Analog Devices EVAL-AD5932EBZ User manual

EVAL-AD5932EBZ User Guide
UG-796
One Technology Way •P. O. Box 9106 •Norwood, MA 02062-9106, U.S.A. •Tel: [phone] •Fax: [phone] •www.analog.com
Evaluation Board for Programmable Single-Scan Waveform Generator
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS. Rev. A | Page 1 of 10
FEATURES
Full-featured evaluation board for the AD5932
USB cable for PC connection
Can be powered entirely from USB port
Various linking options
PC software for control of AD5932
On-board patchwork area
EVALUATION BOARD DESCRIPTION
The EVAL-AD5932EBZ is a full-featured evaluation board for
the AD5932 programmable single-scan waveform generator.
The evaluation board interfaces to the USB port of a PC. It is
possible to power the entire board using the USB port. Software
is available with the EVAL-AD5932EBZ, allowing users to easily
program the AD5932.
The AD5932 evaluation board includes a 50 MHz oscillator that
provides the MCLK for the AD5932. The user can remove this
oscillator, if required, and drive the AD5932 with a different
clock oscillator or an external clock source via a SMB connector.
AD5932 DEVICE DESCRIPTION
The AD5932 is a waveform generator that allows the user to
generate synthesized analog or digital frequency-stepped
waveforms. Because frequency profiles are preprogrammed,
continuous write cycles are eliminated, which frees up valuable
DSP/microcontroller resources. Waveforms start from a known
phase and increment phase continuously, allowing phase shifts
to be easily determined. The device can be operated with clock
frequencies of up to 50 MHz.
Complete specifications for the AD5932 are available in the
AD5932 data sheet, available from Analog Devices, Inc., which
should be consulted in conjunction with this user guide when
using the evaluation board.
EVALUATION BOARD PHOTOGRAPH
Figure 1.
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UG-796 EVAL-AD5932EBZ User Guide
TABLE OF CONTENTS
Features .............................................................................................. 1
Evaluation Board Description......................................................... 1
AD5932 Device Description ........................................................... 1
Evaluation Board Photograph......................................................... 1
Revision History ............................................................................... 2
Hardware Description...................................................................... 3
Power Supplies .............................................................................. 3
Link Options ................................................................................. 3
Evaluation Board Software...............................................................4
Installing the Software ..................................................................4
Using the Software ........................................................................4
Evaluation Board Schematics and Artwork...................................6
Ordering Information.......................................................................9
Bill of Materials..............................................................................9
REVISION HISTORY
3/15—Rev. 0 to Rev. A
Reorganized Layout............................................................Universal
Changes to Evaluation Board Description Section
and Figure 1....................................................................................... 1
Changes to Table 1............................................................................ 3
Changes to Evaluation Board Software Section, Figure 2,
and Figure 3 ...................................................................................... 4
Changes to Figure 4 to Figure 6...................................................... 5
3/06—Revision 0: Initial Version
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EVAL-AD5932EBZ User Guide UG-796
HARDWARE DESCRIPTION
POWER SUPPLIES
The AD5932 has two analog power supply inputs: AVDD
(analog VDD) and AGND (analog GND). There are also two
digital supplies on the device: DVDD (digital VDD) and
DGND (digital GND). Both of these supplies are independent
of each other and can be powered from 2.3 V to 5.5 V.
As well as supplying the digital supply for the AD5932, DVDD
provides the supply for the 50 MHz oscillator and the ADG774
quad 2:1 multiplexer.
There are two options available to power the EVA L -AD5932EBZ
evaluation board:
•The USB port of a computer
•An external power supply
The default option for powering the board is from the USB port
(LK1 and LK8 are in Position B). Alternatively, 2-pin terminal
blocks are available for use with an external power supply.
The 5 V from the USB port is regulated to 3.3 V, which provides
power for the CY7C68013 USB controller and related USB
circuitry. The USB port also provides the GND connections for
the evaluation board.
When LK1 is in Position B, DVDD is supplied with 3.3 V from
the regulator. When LK8 is in Position B, AVDD is powered
from DVDD through the L1 ferrite bead (600 Ω at 100 MHz).
When LK1 and LK8 are in Position A, the terminal blocks
provide power to the board.
To operate the device at a different supply than up to 3.3 V,
use the terminal blocks. To abide by the maximum ratings of
the AD5932, use the E VA L-AD5932EBZ as a standalone board
if operating at a voltage of less than 3 V. Therefore, SCLK, SDATA,
FSYNC, CTRL, INTERRUPT, and STANDBY must be externally
supplied by the user.
DGND and AGND are connected under the AD5932. Therefore,
it is recommended not to connect AGND and DGND elsewhere
in the system. AVDD and DVDD are decoupled to the relevant
ground plane using a 10 µF tantalum capacitor and a 0.1 µF
ceramic capacitor at their source and again at the AD5932.
