Analog Devices EVAL-AD5629RSDZ User manual

EVAL-AD5629RSDZ/EVAL-AD5669RSDZ User Guide
UG-867
One Technology Way •P. O . Box 9106 •Norwood, MA 02062-9106, U.S.A. •Tel: [phone] •Fax: [phone] •www.analog.com
Evaluating the AD5629R/AD5669R, Octal, 16-/12-Bit, denseDAC
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.Rev. 0 | Page 1 of 14
FEATURES
Full featured evaluation boards for the AD5629R/AD5669R
On-board reference
Various link options
PC control in conjunction with the Analog Devices, Inc.,
EVAL-SDP-CB1Z system demonstration platform (SDP)
EVALUATION KIT CONTENTS
EVAL-AD5629RSDZ/EVAL-AD5669RSDZ evaluation boards
CD includes
Self installing evaluation software that allows users to
control the board and exercise all functions of the device
Electronic version of theEVAL-AD5629RSDZ/
EVAL-AD5669RSDZ user guide
ADDITIONAL EQUIPMENT AND SOFTWARE NEEDED
EVAL-SDP-CB1Z SDP board (includes a USB cable)
PC running Windows Vista, Windows 7, or Windows 8 with a
USB 2.0 port
ONLINE RESOURCES
Documents needed
AD5629R/AD5669R
EVAL-AD5629RSDZ/EVAL-AD5669RSDZ user guide
Required software
AD5629R/AD5669R evaluation software (download from the
EVAL-AD5629RSDZ/EVAL-AD5669RSDZ product pages)
Design and integration files
Schematics, layout files, bill of materials
GENERAL DESCRIPTION
This user guide details the operation of the evaluation boards
for the AD5669R octal channel, 16-bit, voltage output digital-to-
analog converter (DAC) and the AD5629R octal channel, 12-bit,
voltage output DAC.
The E VA L-AD5629RSDZ/E VA L -AD5669RSDZ evaluation boards
help users quickly prototype new AD5629R/AD5669R circuits and
reduce design time. The AD5629R/AD5669R operates from a
single 2.7 V to 5.5 V supply. The AD5629R/AD5669R has an
internal 1.25 V or 2.5 V reference giving an output voltage span of
2.5 V or 5 V. T h e internal reference is off at power-up, allowing
the use of an external reference; the REF195 is provided on-board
as a 5 V reference source. The device must be written to after
power-up to turn on the internal reference.
The evaluation boards interface to the USB port of a PC via the
SDP-B board. Software is supplied with the evaluation boards to
allow the user to program the AD5629R/AD5669R.
The evaluation boards are compatible with the E VA L -SDP-CB1Z
Blackfin® SDP controller board (SDP-B), available to order on
the Analog Devices website at www.analog.com.
Full data on the AD5629R/AD5669R is available in the
corresponding data sheets, available from Analog Devices, which
should be consulted in conjunction with this user guide when
using the evaluation boards.

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TABLE OF CONTENTS
Features .............................................................................................. 1
Evaluation Kit Contents................................................................... 1
Additional Equipment and Software Needed................................... 1
Online Resources.............................................................................. 1
General Description......................................................................... 1
Revision History ............................................................................... 2
Typical Evaluation Setup ................................................................. 3
Getting Started.................................................................................. 4
Installing the Software ................................................................. 4
Evaluation Board Setup Procedures........................................... 4
Evaluation Board Hardware............................................................ 5
Power Supplies.............................................................................. 5
Input Signals...................................................................................5
Output Signals ...............................................................................5
Link Configuration Options ............................................................6
Setup Conditions...........................................................................6
Evaluation Board Circuitry..............................................................7
How to Use the Software ..................................................................8
Starting the Software.....................................................................8
Software Operation.......................................................................9
Evaluation Board Schematics and Artwork................................ 10
Ordering Information.................................................................... 14
Bill of Materials........................................................................... 14
REVISION HISTORY
9/15—Revision 0: Initial Version

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TYPICAL EVALUATION SETUP
Figure 1. Typical Evaluation Setup of the AD5629R/AD5669R Evaluation Boards
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GETTING STARTED
INSTALLING THE SOFTWARE
The evaluation kit for the AD5629R/AD5669R includes self
installing software on the CD provided. The software is compatible
with Windows® Vista™ (32-bit), Windows 7 (32-bit and 64-bit),
and Windows 8.
Install the software before connecting the SDP-B board to the USB
port of the PC to ensure the SDP-B board is recognized when
connecting to the PC.
To install the software, complete the following steps:
1. Start the Windows operating system and insert the CD.
2. The installation software opens automatically. If it does not
open automatically, run the setup.exe file from the CD.
3. After installation is complete, power up the evaluation
board as described in the Power Supplies section.
4. Connect the evaluation board to the SDP-B board and
connect the SDP-B board to the PC using the USB cable
included in the kit.
5. When the software detects the evaluation board, proceed
through any dialog boxes that appear to finalize the
installation.
EVALUATION BOARD SETUP PROCEDURES
To set up the evaluation board, complete the following steps:
1. Connect the evaluation board to the SDP-B board and
connect the USB cable from the SDP-B board to the PC.
2. Power the SDP-B and evaluation board by connecting
5 V dc to the J2 connector (AVDD and AGND).

