AD9779A-EBZ Analog Devices Inc, AD9779A-EBZ Datasheet - Page 6

• 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
DIGITAL INPUT DATA TIMING SPECIFICATIONS
All modes, −40°C to +85°C.
Table 3.
Parameter
Input Data
Latency
Power-Up Time
1
2
AC SPECIFICATIONS
T
otherwise noted.
Table 4.
Parameter
SPURIOUS FREE DYNAMIC RANGE (SFDR)
TWO-TONE INTERMODULATION DISTORTION (IMD)
NOISE SPECTRAL DENSITY (NSD) EIGHT-TONE, 500 kHz
TONE SPACING
W-CDMA ADJACENT CHANNEL LEAKAGE RATIO (ACLR),
SINGLE CARRIER
W-CDMA SECOND ADJACENT CHANNEL LEAKAGE RATIO
(ACLR), SINGLE CARRIER
Timing vs. temperature and data valid keep out windows are delineated in Table 25.
Measured from CSB rising edge on Register 0x00, Bit 4 write from 0 to 1. VREF decoupling capacitor equal to 0.1 μF.
MIN
Setup Time
Hold Time
Setup Time
Hold Time
1× Interpolation
2× Interpolation
4× Interpolation
8× Interpolation
Inverse Sync
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
to T
= 100 MSPS, f
= 200 MSPS, f
= 400 MSPS, f
= 800 MSPS, f
= 200 MSPS, f
= 400 MSPS, f
= 400 MSPS, f
= 800 MSPS, f
= 200 MSPS, f
= 400 MSPS, f
= 800 MSPS, f
= 491.52 MSPS, f
= 491.52 MSPS, f
= 491.52 MSPS, f
= 491.52 MSPS, f
MAX
1
, AVDD33 = 3.3 V, DVDD33 = 3.3 V, DVDD18 = 1.8 V, CVDD18 = 1.8 V, I
2
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
= 20 MHz
= 50 MHz
= 70 MHz
= 70 MHz
= 50 MHz
= 60 MHz
= 80 MHz
= 100 MHz
= 80 MHz
= 80 MHz
= 80 MHz
= 100 MHz
= 200 MHz
= 100 MHz
= 200 MHz
Conditions
Input data to DATACLK
Input data to DATACLK
Input data to REFCLK
Input data to REFCLK
With or without modulation
With or without modulation
With or without modulation
With or without modulation
Rev. A | Page 6 of 60
Min
Min
3.0
0.0
−0.8
3.7
AD9776A
Typ
82
81
80
85
87
80
75
75
−152
−155
−157.5
76
69
77.5
76
Max
Typ
Min
146
297
260
25
70
18
OUTFs
AD9778A
= 20 mA, maximum sample rate, unless
Typ
82
81
80
85
87
85
81
80
−155
−159
−160
78
73
80
78
Max
Max
Min
AD9779A
Typ
82
82
80
87
91
85
81
81
−158
−160
−161
79
74
81
78
Unit
ns
ns
ns
ns
DACCLK Cycles
DACCLK Cycles
DACCLK Cycles
DACCLK Cycles
DACCLK Cycles
ms
Max
Unit
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBm/Hz
dBm/Hz
dBm/Hz
dBc
dBc
dBc
dBc