LINK OPTIONS
Set the link options on the evaluation board for the required
operating setup before using the board. The functions of these
links are described in Table 1.
Table 1. Link Options
Link No. Function Description Default
LK1
This link selects the power supply source for the digital circuitry (DVDD).
Position B
Position A selects J2 as the digital circuitry power supply source.
Position B selects the 3.3 V from the ADP3303 regulator that is powered from the USB port as the digital circuitry
power supply source.
LK2 This link controls whether the serial interface of the AD5932 is driven from a PC or used in standalone mode. Position A
Position A connects the FSYNC, SCLK, and SDATA pins to the USB controller (controlled from the software).
Position B connects the FSYNC, SCLK, and SDATA pins to their respective SMBs (J3, J4, and J5).
LK3 This link selects the MCLK source. Position B
Position A selects SMB J13 (labeled MCLK).
Position B selects the on-board oscillator (50 MHz provided).
LK4 This link selects whether the CTRL signal is being driven by software or externally through an SMB. Position B
Position A connects the CTRL pin to SMB J6 (labeled CTRL).
Position B connects the CTRL pin to the USB controller for software control.
LK5 This link selects whether the INTERRUPT signal is being driven by software or externally through an SMB. Position B
Position A connects the INTERRUPT pin to SMB J7 (labeled INTERRUPT).
Position B connects the INTERRUPT pin to the USB controller for software control.
LK6 This link selects whether the STANDBY signal is being driven by software or externally through an SMB. Position B
Position A connects the STANDBY pin to the STANDBY SMB J8 (labeled STANDBY).
Position B connects the STANDBY pin to the USB controller for software control.
LK7 Insert this link to connect the CAP/2.5 V pin to DVDD if operating DVDD at <2.5 V. Removed
LK8
This link selects the power supply source for the analog circuitry (AVDD).
Position B
Position A selects J14 as the analog circuitry supply source.
Position B connects AVDD to DVDD through a ferrite bead, L1 (600 Ω at 100 MHz) and a 1.6 Ω resistor (R16).
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EVALUATION BOARD SOFTWARE
The AD5932 evaluation kit is available from the Analog Devices
website at www.analog.com. The AD5932 evaluation software is
included in the evaluation kit on a CD, and is also available for
download at the EVAL-AD5932EBZ product page.
Install the evaluation software before connecting the evaluation
board to the USB port of the PC to ensure that the evaluation
board is correctly recognized when connected to the PC.
The evaluation software is compatible with Windows® XP (32-bit),
Windows Vista, and Windows 7 (32-bit and 64-bit).
INSTALLING THE SOFTWARE
To install the evaluation software, take the following steps:
1. From the EVAL-AD5932EBZ product page, download
the AD5932 evaluation software .zip file. The evaluation
software is also included in the AD5932 evaluation kit on
a CD.
2. Open the folder and double-click the setup.exe file to start
the installation procedure.
3. When prompted, select the destination directory for the
AD5932 program and the National Instruments products.
By default, the files are saved to C:\Program Files\Analog
Devices\AD5932.
4. When the directory has been selected, the installation
procedure copies the files into the relevant directories on
the hard drive. The installation program creates a program
group named Analog Devices with the subgroup AD5932
in the Start menu of the taskbar.
5. Double-click the AD5932 icon to start the program. The
evaluation board is then automatically detected.
USING THE SOFTWARE
To launch the software, click Start > All Programs > Analog
Devices > AD5932 > AD5932 Evaluation Software. The
AD5932 evaluation software is launched as a LabView GUI
(see Figure 2).
Figure 2. LabView GUI for AD5932
The upper half of the window provides the different control
register options for determining the output and operation mode
of the device. More details on all of these options can be found
in the AD5932 data sheet.
After completing the control register write section, enter the
frequency of MCLK in Hertz (Hz). This value is then used
to calculate all frequency and time values throughout the
software.
Next, enter the values for the numeric registers: the start
frequency (fSTART), frequency increments (Δf), and number
of increments (NINCR).
Figure 3. Frequency Output
The values of the start frequency and the increment frequency
are entered in Hertz (Hz).
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EVAL-AD5932EBZ User Guide UG-796
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The increment frequency determines the duration of the DAC
output signal for each individual frequency of the frequency
scan. The AD5932 offers the user two choices:
The duration is a multiple of cycles of the output
frequency (fOUT)
The duration is a multiple of MCLK cycles (MCLK)
Figure 4. DAC Output Determination Options
The SYNCSEL and MSB outputs are also available from the
EVAL-AD5932EBZ evaluation board. The user can select
whether to create a pulse at the end of sweep (EOS) or at the
end of each frequency increment using the SYNCSEL
FUNCTION, as shown in Figure 5.