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EVALUATION BOARD HARDWARE
POWER SUPPLIES
To power the AD5629R/AD5669R evaluation boards, supply
5 V between the AVDD and AGND inputs for the analog supply.
All supplies are decoupled to ground with 10 μF tantalum and
0.1 μF ceramic capacitors.
Table 1. Power Supply Connector
Connector Voltage
J2 Analog power supply, AVDD. For
single-supply operation, supply 5 V.
INPUT SIGNALS
When the SDP-B board controls the evaluation board, the digital
input signals are applied to Connector J3. When the SDP-B board
is not used, apply the digital signals to Connector J6 to
Connector J9.
OUTPUT SIGNALS
The DAC output voltages are available on the SMB connectors,
labeled A to H.
Figure 2. Evaluation Board Block Diagram
AD5669R/
AD5629R
V
OUT
A
TO
V
OUT
HADG728
AD7991
SMB CONNECTORS
A TO H
SMB CONNECTORS
J6 TO J9
SDP CONNECTOR
EXT REF REF195
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LINK CONFIGURATION OPTIONS
Multiple link options must be set correctly to select the appropriate
operating setup before using the evaluation board. Table 2 describes
the functions of these options.
SETUP CONDITIONS
Before applying power and signals to the evaluation board, ensure
that all links are positioned as required by the operating mode.
The evaluation board can operate in SDP controlled mode to be
used with the SDP-B board, or the evaluation boards can be
used in standalone mode.
Table 2 shows the default positions of the links when the
evaluation board is packaged. When the board is shipped, it is
set up to operate with the SDP-B board in SDP controlled mode.
Table 2. Link Functions
Link No. Function Default Position
LK1 This link selects the source of the A0 pin. B
Position A selects AVDD.
Position B selects GND (default). The software is designed with LK1 in this position.
LK2 This link connects the VOUTA to VOUTF pins of the AD5629R/AD5669R to the input pins of the
demultiplexer so that the DAC output value can be monitored using the on-board ADC.
Inserted
LK3 This link connects the VOUTA to VOUTF pins of the AD5629R/AD5669R to the input pins of the
demultiplexer so the on-board ADC can monitor the DAC output value.
Inserted
LK4 This link connects a 0.1 µF capacitor to AGND on the VREF pin. It is recommended to insert LK4 when
using the internal reference.
Inserted
LK5 This link selects the reference source. B
Position A selects the internal reference as the reference source. The AD5629R/AD5669R must be
written to via the software to turn on the internal reference.
Position B selects the on-board 5 V reference as the reference source.
LK7 This link selects the DAC voltage source. B
Position A selects the AVDD analog circuitry power supply source.
Position B selects the on-board 5 V reference as the power supply source.
LK8 This link sets the RESET pin on the ADG728 demultiplexer. B
Position A allows normal operation of the ADG728.
Position B resets the ADG728.
LK9 to LK14 This link connects the VOUTA to VOUTF pins of the AD5629R/AD5669R to the input pins of ADG728
demultiplexer so that the on-board ADC can monitor the DAC output value.
Inserted

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EVALUATION BOARD CIRCUITRY
The E VA L -AD5629RSDZ/E VA L -AD5669RSDZ evaluation
boards easily test the function and performance of the
AD5629R/AD5669R.
Control of the AD5629R/AD5669R is typically performed by
the SDP-B board, which is attached to Connector J3. The SDP-B
board allows the software provided with the kit to load register
values, set the voltage of the DAC outputs, and write to the
control register of the AD5629R/AD5669R.
When the SDP-B board is not required, the control signals can
be applied to the AD5629R/AD5669R by connecting them to
the relevant SMB Connector J6 to Connector J9.
The DAC output voltages are available on the SMB Connector A to
Connector H.

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HOW TO USE THE SOFTWARE
STARTING THE SOFTWARE
To run the E VA L -AD5629RSDZ/E VA L-AD5669RSDZ software,
take the following steps:
1. Connect the evaluation board to the SDP-B board and
connect the USB cable from the SDP-B board to the PC.
2. Power the SDP-B board and the evaluation board by
connecting 5 V to Connector J2.
3. Click Start > All Programs > Analog Devices >
AD5629R/AD5669R > AD5629R/AD5669R Evaluation
Software. While the software connects to the evaluation
board, the message in Figure 3 displays.
Figure 3. Connection Message
If the SDP-B board is not connected to the USB port when the
software launches, a connectivity error displays (see Figure 4).
Figure 4. Connectivity Error
Connect the SDP-B board to the USB port of the PC, wait at
least 40 sec for the SDP-B board to boot, click Rescan, and
follow the instructions.
Alternatively, the software can be used without an evaluation
board. The software runs in simulation mode displaying
expected outputs based on the input data. The main window
of the AD5629R/AD5669R evaluation software then opens, as
shown in Figure 5.
Figure 5. AD5629R/AD5669R Evaluation Software Main Window
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13430-004
13430-005

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SOFTWARE OPERATION
The AD5629R/AD5669R evaluation software allows the user to
program values to the input and DAC registers of each DAC
individually or collectively.
Command Menu
By selecting the appropriate option in the drop-down menu
under Control Menu,you can select Write to Input Register n,
Write to and Update DAC Channel n, Write to Input Register n
Update All (Software LDAC), Power Down/Power Up DAC,
Load Clear Code Register, and Load LDAC Register.
Address Bit
To select which DACs to update, select the appropriate DAC
under Address Bits.
Hardware Control
Set LDAC and CLR high or low by selecting the corresponding
check box under Hardware Pins. This command executes
immediately.
Data Bits
Type the data to be written to the DAC in decimal format.
Write to Part
You must click Write to Par t to write the Data Bits value to
the device.

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EVALUATION BOARD SCHEMATICS AND ARTWORK
Figure 6. EVAL-AD5629RSDZ/EVAL-AD5669RSDZ Schematic (Page 1)
13430-007