AD9788 Analog Devices, AD9788 Datasheet - Page 14

• Manufacturer Part Number: AD9788
• Description: Dual 16-Bit 800 MSPS DAC with Low Power 32-Bit Complex NCO
• Manufacturer: Analog Devices

Specifications of AD9788

• Resolution (bits): 16bit
• Dac Update Rate: 800MSPS
• Dac Settling Time: n/a
• Max Pos Supply (v): +3.47V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: Par

AD9785/AD9787/AD9788
Figure 11. AD9787 ACLR, 4× Interpolation, f
–55
–60
–65
–70
–75
–80
–85
–90
100
100
90
80
70
60
50
95
90
85
80
75
70
65
60
55
50
Figure 13. AD9787 In-Band SFDR vs. f
0
0
0
100MSPS
Figure 12. AD9787 IMD vs. f
20
40
40
80
20
60
SECOND ADJ CHAN
120
80 100 120 140 160 180 200 220 240 260
Amplitude = −3 dB
THIRD ADJ CHAN
160
40
f
f
f
OUT
OUT
OUT
200
(MHz)
(MHz)
(MHz)
150MSPS
FIRST ADJ CHAN
200MSPS
OUT
240
160MSPS
, 4× Interpolation
60
OUT
200MSPS
, 2× Interpolation
280
DATA
= 122.88 MSPS,
320
80
250MSPS
360
400
100
Rev. A | Page 14 of 64
Figure 16. AD9788 ACLR for First Adjacent Band WCDMA, 4× Interpolation,
Figure 14. AD9787 Noise Spectral Density vs. f
Figure 15. AD9787 Noise Spectral Density vs. f
–142
–146
–150
–154
–158
–162
–166
–170
–142
–146
–150
–154
–158
–162
–166
–170
–55
–60
–65
–70
–75
–80
–85
–90
f
DATA
0
0
0
= 122.88 MSPS, NCO Translates Baseband Signal to IF
20
40
Multitone Input, f
20
20
60
80 100 120 140 160 180 200 220 240
f
DATA
–6 dBFS PLL OFF
40
40
= 200 MSPS
f
f
f
–3 dBFS PLL OFF
OUT
OUT
OUT
0 dBFS PLL ON
DATA
(MHz)
(MHz)
(MHz)
1×
0 dBFS PLL OFF
= 200 MSPS
60
60
OUT
1×
2×
4×
over Output Frequency of
OUT
, Single-Tone Input,
4×
80
80
2×
260
100
100