Analog Devices AD9741 User manual

AD9741/3/5/6/7 Evaluation Board
Quick Start Guide
One Technology Way •P. O. Box 9106 •Norwood, MA 02062-9106, U.S.A. •Tel: [phone] •Fax: [phone] •www.analog.com
Getting Started with the AD9741/3/5/6/7 Evaluation Board
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] www.analog.com
Fax: [phone] ©2009 Analog Devices, Inc. All rights reserved.
WHAT’S IN THE BOX
AD9747-EBZ Evaluation Board
Mini-USB Cable
AD9747 Evaluation Board CD
EXAMPLE EQUIPMENT LIST
+5Vdc Power Supply: Agilent E3630A
Digital Pattern Generator (DPG2): ADI HSC-DAC-DPG-BZ
DAC Clock Source: R&S SML 02
AQM LO Clock Source: R&S SMA100A
Spectrum Analyzer: Agilent PSAA or R&S FSU
PC: Windows PC with 2 or more USB ports (See Appendix for
system requirements)
INTRODUCTION
The AD9747 Evaluation Board connects to the Analog Devices Digital Pattern Generator (DPG2) to allow for quick evaluation of the
AD9747. The DPG2 allows the user to create many types of digital vectors and transmit these at speed to the AD9747 in any of the
AD9747 operating modes. The AD9747 evaluation board is configured over USB from a panel within the DPGDownloader software.
(Note: The AD9747 operation is described in detail. The operation of the other devices in the family is described in a later section.)
SOFTWARE INSTALLATION
The AD9747 application software, DPGDownloader, should be installed on the PC prior connecting the hardware to the PC. The DAC
Software Suite is included on the Evaluation Board CD, or can be downloaded from the DPG web site at http://www.analog.com/dpg.
This will install DPGDownloader required for loading vectors into the DPG2 and configuring the AD9747 evaluation board.
HARDWARE SETUP (DAC OUTPUT)
Once the DPGDownloader software is installed, the hardware can be connected as shown in Figure 1. A single 5V power supply powers
the evaluation board. The power supply should be able to source up to 1A to cover all of the board’s operating conditions. A low jitter
clock source (< 0.5psec RMS) should be used for the DACCLK. A sinusoidal clock output level of 0 to 4dBm is optimal. By default, the
DAC outputs are connected to SMA connectors for evaluation. Both DAC outputs are available. Later in document, the modifications
for observing the modulator output and different clocking options will be shown. The evaluation board plugs directly into the DPG2.
The PC connects to both the DPG2 and the evaluation board through USB cables.
Figure 1- Bench Set-Up Figure 2- DPG2 and AD9747 Evaluation Board

Quick Start Guide AD9741/3/5/6/7-EBZ
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GETTING STARTED – SINGLE TONE TEST
It is suggested that the basic set-up is verified before making any modifications to the evaluation board.
Basic Hardware Set-Up
Connect the equipment to the AD9747 evaluation board per the following table:
Equipment Connects to AD9747 Eval Board
Power Supply) P5 (+5V), P6 (GND
Signal Source J1 (CLOCK IN), Set source to 100MHz, 2dBm output
PC USB Cable XP2
Spectrum Analyzer J5 (IOUT1_P) or J9 (IOUT2_P)
DPG2 P1 and P2
DPGDownloader Software
Power up the DPG and connect the USB cable to the PC. Next, run the DPGDownloader Software. A shortcut will be installed to your
Start menu during the installation of the DAC Software Suite. To begin, click on the DPGDownloader shortcut in your Programs menu,
typically at Start > Programs > Analog Devices > DPG > DPGDownloader.
The basic parts of the DPGDownloader window are; Hardware Config Panel, EVB Config, Vector Generation Pull-Down Menu, Vector
Palette, Vector Selection Panel and the Download and Play buttons.
Figure 3 – DPGDownloader Window

Quick Start Guide AD9741/3/5/6/7-EBZ
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registered trademarks are the property of their respective owners.
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-If the AD9747 evaluation board has been recognized by the PC, “AD9747 RevB” should be populated in the Evaluation Board
field in the Hardware Config panel.
-Generate a sinewave by pulling down the “Add Generated Waveform” menu and choosing “Single Tone”. Fill in the form as
shown in Figure 3 (Sample Rate = 100MHz, Desired Frequency = 17.0MHz, etc.). Select the I and Q data vectors in the data
selection panel.
-Configure the eval board by writing the value 01 to register 1E1. This configures the AD9516 to use the CLK input to drive the
clock path.
-Bypass the clock dividers on the AD9516.
-The DCO frequency field in the DPGDownloader window should now be reading something close to 100MHz.
-Next hit the download button. This transfers the data from the PC to the DPG memory.
-When the vector has finished downloading, hit the play button. This starts the DPG2 transmitting data to the eval board.
-The output from J5 and J9 should be a clean 29MHz tone as shown below:
A
Ref 3 dBm Att 20 dB
*
7.4 MHz/Start 1 MHz Stop 75 MHz
*
3DB
RBW 5 kHz
VBW 20 kHz
SWT 3 s
1 AP
AVG
*
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
SWP 10 of 10
Date: 19.OCT.2009 17:45:59

Quick Start Guide AD9741/3/5/6/7-EBZ
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Using the AD9741/AD97473/AD9745/AD9746 Evaluation Boards
The evaluation boards for the AD9741/AD97473/AD9745/AD9746/AD9747 are identical except for the DUT installed. The operation of
the eval boards is also the same except for the vector generation “DAC Resolution” field and the Data Width fields as shown below.
These fields should be configured to match the DUT.
Selecting the Modulator Outputs
By default, solder jumpers JP4, JP5, JP6, and JP7 configure the DAC outputs to be observed at SMA outputs J5 and J9. This jumper
setting is shown in Figure 4 a). To connect the DAC outputs to the LPF and the ADL537x analog quadrature modulator, the solder
jumpers need to be repositioned as shown in Figure 4 b). The modulator output can be observed thru the SMA connector J6
(MODULATED OUTPUT). The modulator LO input can be sourced thru SMA connector J10 (LOCAL OSC INPUT). The clock level
into the modulator should be set to about 3dBm.
Figure4–a)DACOutputConfiguration b) Modulator Output Configuration

Quick Start Guide AD9741/3/5/6/7-EBZ
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Eval Board Jumper Options
There are 6 pin jumpers on the evaluation board corresponding to the 6 supplies on the board. They serve as ‘switches’ that determine if
the LDOs on board or external supplies are used for each individual supply. They are shunted by default, which means on board LDOs are
used. When an external supply is necessary, pull off the shunt from the corresponding supply and connect the external supply to the SMA
test points close to the jumper.
Table 1 – Pin Jumper configuration Options
Supply Rail For LDO, Install Pin Jumper For external Supply, use Test Points
CVDD18 JP10 TP1(+1.8V), TP2 (GND)
DVDD18 JP11 TP3(+1.8V), TP4 (GND)
DVDD33 JP12 TP5(+3.3V), TP6 (GND)
AVDD33 JP13 TP7(+3.3V), TP8 (GND)
CVDD33 JP14 TP9 (+3.3V), TP10 (GND)
AVDD5 JP15 TP11(+5V), TP12 (GND)

Quick Start Guide AD9741/3/5/6/7-EBZ
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registered trademarks are the property of their respective owners.
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Appendix A – DPGDownloader Notes
Detailed documentation for the DPGDownloader Software and the Full DPG Suite can be accessed thru the Help Pull-down menu. Also
available from the Help pull-down menu is the “Check for Updates” shortcut for checking to see if there is a more recent
DPGDownloader version available with an option to automatically update the software.