for Various MCLK
Frequencies
Typical Performance Characteristics–AD9831
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