AD9779A-EBZ Analog Devices Inc, AD9779A-EBZ Datasheet - Page 34

• 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

AD9776A/AD9778A/AD9779A
Table 19. Interpolation Filter Modes, (Register 0x01, Bits<5:2>)
Interpolation
Factor<7:6>
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
4
4
4
4
4
4
4
4
2
2
2
2
Filter Mode<5:2>
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x00
0x01
0x02
0x03
Modulation
DC
DC shifted
f
f
f
f
3f
3f
f
f
−3f
−3f
−f
−f
−f
−f
DC
DC shifted
f
f
f
f
−f
−f
DC
DC shifted
f
f
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
/8
/8 shifted
/4
/4 shifted
/2
/2 shifted
DAC
DAC
/4
/4 shifted
/2
/2 shifted
/2
/2 shifted
/8
/8 shifted
/4
/4 shifted
/8
/8 shifted
/4
/4 shifted
/8
/8 shifted
Nyquist Zone
Pass Band
+1
+2
+3
+4
+5
+6
+7
+8
−8
−7
−6
−5
−4
−3
−2
−1
+1
+2
+3
+4
−4
−3
−2
−1
+1
+2
−2
−1
Rev. A | Page 34 of 60
Low
−0.05
+0.0125
+0.075
+0.1375
+0.2
+0.2625
+0.325
+0.3875
−0.55
−0.4875
−0.425
−0.3625
−0.3
−0.2375
−0.175
−0.1125
−0.1
+0.025
+0.15
+0.275
−0.6
−0.475
−0.35
−0.225
−0.2
+0.05
−0.7
−0.45
Frequency Normalized to f
Center
0
+0.0625
+0.125
+0.1875
+0.25
+0.3125
+0.375
+0.4375
−0.5
−0.4375
−0.375
−0.3125
−0.25
−0.1875
−0.125
−0.0625
0
+0.125
+0.25
+0.375
−0.5
−0.375
−0.25
−0.125
0
+0.25
−0.5
−0.25
High
+0.05
+0.1125
+0.175
+0.2375
+0.3
+0.3625
+0.425
+0.4875
−0.45
−0.3875
−0.343
−0.2625
−0.2
−0.1375
−0.075
−0.0125
+0.1
+0.225
+0.35
+0.475
−0.4
−0.275
−0.15
−0.025
+0.2
+0.45
−0.3
−0.05
DAC
Comments
In 8× interpolation;
BW (min) = 0.0375 × f
BW (max) = 0.1 × f
In 4× interpolation;
BW (min) = 0.075 × f
BW (max) = 0.2 × f
In 2× interpolation;
BW (min) = 0.15 × f
BW (max) = 0.4 × f
DAC
DAC
DAC
DAC
DAC
DAC