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AD9779PCB Scheda tecnica(PDF) 11 Page - Analog Devices

Il numero della parte AD9779PCB
Spiegazioni elettronici  Dual 16-Bit, 1.0 GSPS D/A Converter
PDF  34 Pages
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD9779PCB Scheda tecnica(HTML) 11 Page - Analog Devices

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Preliminary Technical Data
AD9779
Rev. PrD | Page 11 of 34
-90
-85
-80
-75
-70
-65
-60
-55
-50
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
Fout - M Hz
FDATA=122.88MSPS
FDATA=61.44MSPS
Figure 18. ACLR for 1st Adjacent Band WCDMA, 4x Interpolation. On-Chip
Modulation is used to translate baseband signal to IF.
-90
-85
-80
-75
-70
-65
-60
-55
-50
0
20
40
60
80
100 120 140 160 180 200 220 240 260 280 300
Fout - MHz
FDATA=122.88MSPS
FDATA=61.44MSPS
Figure 19. ACLR for 2nd Adjacent Band WCDMA, 4x Interpolation. On-Chip
Modulation is used to translate baseband signal to IF.
-90
-85
-80
-75
-70
-65
-60
-55
-50
0
20
40
60
80
100
120
140 160
180
200
220
240
260
280
300
Fout - M Hz
FDATA=122.88MSPS
FDATA=61.44MSPS
Figure 20. ACLR for 3rd Adjacent Band WCDMA, 4x Interpolation. On-Chip
Modulation is used to translate baseband signal to IF.
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0
25
50
75
100
125
150
175
200
225
250
FDATA (MSPS)
8x Interpolation,
Zero Stuffing
4x Interpolation,
Zero Stuffing
4x Interpolation
2x Interpolation,
Zero Stuffing
2x Interpolation
1x Interpolation,
Zero Stuffing
1x Interpolation
8x Interpolation
Figure 21. Power Dissipation, Single DAC Mode
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
0
25
50
75
100
125
150
175
200
225
250
FDATA (M SPS)
8x Interpolation,
Zero Stuffing
8x Interpolation,FDAC/4 Modulation
4x Interpolation,
Zero Stuffing
8x Interpolation,FDAC/2 Modulation
8x Interpolation,FDAC/8 Modulation
8x Interpolation,Modulation off
4x Interpolation,FDAC/4 Modulation
4x Interpolation,FDAC/2 Modulation
4x Interpolation,Modulation off
2x Interpolation,
Zero Stuffing
2x Interpolation,FDAC/2 Modulation
2x Interpolation,Modulation off
1x Interpolation,
Zero Stuffing
1x Interpolation
Figure 22. Power Dissipation, Dual DAC Mode
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
0
200
400
600
800
1000
1200
F
DAC - M SPS
Figure 23. Power Dissipation of Inverse Sinc Filter



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