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FEATURES
Full-featured evaluation board for the AD9959
►
PC evaluation software for control and measurement of the
►
AD9959
USB interface
►
Graphic user interface (GUI) software with frequency sweep
►
capability for board control and data analysis
Factory tested and ready to use
►
APPLICATIONS
AD9959 performance evaluation
►
GUI control panel for learning AD9959 programming
►
EVALUATION BOARD BLOCK DIAGRAM
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Evaluation Board for 4-Channel 500 MSPS DDS with 10-Bit DACs
User Guide | EVAL-AD9959
GENERAL DESCRIPTION
This document serves as a guide to the setup and use of the
AD9959 evaluation board. The AD9959 is a multichannel frequency
synthesizer that incorporates four synchronous direct digital synthe-
sis (DDS) cores with many user-programmable functions.
The evaluation board software provides a graphical user interface
for easy communication with the device along with many user-
friendly features such as the "mouse-over effect." Many elements
of the software can be clarified by placing your mouse over the
element.
Figure 19
shows how this feature works when users place
their mouse over the Ref Clock box.
This document is intended for use in conjunction with the
data sheet, which is available from Analog Devices at www.ana-
log.com.
Figure 1.
UG-2281
AD9959
Rev. A | 1 of 27
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Related Manuals for Analog Devices EVAL-AD9959
Summary of Contents for Analog Devices EVAL-AD9959
- Page 1 This document is intended for use in conjunction with the AD9959 GUI control panel for learning AD9959 programming ► data sheet, which is available from Analog Devices at www.ana- log.com. EVALUATION BOARD BLOCK DIAGRAM Figure 1. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT Rev.
- Page 2 User Guide EVAL-AD9959 TABLE OF CONTENTS Features..............1 Configuring the Evaluation Board.......5 Applications............1 Loading the Software......... 7 General Description..........1 Feature Control Windows........9 Evaluation Board Block Diagram......1 Channel Control..........11 Evaluation Board Hardware........3 Channel Output Config........13 Package Contents..........3 Debug...............15 Requirements............. 3 DUT I/O Box.............
- Page 3 (such as a µP, FPGA, or DSP). evaluation board has been preconfigured so that these four AVDD Analog Devices provides a GUI for the PC; it does not provide connections (J16, J17, J19, and J20) are tied together. Supplying control software for external controllers.
- Page 4 User Guide EVAL-AD9959 EVALUATION BOARD HARDWARE EVALUATION BOARD LAYOUT Figure 2. Manual I/O Control Headers Band Gap Supply Provides the interface for communication with the AD9959 when Provides the voltage needed for band gap functionality. the part is under the control of an external controller (manual control).
- Page 5 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE INSTALLING THE SOFTWARE Follow these steps to install the AD9959 evaluation software: 1. Log into your PC system with administrative privileges; this is an essential requirement in successfully installing the AD9959 evaluation software. 2. Uninstall any previous versions of the AD9959 evaluation soft- ware from your PC system.
- Page 6 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE Windows XP Users 1. Power up the AD9959 evaluation board (see Table 2. Connect the evaluation board to the computer using a USB cable via the USB port. Then, the VBUS LED (CR1 on AD9959 evaluation board) illuminates.
- Page 7 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE After completing these steps, the AD9959 evaluation software loads onto your PC system. You are then presented with one of several status messages. These messages are discussed in further detail in the next section, Status Messages Upon Loading Software.
- Page 8 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE Figure 14. Successful Load Figure 15. Error Message Figure 16. REF CLK Not Recognized analog.com Rev. A | 8 of 27...
- Page 9 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE FEATURE CONTROL WINDOWS Chip Level Control Figure 17. Chip Level Control Window The Chip Level Control window provides control of the features 2. Clock that affect all channels of the AD9959; this window is not channel- The Clock section allows the user to configure the reference clock specific.
- Page 10 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE System Clock displays the operating frequency the DDS core RU/RD feature, the SDIO RU/RD Control jumpers must be placed (system). The value shown here is derived from the values entered (see Figure 2). The default setting of this box is RU/RD Disabled.
