AD9838 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD9838 Datasheet PDF : 32 Pages
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AD9838
1.180
1.178
1.176
1.174
VDD = 2.7V
VDD = 5.0V
1.172
1.170
1.168
1.166
1.164
–40 –20 0
20 40 60 80
TEMPERATURE (°C)
100 120 140
Figure 12. VREF vs. Temperature
0.20
0.18
DVDD = 3.3V
0.16 DVDD = 2.3V
0.14
DVDD = 5.5V
0.12
0.10
0.08
0.06
0.04
0.02
0
–40 –20
0
20
40
60
TEMPERATURE (°C)
80
100
Figure 13. SIGN BIT OUT Pin, Low Level, ISINK = 1 mA
5.5
DVDD = 5.5V
5.0
4.5
DVDD = 4.5V
4.0
3.5
DVDD = 3.3V
3.0
DVDD = 2.7V
2.5
2.0
DVDD = 2.3V
1.5
–40 –20
0
20
40
60
TEMPERATURE (°C)
80
100
Figure 14. SIGN BIT OUT Pin, High Level, ISINK = 1 mA
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0 10 20 30 40 50 60 70 80 90 100
FREQUENCY (kHz)
Figure 15. Power vs. Frequency, fMCLK = 16 MHz, fOUT = 3.8 kHz,
Frequency Word = 0x000FBA9
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0 10 20 30 40 50 60 70 80 90 100
FREQUENCY (kHz)
Figure 16. Power vs. Frequency, fMCLK = 5 MHz, fOUT = 1.2 kHz,
Frequency Word = 0x000FBA9
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
0.5
1.0
1.5
2.0
2.5
FREQUENCY (MHz)
Figure 17. Power vs. Frequency, fMCLK = 5 MHz, fOUT = 0.714 MHz = fMCLK/7,
Frequency Word = 0x2492492
Rev. A | Page 10 of 32
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