AD9779A Analog Devices, AD9779A Datasheet - Page 7

• Manufacturer Part Number: AD9779A
• Description: Dual 16-Bit, 1 GSPS, Digital-to-Analog Converter
• Manufacturer: Analog Devices

Specifications of AD9779A

• Resolution (bits): 16bit
• Dac Update Rate: 1GSPS
• Dac Settling Time: n/a
• Max Pos Supply (v): +3.47V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: Par

DIGITAL INPUT DATA TIMING SPECIFICATIONS
All modes, −40°C to +85°C.
Table 3.
Parameter
INPUT DATA
LATENCY
3-WIRE INTERFACE
POWER-UP TIME
RESET
1
2
Specified values are with PLL disabled. Timing vs. temperature and data valid keep out windows (that is, the minimum amount of time valid data must be presented to
the device to ensure proper sampling) are delineated in Table 28.
Measured from CSB rising edge when Register 0x00, Bit 4, is written from 1 to 0 with the VREF decoupling capacitor equal to 0.1 μF.
Setup Time
Hold Time
Setup Time
Hold Time
1× Interpolation
2× Interpolation
4× Interpolation
8× Interpolation
Inverse Sync
Maximum Clock Rate (SCLK)
Minimum Pulse Width High, t
Minimum Pulse Width Low, t
Setup Time, t
Hold Time, t
Setup Time, t
Data Valid, t
Minimum Pulse Width, High
1
DV
DH
DS
DS
2
PWL
PWH
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
SDIO to SCLK
SDIO to SCLK
CSB to SCLK
SDO to SCLK
Rev. B | Page 7 of 56
Min
3.0
−0.80
−0.05
3.80
2.8
0.0
2.8
2.0
40
Typ
146
297
260
25
70
18
AD9776A/AD9778A/AD9779A
Max
2
12.5
12.5
Unit
ns
ns
ns
ns
DACCLK cycles
DACCLK cycles
DACCLK cycles
DACCLK cycles
DACCLK cycles
MHz
ns
ns
ns
ns
ns
ns
ms
DACCLK cycles