- Page 11 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE CHANNEL CONTROL Figure 21. Channel Control Window The Channel Control window provides control of the features that affect the AD9959 at a channel-specific level. The following describes the sections of the Channel Control window as they are...
- Page 12 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE meaning the pipeline delay for updates to frequency, amplitude, and phase will not be equal. See the DATA LATENCY (PIPELINE DELAY) section in the Specifi- cations table of the AD9959 data sheet for the exact timing delays with and without this feature enabled.
- Page 13 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE CHANNEL OUTPUT CONFIG Figure 23. Channel Output Config Window The Channel Output Config window configures various output Phase Offset consists of two boxes. In the first box, set the integer characteristics of the channel(s). Use the Channel Select tabs to factor (1–999) to increment or decrement the phase offset by.
- Page 14 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE Note that when performing linear frequency/amplitude sweeps, the Use the Profile Registers to enter the information needed for mod- Enable ASF box must be left unchecked. ulation (FSK, PSK, or ASK) and linear sweep modes of operation.
- Page 15 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE The range of the Rising/Falling Step Interval is computed similarly 3. Profile and RURD Pin Control to the time range for the Amplitude Ramp Rate. Note that the The Profile and RURD Pin Control section covers the profile pins...
- Page 16 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE Serial, or 4-Bit Serial. For more information, please refer to the Serial I/O Modes of Operation section of the AD9959 data sheet. Figure 32. To access the DUT I/O box, click I/O button (left of View–see Figure 31) and select DUT I/O.
- Page 17 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE SETUP FILES Introduction AD9959 can be configured to perform many operations in various combinations. Preconfigured setup files have been included with the AD9959 evaluation software that show the device in all three modes of operation: single tone, modulation, and linear sweep. These example setup files serve as a reference and/or starting point when trying to configure the device for a desired setup for the first time.
- Page 18 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE Single Tone Mode Open the Single Tone Mode folder to access the single tone mode of operation example setup files. This section discusses the All Channels on @ 10_20_30_40MHz_RURD enabled.stp file. The Chip Level Control window...
- Page 19 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE controls Channel 1, P2 controls Channel 2, and P3 controls Channel 3. If a profile pin is deselected, the associated channel’s output will return to 0 MHz. To return to full scale, re-press the profile pin that triggers the RU/RD operation.
- Page 20 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE Figure 41. In the Channel Control window (Figure 42), Channel 2 has Frequency selected as its modulation output as shown in the Modulation Output Type box. As discussed in the Channel Constraint Guidelines section of the...
- Page 21 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE Figure 43. Linear Sweep Mode Open the Linear Sweep Mode folder to access the linear sweep mode of operation example setup files. Once this folder is opened you will be presented with the window shown in Figure Figure 44.
- Page 22 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE Figure 45. In the Channel Control window (Figure 46), each channel has Amplitude selected for its modulation output as shown in the Modulation Output Type box. As discussed earlier in the 4. Linear Sweep Options section, the Enable Linear Sweep box found in Linear Sweep Options section must be checked in order to configure the part for the linear sweep mode of operation.
- Page 23 User Guide EVAL-AD9959 EVALUATION BOARD SOFTWARE Figure 47. analog.com Rev. A | 23 of 27...
- Page 24 User Guide EVAL-AD9959 SCHEMATIC Figure 48. AD9959/PCB Schematic, Page 1 analog.com Rev. A | 24 of 27...
- Page 25 User Guide EVAL-AD9959 SCHEMATIC Figure 49. AD9959/PCB Schematic, Page 2 analog.com Rev. A | 25 of 27...
- Page 26 User Guide EVAL-AD9959 SCHEMATIC Figure 50. AD9959/PCB Schematic, Page 3 analog.com Rev. A | 26 of 27...
- Page 27 Evaluation Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc. (“ADI”), with its principal place of business at Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY.
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