AD9779A-EBZ Analog Devices Inc, AD9779A-EBZ Datasheet - Page 19

• 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

100
–0.2
–0.4
–0.6
–0.8
–1.0
–0.5
–1.0
–1.5
90
80
70
60
50
0.6
0.4
0.2
1.5
1.0
0.5
0
0
0
0
0
Figure 38. AD9778A IMD vs. f
40
2k
4× 100MSPS
80
Figure 37. AD9778A Typical DNL
Figure 36. AD9778A Typical INL
2k
4k
120
4× 150MSPS
6k
160
4k
f
OUT
CODE
200
CODE
8k
(MHz)
OUT
240
6k
, 4× Interpolation
10k
280
12k
4× 200MSPS
320
8k
14k
360
400
10k
16k
Rev. A | Page 19 of 60
REF –25.39dBm
*AVG
Log
10dB
PAVG
10
W1 S2
CENTER 143.88MHz
*RES BW 30kHz
RMS RESULTS
CARRIER POWER
–12.74dBm/
3.84000MHz
Figure 40. AD9778A ACLR, Single Carrier W-CDMA, 4× Interpolation,
Figure 41. AD9778A ACLR, f
100
–60
–70
–80
–90
90
80
70
60
50
Figure 39. AD9778A In-Band SFDR vs. f
0
0
25
3RD ADJ CHAN
FREQ OFFSET
5.000MHz
10.00MHz
15.00MHz
f
DATA
20
50
= 122.88 MSPS, Amplitude = −3 dBFS
AD9776A/AD9778A/AD9779A
*ATTEN 4dB
VBW 300kHz
f
75
DATA
f
REF BW
3.884MHz
3.840MHz
3.840MHz
DAC
100
/4 Modulation
= 160MSPS
40
DATA
f
f
OUT
OUT
= 122.88 MSPS, 4× Interpolation,
125
dBc
–76.49
–80.13
–80.90
(MHz)
(MHz)
LOWER
2ND ADJ CHAN
SWEEP 162.2ms (601 pts)
f
DATA
1ST ADJ CHAN
150
60
dBm
–89.23
–92.87
–93.64
OUT
= 250MSPS
f
175
DATA
, 2× Interpolation
dBc
–76.89
–80.02
–79.53
UPPER
SPAN 50MHz
= 200MSPS
200
80
dBm
–89.63
–92.76
–92.27
225
100
250