EVAL-AD5446EBZ Analog Devices Inc, EVAL-AD5446EBZ Datasheet - Page 3

• Manufacturer Part Number: EVAL-AD5446EBZ
• Description: BOARD EVALUATION FOR AD5446
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD5446EBZ

• Number Of Dac's: 1
• Number Of Bits: 14
• Outputs And Type: 1, Differential
• Sampling Rate (per Second): 20.4M
• Data Interface: Serial
• Settling Time: 16ns
• Dac Type: Current
• Voltage Supply Source: Single
• Operating Temperature: -40°C ~ 125°C
• Utilized Ic / Part: AD5446
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

EVALUATION BOARD HARDWARE AND SOFTWARE
EVALUATION BOARD HARDWARE
The board requires ±12 V and +5 V supplies. The +12 V V
and the −12 V V
V
with 10 μF tantalum and 0.1 μF ceramic capacitors.
Link LK1 can be used to connect the on-board reference to the
V
readback function on-board.
EVALUATION BOARD SOFTWARE
Software Installation
The evaluation kit includes self-installing software on a
CD ROM. The software is compatible with Windows® 95,
Windows 97, Windows 2000, Windows NT, and Windows XP.
If the setup file does not run automatically when you insert the
CD, run the setup.exe file directly from the CD.
Software Operation
1.
2.
DD1
REF
input, and Link LK2 can be used to enable the SDO
Ensure that the Centronics cable connects the PC to the
evaluation board.
From the Analog Devices menu, click Start > All
Programs > Analog Devices >AD5444_46 >AD5444_46
Evaluation Software.
For older PCs, click Start > Programs > Analog Devices
>AD5444_46 >AD5444_46 Evaluation Software.
The AD5444/46 Evaluation Software dialog box opens, as
shown in Figure 2.
powers the DAC. All supplies are decoupled to ground
Figure 2. AD5444/46 Evaluation Software Dialog Box
SS
power the output amplifier, whereas the +5 V
DD
Rev. 0 | Page 3 of 8
3.
4.
5.
6.
To have the data clocked on the rising edge, select the
Clock Data on Rising Edge check box.
Deselect this option for the default setting (data is clocked
on the falling edge).
To disable daisy chaining, select the Disable SDO check
box.
Deselect this option for the default setting (daisy chaining
enabled).
To select the resolution of the part on the evaluation board,
click the appropriate option button under Select Device.
Click OK to open the main window with drop-down
menus (File, Printer Port, and Help), as shown in Figure 3.
The main window allows you to write a data-word to the
DAC. You must enter the 12- or 14-bit word in
hexadecimal. The main window also allows you to select
the control functions of the AD5444/AD5446, as follows:
•
•
The Printer Port menu allows you to select the printer
port address to be used from a list of available addresses.
No Operation: The DAC is not being used.
Load and Update: Loads the DAC register with the
entered data-word and displays the output in the
Readback Value field, also in the main window.
Figure 3. Main Window
EVAL-AD5444/AD5446