Figure 5. Pin Configuration
Finally, the PROGRAM button (see Figure 6) writes this
information to the AD5932 registers. To start the frequency
sweep, click CONTROL. The STANDBY pin allows sections
of the AD5932 that are not in use to be powered down to
minimize power consumption. The INTERRUPT pin allows
the user to interrupt during a frequency scan.
Figure 6. Control Pins
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UG-796 EVAL-AD5932EBZ User Guide
EVALUATION BOARD SCHEMATICS AND ARTWORK
Figure 7. EVAL-AD5932EBZ Schematic, Page 1 of 2
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EVAL-AD5932EBZ User Guide UG-796
Figure 8. EVAL-AD5932EBZ Schematic, Page 2 of 2
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UG-796 EVAL-AD5932EBZ User Guide
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Figure 9. EVAL-AD5932EBZ Silkscreen Artwork
Figure 10. EVAL-AD5932EBZ Component Side Artwork
Figure 11. EVAL-AD5932EBZ Solder Side Artwork
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EVAL-AD5932EBZ User Guide UG-796
ORDERING INFORMATION
BILL OF MATERIALS
Table 2.
Item Qty Reference Description Supplier/Part No.
1 3 C1, C2, C6 22 pF, 0603 ceramic capacitor FEC 722-005
2 1 C10 2.2 µF, 0805 ceramic capacitor Digikey 445-1588-1-ND
3 2 C18, C26 0603 capacitor Not Inserted
4 1 C24 0805 capacitor Not Inserted
5 1 C23 0.01 µF, 0603, ceramic capacitor FEC 722-066
6 20 C3 to C5, C7, C8, C12, C14, C15,
C17, C20, C27, C28, C30 to C37
0.1 µF, 0603, ceramic capacitor FEC 499-675
7 6 C9, C11, C13, C16, C19, C29 10 µF, TAJA, tantalum capacitor FEC 331-3888
8 1 D2 Green LED FEC 515-620
9 1 J1 USB mini-B connector (USB-OTG) FEC 476-8309
10 2 J2, J14 2-pin terminal block (5 mm pitch) FEC 151-785
11 10 J3 to J11, J13 Subminiature BNC connector (SMB) FEC 310-682
12 1 L1 Ferrite bead (600 Ω at 100 MHz) FEC 581-094
13 7 LK1 to LK6, LK8 3-pin SIL header (with shorting block) FEC 512-047 and 150-411
14 1 LK7 2-pin SIL header (with shorting block) FEC 511-705 and 150-411
15 2 R1, R2 2.2 kΩ, 0603 resistor FEC 911-276
16 3 R10 to R12 10 kΩ, 0603 resistor FEC 911-355
17 1 R15 0603, resistor Not Inserted
18 1 R16 1.5 Ω, 0603 resistor FEC 758-267
19 1 R17 0 Ω short FEC 772-227
20 1 R3 1 kΩ, 0603 resistor FEC 911-239
21 2 R4, R5 100 kΩ, 0603 resistor FEC 911-471
22 1 R9 50 Ω, 0603 resistor FEC 422-1825
23 26 T1 to T26 Test point FEC 240-333
24 1 U1 AD5932 AD5932
25 1 U2 IC, serial EEPROM, 64k, 2.5 V, 8-SOIC Digikey 24LC64-I/SN-ND
26 1 U3 Precision voltage regulator ADP3303AR-3.3
27 1 U4 CY7C68013-CSP USB microcontroller Embassy CY7C68013-56LFC
28 1 U5 Quad SPDT switch/2:1 mux ADG774BRQ
29 1 U7 50 MHz, CMOS/TTL, crystal (and 14-pin DIP) FEC 788-480/97103
30 1 Y1 24 MHz, CM309S, SMD, crystal FEC 569-872
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UG-796 EVAL-AD5932EBZ User Guide
NOTES
ESD Caution
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection
circuitry, damage may occur on devices subjected to high energy ESD.Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
Legal Terms and Conditions
By using the evaluation board discussed herein (together with any tools, components documentation or
support materials, the“Evaluation Board”), you are agreeing to be bound by the terms and conditions
set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices StandardTerms and Conditions of Sale shall govern. Do not use the 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 One Technology Way, Norwood, MA 02062, USA. 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. Customer understands and agrees that the Evaluation Board is provided
for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpo
se. Furthermore, the license granted is expressly made subject to the following additional
limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term
“Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants.The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including
ownership of theEvaluation Board, are reserved by ADI. CONFIDENTIALITY.This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may
not disclose or transfer any portion of the Evaluation Board to anyother party for anyreason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees topromptly
return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred
damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board. Modifications
to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive.TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer.
Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO WARRANTIES OR
REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE
EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY
RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF THE
EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS
, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE
AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable
United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of
Massachusetts (excluding conflict of law rules). Anylegal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby
submits to the personal jurisdiction and venue of such courts.The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed.
©2006–2015 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG12924-0-3/15(A)
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