AD9779A-EBZ Analog Devices Inc, AD9779A-EBZ Datasheet - Page 17

• Manufacturer Part Number: AD9779A-EBZ
• Description: Dual 16B, 1.0 GSPS TxDAC
• Manufacturer: Analog Devices Inc
• Series: TxDAC®r

Specifications of AD9779A-EBZ

• Design Resources: Interfacing ADL5370 to AD9779A Dual-Channel, 1 GSPS High Speed DAC (CN0016) Interfacing ADL5371 to AD9779A Dual-Channel, 1 GSPS High Speed DAC (CN0017) Interfacing ADL5372 to AD9779A Dual-Channel, 1 GSPS High Speed DAC (CN0018) Interfacing ADL5373 to AD9779A Dual-Channel, 1 GSPS High Speed DAC (CN0019) Interfacing ADL5374 to AD9779A Dual-Channel, 1 GSPS High Speed DAC (CN0020) Interfacing ADL5375 to AD9779A Dual-Channel, 1 GSPS High Speed DAC (CN0021)
• Number Of Dac's: 2
• Number Of Bits: 16
• Outputs And Type: 2, Differential
• Sampling Rate (per Second): 1G
• Data Interface: Serial
• Dac Type: Current
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD9779A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Settling Time: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REF 0dBm
*PEAK
Log
10dB
LGAV
51
W1
S3
£(f):
FTUN
SWP
START 1.0MHz
*RES BW 20kHz
Figure 25. AD9779A IMD Performance vs. Full-Scale Output Current over
Figure 24. AD9779A IMD Performance vs. Digital Full-Scale Input over
S2
FC
AA
100
100
95
90
85
80
75
70
65
60
55
50
95
90
85
80
75
70
65
60
55
50
0
0
Output Frequency, 4× Interpolation, f
Output Frequency, 4× Interpolation, f
Figure 26. AD9779A Single Tone, 4× Interpolation,
30mA
40
40
–6dBFS
80
80
f
DATA
*ATTEN 20dB
0dBFS
120
20mA
120
VBW 20kHz
= 100 MSPS, f
–3dBFS
10mA
160
160
f
f
OUT
OUT
200
200
(MHz)
(MHz)
OUT
240
240
= 30 MHz
SWEEP 1.203s (601 pts)
DATA
DATA
280
280
STOP 400.0MHz
DC-COUPLED
= 200 MSPS
= 200 MSPS
EXT REF
320
320
360
360
400
400
Rev. A | Page 17 of 60
Figure 29. AD9779A Noise Spectral Density vs. f
Figure 28. AD9779A Noise Spectral Density vs. Digital Full-Scale over Output
REF 0dBm
*PEAK
Log
10dB
LGAV
51
W1
S3
£(f):
FTUN
SWP
START 1.0MHz
*RES BW 20kHz
S2
FC
AA
–150
–154
–158
–162
–166
–170
–142
–146
–150
–154
–158
–162
–166
–170
4× Interpolation, f
Eight-Tone Input with 500 kHz Spacing, f
0
0
Frequency of Single Tone Input, f
Figure 27. AD9779A Two-Tone Spectrum,
20
AD9776A/AD9778A/AD9779A
20
*ATTEN 20dB
f
DAC
VBW 20kHz
DATA
2× Interpolation
= 200MSPS
= 100 MSPS, f
40
0dBFS
f
f
OUT
40
OUT
(MHz)
f
–6dBFS
(MHz)
DAC
SWEEP 1.203s (601 pts)
60
= 800MSPS
OUT
DATA
DAC
f
DAC
= 30 MHz, 35 MHz
60
over Output Frequency for
= 200 MSPS,
DATA
STOP 400.0MHz
DC-COUPLED
= 400MSPS
–3dBFS
EXT REF
= 200 MSPS
80
80
100